From d6d746ba1514a6c19a4b7df3efa5799cd1254e22 Mon Sep 17 00:00:00 2001 From: Yangze Luo Date: Wed, 23 Sep 2026 14:24:14 +0800 Subject: [PATCH 01/14] feat!: the judge reads what says whether the work moves on The judge read what auto mode's permission classifier reads: every message the person sent, every tool call in full except read-only lookups, and CLAUDE.md. Replayed over real sessions, nine tenths of that prompt was the calls in full, and they are what made it grow with the session -- sixteen thousand tokens a judgement on average, three cents -- while saying least about whether a piece of work is done. It now reads the step; every request, the first and the latest three whole and the rest cut to a line; the assistant's latest ten messages; what its latest twelve calls touched, a file or what a command says it does, never the call in full; and its task list. Never any tool output, and not CLAUDE.md, so taskcut no longer reads any file. The prompt is about two thousand tokens however long the session has run. Messages nobody typed -- a background task's report, a plugin's prompt, taskcut's own Continue. -- are not read as requests, and a compaction's summary is read as one. BREAKING CHANGE: the judge no longer reads CLAUDE.md or tool calls in full, and judgePrompt takes no memory argument. Co-Authored-By: Claude Opus 5.5 (1M context) --- .claude-plugin/marketplace.json | 4 +- .claude-plugin/plugin.json | 2 +- CHANGELOG.md | 14 ++- README.md | 34 +++--- SECURITY.md | 2 +- docs/compatibility.md | 5 +- docs/design.md | 96 ++++++++++----- docs/troubleshooting.md | 9 +- eval/judge/hooks/bench.ts | 4 +- hooks/hooks.json | 2 +- hooks/judge.ts | 208 ++++++++++++++++++++++++-------- hooks/register.ts | 22 +--- test/judge.test.ts | 186 ++++++++++++++++++++-------- 13 files changed, 408 insertions(+), 180 deletions(-) diff --git a/.claude-plugin/marketplace.json b/.claude-plugin/marketplace.json index c2c8337..46dc28b 100644 --- a/.claude-plugin/marketplace.json +++ b/.claude-plugin/marketplace.json @@ -1,14 +1,14 @@ { "$schema": "https://anthropic.com/claude-code/marketplace.schema.json", "name": "taskcut", - "description": "Compaction at the end of a sub-task, not when the window fills, for Claude Code", + "description": "Compaction when the work moves on to the next sub-task, not when the window fills, for Claude Code", "owner": { "name": "Yangze Luo" }, "plugins": [ { "name": "taskcut", - "description": "Compacts at the end of a sub-task instead of when the context window fills. Once the context is past a floor, a small model judges at the end of each turn whether the work asked for is finished, from the same inputs auto mode's permission classifier reads; if it is, taskcut runs Claude Code's own compaction. Below the floor it does nothing and costs nothing.", + "description": "Compacts when the work moves on from one sub-task to the next instead of when the context window fills, including in the middle of a long turn. Once the context is past a floor, a model judges each step, reading what you asked for and where Claude has got to but never any tool output, for whether the work moves on from a finished piece to another; if it does, taskcut runs Claude Code's own compaction. Below the floor it does nothing and costs nothing.", "author": { "name": "Yangze Luo" }, diff --git a/.claude-plugin/plugin.json b/.claude-plugin/plugin.json index 77283be..45b73d8 100644 --- a/.claude-plugin/plugin.json +++ b/.claude-plugin/plugin.json @@ -1,7 +1,7 @@ { "name": "taskcut", "version": "0.8.0", - "description": "Compacts when the work moves on from one sub-task to the next instead of when the context window fills, including in the middle of a long turn. Once the context is past a floor, a model judges each step, from the same inputs auto mode's permission classifier reads, for whether the work moves on from a finished piece to another; if it does, taskcut runs Claude Code's own compaction. Below the floor it does nothing and costs nothing.", + "description": "Compacts when the work moves on from one sub-task to the next instead of when the context window fills, including in the middle of a long turn. Once the context is past a floor, a model judges each step, reading what you asked for and where Claude has got to but never any tool output, for whether the work moves on from a finished piece to another; if it does, taskcut runs Claude Code's own compaction. Below the floor it does nothing and costs nothing.", "author": { "name": "Yangze Luo" }, diff --git a/CHANGELOG.md b/CHANGELOG.md index 3a0fb3f..b8383c1 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -23,11 +23,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 - A turn is never ended at its first step: on Claude Code 2.1.280 a compaction after a request that ended on your own words, `/compact` typed by hand included, answers them instead of summarising the conversation. -- The judge reads the whole conversation, as the permission classifier reads - its whole transcript, rather than the newest 40,000 characters, so each - judgement's prompt begins with everything the one before it read. A - conversation too long for the judge's window is no verdict, and keeps the - context. +- **The judge reads what says whether the work moves on, and little else**: + every message you sent, the first and the latest three whole and the rest + cut to a line; Claude's latest ten messages; what its latest twelve calls + touched -- a file, or what a command says it does, never the call in full; + its task list; and the step. It no longer reads every command in full, nor + `CLAUDE.md`, and taskcut no longer reads any file. A judgement is about two + thousand tokens however long the session has run, where it was sixteen + thousand on average and grew with the work, and costs about half a cent + instead of about three. - The notice reads `compacting before the next piece`. - taskcut is released under the MIT License, in place of Apache-2.0. diff --git a/README.md b/README.md index fc7245e..ccb7f0e 100644 --- a/README.md +++ b/README.md @@ -23,15 +23,15 @@ when the context window fills. taskcut changes **when** Claude Code compacts, not how. Once the context is past a floor, a model judges each step Claude takes for whether the work is -moving on from a finished piece to another, reading what auto mode's -permission classifier reads. If it is, taskcut runs Claude Code's own -compaction, the one `/compact` runs. A piece being finished is not enough: -when the last thing you asked for is done, nothing has moved on yet, and what -you say next may well be about it. Hand over twenty tasks in one message and -walk away, and it compacts between them, not after the last. Once a turn has -ended the work is back with you, and so is `/compact`. Below the floor it does -nothing at all and costs nothing, and nothing in your prompts has to mention -it. +moving on from a finished piece to another, reading what you asked for and +where Claude has got to, never any tool output. If it is, taskcut runs Claude +Code's own compaction, the one `/compact` runs. A piece being finished is not +enough: when the last thing you asked for is done, nothing has moved on yet, +and what you say next may well be about it. Hand over twenty tasks in one +message and walk away, and it compacts between them, not after the last. Once +a turn has ended the work is back with you, and so is `/compact`. Below the +floor it does nothing at all and costs nothing, and nothing in your prompts +has to mention it. ## Try it @@ -114,7 +114,7 @@ Start sessions with `CLAUDE_CODE_ENABLE_FUNCTION_HOOKS=1 claude`, or put | | | | --- | --- | | **Below the floor** | Nothing: no model call, no tool, nothing written. | -| **Each step Claude explains past it** | One `sonnet` call and a sentence out. What goes in is your messages and Claude's commands since the last compaction, never their output: a few thousand tokens, tens of thousands in a long stretch of work, uncached (`$.model.complete` marks no cache point) — a few cents. It runs while the step's tools run, so it rarely adds a wait. | +| **Each step Claude explains past it** | One `sonnet` call and a sentence out. What goes in is your messages, Claude's latest messages, what its latest commands touched and the step it is taking, never any output: about two thousand tokens however long the session has run, uncached (`$.model.complete` marks no cache point) — about half a cent. It runs while the step's tools run, so it rarely adds a wait. | | **Each compaction** | Whatever `/compact` costs, because it is `/compact`. | Past the floor is a short stretch: a compaction takes the context back under @@ -145,12 +145,14 @@ installed with. After each step of the main conversation, taskcut reads the context fill the status line shows. Below `floorPercent` it stops there. Past it, it asks `model`, through the hooks API's `$.model.complete`, whether the work moves on -from a finished piece to another at that step. The judge reads what auto mode's -permission classifier reads — your messages, the assistant's tool calls except -read-only lookups, and `CLAUDE.md`, never any tool output, all of it however -long the session — plus the step it is judging: what Claude just said and the -calls it is making. A step that asks you something is never a boundary, and -the end of a turn is never judged. +from a finished piece to another at that step. The judge reads what says so +and little else: every message you sent (the first and the latest few whole, +the rest cut to a line), Claude's latest messages, what its latest calls +touched — a file, or what a command says it does, never the call in full — its +task list if it keeps one, and the step it is judging: what Claude just said +and the calls it is making. Never any tool output, and not `CLAUDE.md`. A step +that asks you something is never a boundary, and the end of a turn is never +judged. On a yes, taskcut waits for that step's tools to finish, ends the turn with `$.turn.abort` before the next request goes out, calls `$.session.compact()` — diff --git a/SECURITY.md b/SECURITY.md index 7ae2a78..acb5b42 100644 --- a/SECURITY.md +++ b/SECURITY.md @@ -29,7 +29,7 @@ this plugin calls. Reports that matter most: session, or in a subagent's loop; * a prompt taskcut submits that is anything other than `Continue.`; * a path by which the judge is sent more than it is documented to read -- tool - output, or files other than the `CLAUDE.md` files already in the context. + output, a call in full from before the step, or the contents of any file. ## What is out of scope diff --git a/docs/compatibility.md b/docs/compatibility.md index 5de8d64..fdd06d8 100644 --- a/docs/compatibility.md +++ b/docs/compatibility.md @@ -9,11 +9,12 @@ declarations it is written against are generated per Claude Code version by | Depends on | Kind | If it changes | | --- | --- | --- | | `session.start`, `turn.step`, `turn.complete` | hook events | taskcut stops working; `claude plugin validate` reports the unknown event before a session loads it | -| `$.session.usage`, `$.session.messages`, `$.session.compact`, `$.fs.read`, `$.env.get`, `$.model.complete`, `$.turn.abort`, `$.prompt.submit`, `$.ui.log` | engine calls | same: refused at load, named in the validation output | +| `$.session.usage`, `$.session.messages`, `$.session.compact`, `$.env.get`, `$.model.complete`, `$.turn.abort`, `$.prompt.submit`, `$.ui.log` | engine calls | same: refused at load, named in the validation output | +| what `$.session.messages` holds: a compaction's summary opening with "This session is being continued from a previous conversation", a plugin's prompt with "The … plugin sent a message", a background task's report with `` | text Claude Code writes | the judge would read such a message as something you asked for; it is still shown the step, so the cost is a request misread, not a crash | | a hook's budget counting only its own code, not its `$` calls | engine rule | the judgement inside a step would overrun it, and the engine would skip the hook: taskcut would compact only at the end of a turn, and say so in the transcript | | what `$.model.complete` resolves to | data shape | `claude plugin validate` does not see it; only `tsc` against regenerated types does. 2.1.278, which taskcut was measured on, resolved the reply's text; 2.1.280 resolves `{ isAnswered, text, usage }`, and 0.8.0 read that object as text, so every judgement failed and nothing was ever compacted. The reply is now taken as `unknown` and read by `readReply`, which knows both shapes and treats anything else as no reply | | a compaction after a request that ended on the person's words answering them instead of summarising | engine bug, 2.1.280 | taskcut never ends a turn at its first step; when it is fixed, that guard can go | -| `$.model.complete` sending no cache breakpoint | engine behaviour, 2.1.280 | none needed: the judge's prompt keeps a stable prefix, so a release that caches it serves it with no change here | +| `$.model.complete` sending no cache breakpoint | engine behaviour, 2.1.280 | little: the judge reads about two thousand tokens, and a cache would save a fraction of a cent; see [the judge's prompt cache](design.md#the-judges-prompt-cache) | | `session.start`'s `isInteractive` | data shape | taskcut would stop ending turns early, and so would not compact at all | | `CLAUDE_CODE_ENABLE_FUNCTION_HOOKS` | early-access flag | **nothing**, by design — see below | diff --git a/docs/design.md b/docs/design.md index 5d1331f..b97661e 100644 --- a/docs/design.md +++ b/docs/design.md @@ -125,31 +125,60 @@ task and started the next was never a boundary. ## What the judge reads -The judge reads what auto mode's permission classifier reads, which decides -from a portion of the transcript rather than all of it: every message the -person sent, every tool call the assistant made except read-only lookups, and -`CLAUDE.md`, with all tool output stripped. To that it adds the step being -judged -- what the assistant just said and the calls it is making -- as the -classifier adds the pending action. - -It reads all of that portion, as the classifier does. Claude Code 2.1.280's -classifier (`xLt` and `Zke` in the bundle) puts every entry of the transcript -in its request and never leaves the oldest out; when the request no longer fits -its window it gives no verdict (`transcript_too_long`) and falls back to asking -the person. 0.8's judge kept the newest 40,000 characters instead, which moved -the start of what it read with every line once the conversation passed that. -Now the conversation is read whole, and a conversation too long for the -judge's own window is a failed request: no verdict, the context kept -- the -judge's own way of falling back. Each message and each call is still clipped -on its own, and what the judge reads is a fraction of the context: no tool -output, and nothing from before the last compaction. +The judge is asked one thing, and most of a session says nothing about it. + +Up to 0.8 it read what auto mode's permission classifier reads: every message +the person sent, every tool call except read-only lookups, and `CLAUDE.md`, +all of it, with tool output stripped, and the step last. Replayed over real +sessions, nine tenths of that prompt was the calls in full -- `Bash` commands, +heredocs, whole files handed to `Write` -- and they are what made it grow with +the session: on the thirty-six-change sqlglot run, 32,000 characters at the +median and 100,000 at the most, sixteen thousand tokens a judgement on +average. They are also what says least about whether the work moves on. A +command says what was run, not whether a piece is done. + +What does say so, in order of how much: + +1. **The step itself.** Rule 2 turns on its own words: a piece is complete, + and the next is named or started. It is read whole, up to its last 2,000 + characters, with its calls. +2. **What the person asked for**, which says whether there is a next piece at + all. The first request, usually the brief, and the latest three are read + whole; the ones between are cut to a line each. Messages nobody typed are + left out: a background task reporting in, a prompt a plugin submitted + (taskcut's own `Continue.` among them), a local command's record. +3. **Where the assistant has got to.** Its latest ten messages; what its + latest twelve calls other than lookups touched -- the file an `Edit` + changed, the description a `Bash` call gives, never the call in full; and + its task list as it last wrote it, through `TodoWrite` or `TaskCreate` and + `TaskUpdate`. + +Never any tool output, as before, and no longer `CLAUDE.md`: it says how to +work, not how far the work has got. + +The assistant's messages and what its calls touched go together. Replayed +without the calls, the judge credited a move one message had announced -- +"Issue 11 is done. Issue 12: StarRocks `REFRESH EXTERNAL TABLE`." -- to the +step after it, which said only how it would implement issue 12, and called +that step the boundary. With a trail of what was actually done beside the +words, it did not. And without either, it missed a step as terse as "Fixed and +verified." every time. The permission classifier leaves assistant text out so +that the agent cannot talk it into an unsafe action; here the step's own words +are the evidence, and the worst a persuasive step can do is compact early. + +What the judge reads is now set by those windows and not by the work: it +grows by a line for each message the person sends, and by nothing for the +calls, the output or the length of the turn. [measurement.md](measurement.md) +has what that costs and how often it is right. The default model is `sonnet`, as the permission classifier's is. On twelve steps of one long turn -- three boundaries among them -- judged three times each, `sonnet` was right 36 times out of 36 and `haiku` 32, every miss a boundary it did not see. On forty steps sampled from inside twenty real -changes, none of them a boundary, `sonnet` called none of them one. A judgement -costs a few cents and runs only past the floor. +changes, none of them a boundary, `sonnet` called none of them one. Given the +view above, `haiku` did worse still: it went on as the assistant it was shown, +reading the next file or planning the fix, rather than judging the step. A +judgement costs about half a cent and runs only past the floor. ## The floor @@ -305,19 +334,26 @@ A plugin could build that request itself, with `$.session.authorize()` and `$.http.fetch`, but only by copying what the engine does to send one -- the credential's beta header, the identity block a subscription requires, the base URL, the model id -- which is the engine's to change. So the judge uses -`$.model.complete`, and its prompt is built the way the classifier's is, ready -for a call that caches: the rules, `CLAUDE.md`, the whole conversation oldest -first, and the step last. `$.session.messages()` only ever adds to what the -judge reads -- between two steps the one field that changes on an earlier -message is a call's `result`, which the judge never reads -- so each -judgement's prompt begins with everything the one before it read ahead of its -step. +`$.model.complete`. + +Up to 0.8 the judge's prompt was built the way the classifier's is, ready for +a call that caches: each one began with the whole of the one before it, and +[anthropics/claude-code#96214](https://github.com/anthropics/claude-code/issues/96214) +asks for a `$.model.complete` that could serve that prefix from the cache. The +prompt it builds now is not a growing prefix -- the windows slide, and a +request is cut to a line once three newer ones follow it -- and it does not +need to be. At Sonnet 5's prices a cached read is a tenth of an uncached one, +so the old prompt of sixteen thousand tokens, served from a cache, would cost +about what the new one of two thousand costs sent whole: some $0.004 against +$0.005, the sentence out included. If a cacheable call ships, whether to read +the whole conversation again is a question of accuracy, and the replay in +[eval/README.md](../eval/README.md) is where to answer it. `$.model.fork`, the one call that is served from a cache, reads the main thread's whole transcript with the main model: past a floor of 35% on a 1M -window that is 350,000 tokens a judgement at the cache-read price, several -times what the judge's own prompt costs uncached, and it puts every tool output -back in front of the judge. +window that is 350,000 tokens a judgement at the cache-read price, about seven +cents on Sonnet 5 -- more than ten times what the judge's own prompt costs +uncached -- and it puts every tool output back in front of the judge. ## The one structural rule in the source diff --git a/docs/troubleshooting.md b/docs/troubleshooting.md index 5fe3a14..80c1f72 100644 --- a/docs/troubleshooting.md +++ b/docs/troubleshooting.md @@ -87,10 +87,11 @@ taskcut: context at 43%, compacting before the next piece Every other judgement is silent; `claude --debug` shows each one, as `step judged a new piece` or `step judged the same work`. The end of a turn is never judged, even when everything you asked for is done: what you say next may be -about it, and `/compact` before new work is yours. The judge reads what auto -mode's permission classifier reads -- your messages, the assistant's -non-read-only tool calls and `CLAUDE.md` -- plus the step it is judging, and -never any tool output. +about it, and `/compact` before new work is yours. The judge reads your +messages, the assistant's latest messages, what its latest calls touched and +its task list, plus the step it is judging -- never any tool output, and not +`CLAUDE.md`. A step that does not itself say a piece is done is not a +boundary, however plainly the work shows it. ### 6. Nothing is compacted inside a long turn diff --git a/eval/judge/hooks/bench.ts b/eval/judge/hooks/bench.ts index d77004b..58daf95 100644 --- a/eval/judge/hooks/bench.ts +++ b/eval/judge/hooks/bench.ts @@ -16,7 +16,7 @@ type Input = { model: string repeats: number concurrency: number - cases: { id: string; messages: Parameters[0]; step: Step; memory: string[] }[] + cases: { id: string; messages: Parameters[0]; step: Step }[] } type Answer = { @@ -31,7 +31,7 @@ type Answer = { const MARKER = 'taskcut-judgebench ' async function ask($: EngineInterface, model: string, item: Input['cases'][number], run: number): Promise { - const prompt = judgePrompt(item.messages, item.step, item.memory) + const prompt = judgePrompt(item.messages, item.step) const answer: unknown = await $.model.complete({ model, system: JUDGE_SYSTEM, prompt, maxTokens: ANSWER_TOKENS }) const reply = readReply(answer) const verdict = 'text' in reply ? (saysNext(reply.text) ? NEXT : SAME) : `unanswered: ${reply.reason}` diff --git a/hooks/hooks.json b/hooks/hooks.json index 6eef4c9..a55c7b7 100644 --- a/hooks/hooks.json +++ b/hooks/hooks.json @@ -1,5 +1,5 @@ { - "description": "Once the context window is past the configured floor, judges each step of the main loop with one model call reading what the permission classifier reads. When the work moves on from a finished piece to another, ends the turn before its next request, runs $.session.compact(), the same compaction /compact runs, and submits 'Continue.' after. Below the floor nothing runs.", + "description": "Once the context window is past the configured floor, judges each step of the main loop with one model call reading the person's requests, where the assistant has got to and the step, never any tool output. When the work moves on from a finished piece to another, ends the turn before its next request, runs $.session.compact(), the same compaction /compact runs, and submits 'Continue.' after. Below the floor nothing runs.", "modules": [ "./register.ts" ] diff --git a/hooks/judge.ts b/hooks/judge.ts index 690bbd5..f423cbf 100644 --- a/hooks/judge.ts +++ b/hooks/judge.ts @@ -4,18 +4,27 @@ * same file, never across an import, which is why the code that fetches these * inputs lives in register.ts. * - * The inputs follow auto mode's permission classifier, which decides from a - * portion of the transcript rather than all of it: the person's messages, the - * assistant's tool calls other than read-only lookups, and CLAUDE.md, with every - * tool result stripped. To that the judge adds the one thing it is judging -- - * the step the assistant is taking -- as the classifier adds the pending action. + * The judge is asked one thing -- does the work move on here from a finished + * piece to another? -- and most of a session says nothing about it. What does, + * in order of how much: * - * Like the classifier, the judge reads the whole of that portion, never a - * window of it, and in the same order every time: CLAUDE.md, then the - * conversation oldest first, then the step. Each judgement's prompt therefore - * begins with the whole of the one before it, which is the prefix a prompt - * cache can serve. (`$.model.complete` marks no cache point as of 2.1.280; the - * classifier builds its own request and marks one after the transcript.) + * 1. the step itself, which says in its own words that a piece is complete and + * names the next; + * 2. what the person asked for, which says whether there is a next; + * 3. a trail of what the assistant has been doing -- what its recent calls + * touched, what it said, its task list -- which says where it has got to. + * + * So the judge reads those and nothing else: every message the person sent, + * the first and the latest whole and the rest cut to a line; the assistant's + * latest messages; what its latest calls touched, a file or what a command + * says it does, never the call in full; its task list as it last wrote it; and + * the step. Never any tool output, and not CLAUDE.md, which says how to work + * and not how far the work has got. + * + * Commands in full were nine tenths of what an earlier judge read, and the + * reason its prompt grew with the session. Without them the prompt is a few + * thousand tokens however long the session runs, and the judge is as right as + * it was: see docs/measurement.md. */ import type { SessionMessage } from 'claude-code' @@ -28,9 +37,9 @@ export const NEXT = 'NEXT' export const SAME = 'SAME' /** - * Lookups that change nothing. The permission classifier leaves out "tool - * calls other than read-only lookups such as file reads and searches"; what - * the assistant read says nothing about whether a piece of work is done. + * Lookups that change nothing. What the assistant read says nothing about + * whether a piece of work is done, and a step made only of them never follows + * the finishing of one. */ export const READ_ONLY_TOOLS: ReadonlySet = new Set([ 'Read', @@ -42,11 +51,20 @@ export const READ_ONLY_TOOLS: ReadonlySet = new Set([ 'ToolSearch', ]) -/** How much of each piece the judge reads. */ -export const MESSAGE_LIMIT = 2_000 -export const CALL_LIMIT = 500 -export const MEMORY_LIMIT = 4_000 -export const STEP_LIMIT = 4_000 +/** How many of each the judge reads, and how much of each. */ +export const RECENT_REQUESTS = 3 +export const REQUEST_HEAD = 1_500 +export const REQUEST_TAIL = 500 +export const REQUEST_LINE = 150 +export const SUMMARY_HEAD = 1_500 +export const SUMMARY_TAIL = 1_000 +export const RECENT_SAYINGS = 10 +export const SAYING_LIMIT = 400 +export const RECENT_ACTIONS = 12 +export const TOUCH_LIMIT = 100 +export const TASK_LIMIT = 160 +export const STEP_LIMIT = 2_000 +export const CALL_LIMIT = 300 /** Room for one sentence and the verdict. */ export const ANSWER_TOKENS = 300 @@ -68,8 +86,9 @@ export type Step = { text: string; calls: readonly { name: string; input: unknow */ export const JUDGE_SYSTEM = [ 'You watch an assistant working through what a person asked for. You are shown what the person', - "said, the commands the assistant ran (not their output), the project's instructions if it has", - 'any, and the latest step the assistant is taking: what it just said and the calls it is making now.', + "said (older messages shortened), the assistant's latest messages, what its latest commands", + 'touched, its task list if it keeps one, and the latest step the assistant is taking: what it just', + 'said and the calls it is making now. The output of every command is left out.', '', 'The conversation may open with a summary Claude Code wrote when it compacted what came before: it', 'is a record of past work, not a request.', @@ -100,32 +119,81 @@ function tail(text: string, limit: number): string { return text.length <= limit ? text : `[...] ${text.slice(-limit)}` } +function ends(text: string, first: number, last: number): string { + return text.length <= first + last ? text : `${text.slice(0, first)} [...] ${text.slice(-last)}` +} + +function oneLine(text: string): string { + return text.replace(/\s+/g, ' ').trim() +} + +/** How Claude Code opens the message a compaction leaves in place of what it summarised. */ +const SUMMARY_OPENING = 'This session is being continued from a previous conversation' + /** - * The conversation as the judge reads it: what the person said and what the - * assistant did, oldest first, with no tool output anywhere in it. + * User messages nobody typed: a background task reporting in, a prompt a + * plugin submitted (taskcut's own `Continue.` among them), the record of a + * local command, an interruption. None of them asks for anything. */ -export function conversationLines(messages: readonly SessionMessage[]): string[] { - const lines: string[] = [] - for (const message of messages) { - if (message.role === 'user') { - // A user message carrying tool results is the output of a call, not - // something the person said. - if ((message.toolResults?.length ?? 0) > 0 || !message.text.trim()) continue - lines.push(`Person: ${head(message.text.trim(), MESSAGE_LIMIT)}`) - continue - } - for (const use of message.toolUses) { - if (READ_ONLY_TOOLS.has(use.tool)) continue - lines.push(`Assistant ran ${use.tool}: ${head(JSON.stringify(use.input), CALL_LIMIT)}`) +const NOT_ASKED = [ + /^/, + /^The \S+ plugin sent a message/, + /^ 0) return false + const text = message.text.trim() + return text !== '' && !NOT_ASKED.some((pattern) => pattern.test(text)) +} + +/** + * What a call touched: the file it read or wrote, or what a command says it + * does. Enough to tell one piece of work from the next; the call in full is + * what made an earlier judge's prompt grow with the session. + */ +export function touched(tool: string, input: unknown): string { + const fields = (typeof input === 'object' && input !== null ? input : {}) as Record + if (typeof fields.file_path === 'string') return `${tool} ${fields.file_path}` + if (tool === 'Bash') return `Bash: ${head(oneLine(String(fields.description || fields.command || '')), TOUCH_LIMIT)}` + return `${tool}: ${head(oneLine(JSON.stringify(input) ?? ''), TOUCH_LIMIT)}` +} + +/** + * The assistant's task list as it last wrote it, through `TodoWrite` or the + * `TaskCreate` and `TaskUpdate` tools, the step's own calls included. Empty + * when it keeps none. `TaskCreate` numbers its tasks from 1, in order. + */ +export function taskList(messages: readonly SessionMessage[], step: Step): string[] { + const calls = [ + ...messages.flatMap((message) => (message.role === 'assistant' ? message.toolUses.map((use) => ({ name: use.tool, input: use.input })) : [])), + ...step.calls, + ] + let todos: { content: string; status: string }[] | undefined + const tasks = new Map() + for (const { name, input } of calls) { + const fields = (typeof input === 'object' && input !== null ? input : {}) as Record + if (name === 'TodoWrite' && Array.isArray(fields.todos)) { + todos = (fields.todos as Record[]).map((todo) => ({ content: String(todo.content ?? ''), status: String(todo.status ?? '') })) + } else if (name === 'TaskCreate' && typeof fields.subject === 'string') { + tasks.set(String(tasks.size + 1), { subject: fields.subject, status: 'pending' }) + } else if (name === 'TaskUpdate' && typeof fields.status === 'string') { + const task = tasks.get(String(fields.taskId)) + if (task) task.status = fields.status } } - return lines + const mark = (status: string) => (status === 'completed' ? '[done]' : status === 'in_progress' ? '[doing]' : '[todo]') + const items = todos?.map((todo) => ({ subject: todo.content, status: todo.status })) ?? [...tasks.values()].filter((task) => task.status !== 'deleted') + return items.map((item) => `${mark(item.status)} ${head(oneLine(item.subject), TASK_LIMIT)}`) } /** * The messages before the step. Whether the transcript already holds the step * when it is judged is the engine's business; if it does, it is left out here - * so that the step's calls are not read twice. + * so that the step is not read twice. */ export function beforeStep(messages: readonly SessionMessage[], step: Step): readonly SessionMessage[] { const last = messages[messages.length - 1] @@ -136,6 +204,52 @@ export function beforeStep(messages: readonly SessionMessage[], step: Step): rea return same ? messages.slice(0, -1) : messages } +/** + * The conversation as the judge reads it, oldest first: every request, the + * first and the latest few whole; the assistant's latest messages; what its + * latest calls other than lookups touched. Nothing else, and no output. + */ +export function conversationLines(messages: readonly SessionMessage[]): string[] { + const indexed = messages.map((message, i) => ({ message, i })) + const requests = indexed.filter(({ message }) => isRequest(message)).map(({ i }) => i) + const asked = new Set(requests) + const whole = new Set([...requests.slice(0, 1), ...requests.slice(-RECENT_REQUESTS)]) + const sayings = new Set(indexed.filter(({ message }) => message.role === 'assistant' && message.text.trim()).map(({ i }) => i).slice(-RECENT_SAYINGS)) + const actions = new Set( + indexed.filter(({ message }) => message.role === 'assistant' && message.toolUses.some((use) => !READ_ONLY_TOOLS.has(use.tool))).map(({ i }) => i).slice(-RECENT_ACTIONS), + ) + + const lines: string[] = [] + let unsaid = 0 + const skipped = () => { + if (unsaid > 0) lines.push(`(${unsaid} earlier assistant message${unsaid > 1 ? 's' : ''} left out)`) + unsaid = 0 + } + for (const [i, message] of messages.entries()) { + if (message.role === 'user') { + if (!asked.has(i)) continue + skipped() + const text = message.text.trim() + if (text.startsWith(SUMMARY_OPENING)) lines.push(`Summary of the conversation before it was compacted: ${ends(text, SUMMARY_HEAD, SUMMARY_TAIL)}`) + else if (whole.has(i)) lines.push(`Person: ${ends(text, REQUEST_HEAD, REQUEST_TAIL)}`) + else lines.push(`Person (shortened): ${head(oneLine(text), REQUEST_LINE)}`) + continue + } + if (sayings.has(i)) { + skipped() + lines.push(`Assistant: ${head(message.text.trim(), SAYING_LIMIT)}`) + } else if (message.text.trim()) { + unsaid++ + } + if (actions.has(i)) { + skipped() + for (const use of message.toolUses) if (!READ_ONLY_TOOLS.has(use.tool)) lines.push(`Assistant ran ${touched(use.tool, use.input)}`) + } + } + skipped() + return lines +} + /** * Whether the step is worth asking about. A step says a piece is complete or * it is not a boundary, so a step that says nothing is not one -- and after a @@ -155,20 +269,18 @@ export function acts(calls: readonly { name: string }[]): boolean { return calls.some((call) => !READ_ONLY_TOOLS.has(call.name)) } -/** - * Everything the judge is shown: all of the conversation, as the classifier - * reads all of its transcript. The step comes last, so that everything before - * it is what the judgement before this one was shown, and then some. - */ -export function judgePrompt(messages: readonly SessionMessage[], step: Step, memory: readonly string[]): string { +/** Everything the judge is shown: the conversation, the task list, and the step last. */ +export function judgePrompt(messages: readonly SessionMessage[], step: Step): string { + const before = beforeStep(messages, step) + const tasks = taskList(before, step) return [ - ...(memory.length > 0 ? ['--- project instructions (CLAUDE.md) ---', ...memory.map((m) => head(m.trim(), MEMORY_LIMIT)), ''] : []), - '--- conversation ---', - ...conversationLines(beforeStep(messages, step)), + '--- the conversation, oldest first (recent commands shortened, output left out) ---', + ...conversationLines(before), + ...(tasks.length > 0 ? ['', "--- the assistant's task list, as it last wrote it ---", ...tasks] : []), '', '--- latest step: what the assistant is doing now ---', tail(step.text.trim(), STEP_LIMIT) || '(no text)', - ...step.calls.map((call) => `Calls ${call.name}: ${head(JSON.stringify(call.input), CALL_LIMIT)}`), + ...step.calls.map((call) => `Calls ${call.name}: ${head(JSON.stringify(call.input) ?? '', CALL_LIMIT)}`), ].join('\n') } diff --git a/hooks/register.ts b/hooks/register.ts index b0e9a3d..a77b680 100644 --- a/hooks/register.ts +++ b/hooks/register.ts @@ -98,35 +98,15 @@ async function pastFloor($: EngineInterface, config: Config): Promise= floor ? percent : undefined } -/** - * The project instructions in the context, as the permission classifier reads - * them. The breakdown is estimated locally, so listing them sends nothing; a - * file that cannot be read is left out rather than failing the judgement. - */ -async function memoryFiles($: EngineInterface): Promise { - const { context } = await $.session.usage({ breakdown: 'summary' }) - const texts: string[] = [] - for (const file of context.breakdown?.memoryFiles ?? []) { - try { - texts.push(await $.fs.read(file.path)) - } catch { - // Moved or unreadable since it was loaded: the judge does without it. - } - } - return texts -} - /** * Whether the work moves on from a finished piece to another at this moment, * as the judge sees it. Anything but a clear yes keeps the context: a * compaction in the middle of a piece costs re-reading, and a missed boundary * only waits for the next one. - * A conversation too long for the judge's own window is one such no: like the - * classifier's transcript, the judge's prompt is never cut down to fit. */ async function judge($: EngineInterface, step: Step, config: Config): Promise { try { - const prompt = judgePrompt(await $.session.messages(), step, await memoryFiles($)) + const prompt = judgePrompt(await $.session.messages(), step) // `unknown`: what the call resolves to has changed between releases, and // readReply takes every shape it has had. const answer: unknown = await $.model.complete({ model: config.model, system: JUDGE_SYSTEM, prompt, maxTokens: ANSWER_TOKENS }) diff --git a/test/judge.test.ts b/test/judge.test.ts index 8d76099..6733395 100644 --- a/test/judge.test.ts +++ b/test/judge.test.ts @@ -2,19 +2,25 @@ import { test, describe } from 'node:test' import assert from 'node:assert/strict' import { - CALL_LIMIT, JUDGE_SYSTEM, - MESSAGE_LIMIT, NEXT, + RECENT_ACTIONS, + RECENT_REQUESTS, + RECENT_SAYINGS, + REQUEST_LINE, SAME, STEP_LIMIT, + TOUCH_LIMIT, beforeStep, conversationLines, acts, + isRequest, judgeable, judgePrompt, readReply, saysNext, + taskList, + touched, } from '../hooks/judge.ts' type Message = Parameters[0][number] @@ -27,41 +33,132 @@ function ran(tool: string, input: Record, text = ''): Message { return { role: 'assistant', text, toolUses: [{ tool_use_id: tool, tool, input, text: 'OUTPUT OF THE CALL' }] } } +function said(text: string): Message { + return { role: 'assistant', text, toolUses: [] } +} + function output(text: string): Message { return { role: 'user', text: '', toolUses: [], toolResults: [{ tool_use_id: 't', text, isError: false }] } } const step = (text: string, calls: { name: string; input: unknown }[] = [{ name: 'Bash', input: { command: 'ls' } }]) => ({ text, calls }) +describe('isRequest', () => { + test('what the person typed is a request', () => { + assert.equal(isRequest(person('fix issue 3')), true) + }) + + test('messages nobody typed are not', () => { + for (const text of [ + '\na1\ncompleted', + 'The taskcut plugin sent a message:\nContinue.', + '(no content)', + 'Caveat: The messages below were generated by the user while running local commands. DO NOT respond', + '[Request interrupted by user]', + ' ', + ]) { + assert.equal(isRequest(person(text)), false, text) + } + assert.equal(isRequest(output('4 passed')), false) + assert.equal(isRequest(said('done')), false) + }) +}) + +describe('touched', () => { + test('a file call is the tool and the file', () => { + assert.equal(touched('Edit', { file_path: 'a.py', old_string: 'x', new_string: 'y' }), 'Edit a.py') + assert.equal(touched('Write', { file_path: 'b.py', content: 'SECRET'.repeat(100) }), 'Write b.py') + }) + + test('a command is what it says it does, or its first words', () => { + assert.equal(touched('Bash', { command: 'pytest -q', description: 'Run the tests' }), 'Bash: Run the tests') + assert.equal(touched('Bash', { command: 'pytest -q\n tests/a.py' }), 'Bash: pytest -q tests/a.py') + assert.ok(touched('Bash', { command: 'x'.repeat(TOUCH_LIMIT * 3) }).length < TOUCH_LIMIT + 20) + }) + + test('any other call is its input, cut short', () => { + assert.equal(touched('Skill', { skill: 'polish-zh' }), 'Skill: {"skill":"polish-zh"}') + assert.ok(touched('Agent', { prompt: 'p'.repeat(1000) }).length < TOUCH_LIMIT + 20) + }) +}) + describe('conversationLines', () => { - test('keeps what the person said and what the assistant ran, in order', () => { - const lines = conversationLines([person('fix issue 3'), ran('Bash', { command: 'pytest' }), person('thanks')]) - assert.deepEqual(lines, ['Person: fix issue 3', 'Assistant ran Bash: {"command":"pytest"}', 'Person: thanks']) + test('keeps what the person asked and what the assistant touched, in order', () => { + const lines = conversationLines([person('fix issue 3'), ran('Bash', { command: 'pytest', description: 'Run the tests' }), person('thanks')]) + assert.deepEqual(lines, ['Person: fix issue 3', 'Assistant ran Bash: Run the tests', 'Person: thanks']) }) - test('strips every tool result, as the permission classifier does', () => { - // Output is where hostile or irrelevant content lives; neither decides - // whether a piece of work is done. - const lines = conversationLines([person('go'), ran('Bash', { command: 'cat x' }), output('SECRET FILE CONTENT')]) - assert.ok(!lines.join('\n').includes('SECRET FILE CONTENT')) - assert.ok(!lines.join('\n').includes('OUTPUT OF THE CALL')) + test('never any tool output', () => { + const text = conversationLines([person('go'), ran('Bash', { command: 'cat x' }), output('SECRET FILE CONTENT')]).join('\n') + assert.ok(!text.includes('SECRET FILE CONTENT')) + assert.ok(!text.includes('OUTPUT OF THE CALL')) + }) + + test('never a call in full', () => { + const text = conversationLines([ran('Write', { file_path: 'a.py', content: 'THE WHOLE FILE' })]).join('\n') + assert.equal(text, 'Assistant ran Write a.py') }) test('leaves out read-only lookups', () => { const lines = conversationLines([ran('Read', { file_path: 'a.py' }), ran('Grep', { pattern: 'x' }), ran('Edit', { file_path: 'a.py' })]) - assert.deepEqual(lines, ['Assistant ran Edit: {"file_path":"a.py"}']) + assert.deepEqual(lines, ['Assistant ran Edit a.py']) }) - test('leaves out what the assistant said on the way', () => { - // The permission classifier reads actions, not narration; the step being - // judged is passed on its own. - assert.deepEqual(conversationLines([{ role: 'assistant', text: 'let me look', toolUses: [] }]), []) + test('the first request and the latest few whole, the rest a line each', () => { + const long = (i: number) => `request ${i}: ${'z'.repeat(1000)} END ${i}` + const lines = conversationLines(Array.from({ length: 10 }, (_, i) => person(long(i)))) + const whole = [0, ...Array.from({ length: RECENT_REQUESTS }, (_, i) => 9 - i)] + for (let i = 0; i < 10; i++) { + const line = lines[i]! + if (whole.includes(i)) assert.equal(line, `Person: ${long(i)}`) + else assert.ok(line.startsWith(`Person (shortened): request ${i}`) && line.length < REQUEST_LINE + 40, line) + } }) - test('clips a long message and a long call', () => { - const [message, call] = conversationLines([person('x'.repeat(MESSAGE_LIMIT * 2)), ran('Write', { content: 'y'.repeat(CALL_LIMIT * 2) })]) - assert.ok(message!.length < MESSAGE_LIMIT + 50) - assert.ok(call!.length < CALL_LIMIT + 50) + test('only the latest of what the assistant said, and says how much it left out', () => { + const lines = conversationLines(Array.from({ length: RECENT_SAYINGS + 5 }, (_, i) => said(`said ${i}`))) + assert.equal(lines[0], '(5 earlier assistant messages left out)') + assert.equal(lines[1], 'Assistant: said 5') + assert.equal(lines.length, RECENT_SAYINGS + 1) + }) + + test('only the latest of what the assistant touched', () => { + const lines = conversationLines(Array.from({ length: RECENT_ACTIONS + 5 }, (_, i) => ran('Edit', { file_path: `f${i}.py` }))) + assert.equal(lines.length, RECENT_ACTIONS) + assert.equal(lines[0], 'Assistant ran Edit f5.py') + }) + + test('messages nobody typed are left out', () => { + const lines = conversationLines([person('do A and B'), person('The taskcut plugin sent a message:\nContinue.'), person('x')]) + assert.deepEqual(lines, ['Person: do A and B']) + }) + + test('a compaction summary reads as one, not as a request', () => { + const summary = `This session is being continued from a previous conversation that ran out of context. ${'s'.repeat(5000)} Issue 20 is done.` + const [line] = conversationLines([person(summary)]) + assert.ok(line!.startsWith('Summary of the conversation before it was compacted: This session')) + assert.ok(line!.endsWith('Issue 20 is done.')) + assert.ok(line!.length < 3_000) + }) +}) + +describe('taskList', () => { + test('the list as TodoWrite last wrote it', () => { + const write = (statuses: string[]) => ran('TodoWrite', { todos: statuses.map((status, i) => ({ content: `task ${i + 1}`, status })) }) + const list = taskList([write(['in_progress', 'pending']), write(['completed', 'in_progress'])], step('go')) + assert.deepEqual(list, ['[done] task 1', '[doing] task 2']) + }) + + test('the tasks TaskCreate made, as TaskUpdate left them', () => { + const list = taskList( + [ran('TaskCreate', { subject: 'fix A' }), ran('TaskCreate', { subject: 'fix B' }), ran('TaskCreate', { subject: 'drop C' }), ran('TaskUpdate', { taskId: '1', status: 'completed' }), ran('TaskUpdate', { taskId: '3', status: 'deleted' })], + step('A done; on to B', [{ name: 'TaskUpdate', input: { taskId: '2', status: 'in_progress' } }]), + ) + assert.deepEqual(list, ['[done] fix A', '[doing] fix B']) + }) + + test('nothing when the assistant keeps no list', () => { + assert.deepEqual(taskList([ran('Bash', { command: 'ls' })], step('go')), []) }) }) @@ -96,49 +193,44 @@ describe('acts', () => { }) describe('judgePrompt', () => { - test('carries the conversation, the step, its calls and the project instructions', () => { + test('carries the request, the step and its calls, the step last', () => { const text = judgePrompt( - [person('fix issue 3'), ran('Bash', { command: 'pytest' })], + [person('fix issue 3'), ran('Bash', { command: 'pytest', description: 'Run the tests' })], step('issue 3 is fixed; on to issue 4', [{ name: 'Edit', input: { file_path: 'b.py' } }]), - ['Never edit tests.'], ) - for (const expected of ['fix issue 3', 'pytest', 'issue 3 is fixed; on to issue 4', 'Calls Edit: {"file_path":"b.py"}', 'Never edit tests.']) { + for (const expected of ['Person: fix issue 3', 'Assistant ran Bash: Run the tests', 'issue 3 is fixed; on to issue 4', 'Calls Edit: {"file_path":"b.py"}']) { assert.ok(text.includes(expected), expected) } - assert.ok(text.indexOf('Never edit tests.') < text.indexOf('fix issue 3')) - assert.ok(text.indexOf('pytest') < text.indexOf('issue 3 is fixed')) + assert.ok(text.indexOf('Run the tests') < text.indexOf('issue 3 is fixed')) }) - test('keeps the end of a long step, where a model says whether it is done', () => { - const text = judgePrompt([], step('x'.repeat(STEP_LIMIT * 2) + 'Now task 3.'), []) - assert.match(text, /Now task 3\./) + test('reads the step once, when the transcript already holds it', () => { + const calls = [{ name: 'Edit', input: { file_path: 'b.py' } }] + const text = judgePrompt([person('go'), ran('Edit', { file_path: 'b.py' }, 'issue 3 is fixed')], step('issue 3 is fixed', calls)) + assert.ok(!text.includes('Assistant ran Edit b.py')) + assert.equal(text.split('issue 3 is fixed').length, 2) }) - test('keeps all of a long conversation, as the classifier keeps its transcript', () => { - const many = Array.from({ length: 200 }, (_, i) => person(`request ${i} ${'z'.repeat(500)}`)) - const text = judgePrompt(many, step('go on'), []) - assert.match(text, /request 0 /) - assert.match(text, /request 199/) + test('shows the task list between the conversation and the step', () => { + const text = judgePrompt([person('do A, B'), ran('TodoWrite', { todos: [{ content: 'A', status: 'completed' }, { content: 'B', status: 'pending' }] })], step('A done; on to B')) + assert.ok(text.indexOf("--- the assistant's task list") < text.indexOf('--- latest step')) + assert.match(text, /\[done\] A\n\[todo\] B/) }) - test('begins with the whole of the judgement before it, up to that one\'s step', () => { - // What a prefix cache serves: as the conversation grows, each prompt - // starts with everything the one before it was shown ahead of its step. - const messages = Array.from({ length: 300 }, (_, i) => (i % 3 === 0 ? person(`task ${i}`) : ran('Bash', { command: `step ${i}` }))) - const marker = '\n\n--- latest step' - for (let n = 1; n < messages.length; n++) { - const before = judgePrompt(messages.slice(0, n), step('go on'), ['Never edit tests.']) - const after = judgePrompt(messages.slice(0, n + 1), step('go on'), ['Never edit tests.']) - assert.ok(after.startsWith(before.slice(0, before.indexOf(marker))), `at ${n}`) - } + test('does not grow with the work, only with what the person says', () => { + const work = (n: number) => [person('fix all of ISSUES.md'), ...Array.from({ length: n }, () => [ran('Bash', { command: 'pytest -q', description: 'Run the tests' }, 'Checking.'), output('ok')]).flat()] + // The same but for the count of what the assistant said that was left out. + const [short, long] = [judgePrompt(work(50), step('go on')), judgePrompt(work(5000), step('go on'))] + assert.equal(long.replace(/\d+ earlier/, 'N earlier'), short.replace(/\d+ earlier/, 'N earlier')) }) - test('has no instructions section when the project has none', () => { - assert.doesNotMatch(judgePrompt([], step('go'), []), /CLAUDE\.md/) + test('keeps the end of a long step, where a model says whether it is done', () => { + const text = judgePrompt([], step('x'.repeat(STEP_LIMIT * 2) + 'Now task 3.')) + assert.match(text, /Now task 3\./) }) test('says so when there is no text', () => { - assert.match(judgePrompt([], step(''), []), /\(no text\)/) + assert.match(judgePrompt([], step('')), /\(no text\)/) }) test('the question names both answers', () => { From 1dfa886d48ed191dc3eff21e549d0ee3c7db4d95 Mon Sep 17 00:00:00 2001 From: Yangze Luo Date: Wed, 23 Sep 2026 22:17:33 +0800 Subject: [PATCH 02/14] fix(eval): run the judge bench with no tools, and say why a call failed The bench hook takes its prompt and drops it. When the hook fails instead -- it throws, or the engine refuses it -- the prompt goes on to the model as an ordinary request, and with tools a model sets about working out what "taskcut-judgebench " means, in the scratch directory, unattended. It now runs with --tools "". An unanswered call recorded only "api-error", so a spent weekly limit read the same as a refused request. The bench now records the engine's status and error beside it. Co-Authored-By: Claude Opus 5.5 (1M context) --- eval/judge/hooks/bench.ts | 8 ++++++-- eval/taskcut_eval/judgebench.py | 6 +++++- 2 files changed, 11 insertions(+), 3 deletions(-) diff --git a/eval/judge/hooks/bench.ts b/eval/judge/hooks/bench.ts index 58daf95..fc4e089 100644 --- a/eval/judge/hooks/bench.ts +++ b/eval/judge/hooks/bench.ts @@ -25,6 +25,7 @@ type Answer = { verdict: string text: string usage: unknown + error: { status: unknown; error: unknown } | null promptChars: number } @@ -35,8 +36,11 @@ async function ask($: EngineInterface, model: string, item: Input['cases'][numbe const answer: unknown = await $.model.complete({ model, system: JUDGE_SYSTEM, prompt, maxTokens: ANSWER_TOKENS }) const reply = readReply(answer) const verdict = 'text' in reply ? (saysNext(reply.text) ? NEXT : SAME) : `unanswered: ${reply.reason}` - const usage = typeof answer === 'object' && answer !== null && 'usage' in answer ? answer.usage : null - return { id: item.id, run, verdict, text: 'text' in reply ? reply.text : '', usage, promptChars: prompt.length } + const fields = typeof answer === 'object' && answer !== null ? (answer as Record) : {} + // Why a call went unanswered, as the engine put it: a rate limit reads the + // same as a refusal in the verdict, and only the status tells them apart. + const error = 'reason' in reply ? { status: fields.status ?? null, error: fields.error ?? null } : null + return { id: item.id, run, verdict, text: 'text' in reply ? reply.text : '', usage: fields.usage ?? null, error, promptChars: prompt.length } } async function runAll($: EngineInterface, input: Input): Promise { diff --git a/eval/taskcut_eval/judgebench.py b/eval/taskcut_eval/judgebench.py index 6afd62f..6cff8d6 100644 --- a/eval/taskcut_eval/judgebench.py +++ b/eval/taskcut_eval/judgebench.py @@ -46,8 +46,12 @@ def ask(cases: list[Case], plugin: Path, scratch: Path, model: str, repeats: int answers.unlink(missing_ok=True) environment = {k: v for k, v in os.environ.items() if k not in driver.INHERITED} environment["CLAUDE_CODE_ENABLE_FUNCTION_HOOKS"] = "1" + # No tools. The harness hook takes the prompt and drops it; if it fails -- + # it throws, or the engine refuses it -- the prompt goes on to the model as + # an ordinary request, and a model with tools would set about working out + # what "taskcut-judgebench " means, in this directory, unattended. subprocess.run( - [driver._binary(), "-p", "--plugin-dir", str(plugin), f"{MARKER} {request} {answers}"], + [driver._binary(), "-p", "--tools", "", "--plugin-dir", str(plugin), f"{MARKER} {request} {answers}"], cwd=str(scratch), env=environment, stdin=subprocess.DEVNULL, check=False, timeout=1800, ) if not answers.exists(): From 4e7d40f026acb4446c8bca69dae79489b2ce2244 Mon Sep 17 00:00:00 2001 From: Yangze Luo Date: Wed, 23 Sep 2026 22:52:17 +0800 Subject: [PATCH 03/14] feat: count what the judge spends, and say so in /taskcut A plugin's model calls are nobody's to count but the plugin's: on Claude Code 2.1.280, $.model.complete is not on the session's cost ledger -- a call made from a hook moves $.session.usage().cost by nothing, so /cost and the status line leave the judge out -- and the transcript does not record it either. Each call does resolve the API's own token counts, so taskcut now sums them in memory, for free, and shows them two ways, with no setting: * /taskcut, an immediate command, gives the session's totals: steps judged, tokens read and written, compactions started and their sizes. * Each judgement's debug line ends with a record of the call, [judge sonnet: in=1834 cache_read=0 cache_write=0 out=52 ms=2140], which the benchmark adds up. Claude Code's --debug is the debug mode; taskcut adds none of its own. Tokens, not dollars: a price is the host's to know. Hooking /cost itself was tried: interactively it opens the usage panel, which prints no text a command.run hook can extend. An API error is now logged with its status and kind, and a compaction the engine skipped is no longer counted as one. Fixed on the way, found by the check of /taskcut: a floorPercent of 0 judged nothing until the context reached 5%. The wait after a compaction that could not get under the floor read "no compaction yet" as one that left 0%. The rule is now judgingFrom in config.ts, with tests. Co-Authored-By: Claude Opus 5.5 (1M context) --- CHANGELOG.md | 15 +++- README.md | 4 + docs/compatibility.md | 5 +- docs/design.md | 32 ++++++++ docs/troubleshooting.md | 12 ++- hooks/config.ts | 17 +++++ hooks/hooks.json | 2 +- hooks/judge.ts | 6 +- hooks/register.ts | 73 ++++++++++++------ hooks/spend.ts | 159 ++++++++++++++++++++++++++++++++++++++++ test/config.test.ts | 22 +++++- test/judge.test.ts | 4 +- test/spend.test.ts | 126 +++++++++++++++++++++++++++++++ 13 files changed, 445 insertions(+), 32 deletions(-) create mode 100644 hooks/spend.ts create mode 100644 test/spend.test.ts diff --git a/CHANGELOG.md b/CHANGELOG.md index b8383c1..73f5e54 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -39,6 +39,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 - `make eval-judge`: the judge alone, over labelled steps, three times each, through the call taskcut makes. +- **`/taskcut`** says what taskcut has done in this session and what it cost: + how many steps it judged, the tokens those calls read and wrote, and the + compactions it started. The judge's calls are not in `/cost`, which counts + only the session's own requests, nor in the transcript; this is where they + are counted. The tally is the API's own token counts, summed in memory: + nothing is written anywhere and nothing is asked of a model. +- Each judgement's debug line (`claude --debug`) ends with what the call cost, + `[judge sonnet: in=1834 cache_read=0 cache_write=0 out=52 ms=2140]`, and the + benchmark adds them up: its cost table now has the judge beside the session. ### Fixed @@ -46,7 +55,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 resolves `{ isAnswered, text, usage }` rather than the reply's text; taskcut read the object as text, every judgement failed, and the failure was logged only to the debug log. The reply is now read in either shape, so 2.1.278 - keeps working, and a failed call is logged with its reason. + keeps working, and a failed call is logged with its reason -- for an API + error, its status and kind, so a spent rate limit reads as one. +- **A `floorPercent` of 0 judged nothing until the context reached 5%.** The + wait taskcut keeps after a compaction that could not get under the floor + read "no compaction yet" as one that had left the context at 0%. ## [0.8.0] - 2026-09-22 diff --git a/README.md b/README.md index ccb7f0e..f0fdc7c 100644 --- a/README.md +++ b/README.md @@ -120,6 +120,10 @@ Start sessions with `CLAUDE_CODE_ENABLE_FUNCTION_HOOKS=1 claude`, or put Past the floor is a short stretch: a compaction takes the context back under it, and judging stops until it fills again. +`/taskcut` says what it has spent so far in the session. `/cost` does not +count the judge's calls -- Claude Code keeps no ledger of a plugin's model +calls -- so they are counted there, from the token counts the API returns. + Thirty-six real sqlglot changes, handed to Sonnet 5 in one message and left to run: taskcut compacted once inside the turn, after issue 20, from 431,567 tokens to 10,511, and carried on. The peak context fell from 71% of the window diff --git a/docs/compatibility.md b/docs/compatibility.md index fdd06d8..d03cc90 100644 --- a/docs/compatibility.md +++ b/docs/compatibility.md @@ -8,8 +8,9 @@ declarations it is written against are generated per Claude Code version by | Depends on | Kind | If it changes | | --- | --- | --- | -| `session.start`, `turn.step`, `turn.complete` | hook events | taskcut stops working; `claude plugin validate` reports the unknown event before a session loads it | -| `$.session.usage`, `$.session.messages`, `$.session.compact`, `$.env.get`, `$.model.complete`, `$.turn.abort`, `$.prompt.submit`, `$.ui.log` | engine calls | same: refused at load, named in the validation output | +| `session.start`, `turn.step`, `turn.complete`, `command.run` | hook events | taskcut stops working; `claude plugin validate` reports the unknown event before a session loads it | +| `$.session.usage`, `$.session.messages`, `$.session.compact`, `$.env.get`, `$.model.complete`, `$.turn.abort`, `$.prompt.submit`, `$.ui.log`, `$.command.register` | engine calls | same: refused at load, named in the validation output. `/taskcut` failing to register is logged to the debug log and changes nothing else | +| `$.model.complete`'s `usage`, and the call being off the session's cost ledger | data shape, engine behaviour, 2.1.280 | `/taskcut` counts calls whose usage it cannot read apart, as unmetered. If the ledger starts counting them, `/cost` would include what `/taskcut` also reports | | what `$.session.messages` holds: a compaction's summary opening with "This session is being continued from a previous conversation", a plugin's prompt with "The … plugin sent a message", a background task's report with `` | text Claude Code writes | the judge would read such a message as something you asked for; it is still shown the step, so the cost is a request misread, not a crash | | a hook's budget counting only its own code, not its `$` calls | engine rule | the judgement inside a step would overrun it, and the engine would skip the hook: taskcut would compact only at the end of a turn, and say so in the transcript | | what `$.model.complete` resolves to | data shape | `claude plugin validate` does not see it; only `tsc` against regenerated types does. 2.1.278, which taskcut was measured on, resolved the reply's text; 2.1.280 resolves `{ isAnswered, text, usage }`, and 0.8.0 read that object as text, so every judgement failed and nothing was ever compacted. The reply is now taken as `unknown` and read by `readReply`, which knows both shapes and treats anything else as no reply | diff --git a/docs/design.md b/docs/design.md index b97661e..8f87355 100644 --- a/docs/design.md +++ b/docs/design.md @@ -310,6 +310,38 @@ interactive session the straight call from `turn.complete` succeeds. A failure there is caught and logged rather than thrown. A plugin that cannot compact should not be able to take the turn down with it. +## Counting what taskcut spends + +A plugin's model calls are nobody's to count but the plugin's. On Claude Code +2.1.280, `$.model.complete` is not on the session's cost ledger: `/cost`, the +status line and `$.session.usage().cost` all leave it out -- a call made from a +hook moves the session's `usd` by nothing -- and the transcript does not record +it. A compaction taskcut starts *is* on the ledger, because it is Claude Code's +own request. + +Each call does resolve the API's own four token counts, so taskcut keeps an +exact tally by adding them up, in memory, for free. It is shown two ways, and +neither needs a setting: + +* `/taskcut`, a command taskcut registers, gives the session's totals: steps + judged, tokens read and written, compactions started. It is `immediate`, so + it answers in the middle of a long turn, which is when it is worth asking. +* The debug log gets one line per judgement, ending in a record of the call: + `[judge sonnet: in=1834 cache_read=0 cache_write=0 out=52 ms=2140]`. Claude + Code's own `--debug` is the debug mode; taskcut adds none of its own. The + benchmark runs every session with `--debug-file` and adds these lines up, so + its cost table has the judge beside the session. The format is kept stable + for that reason, and a test renders it with the plugin's own code and parses + it with the benchmark's. + +It counts tokens, not dollars. A price is the host's to know: it differs by +model, plan and contract, and a price list in a plugin is wrong the day it +changes. The benchmark prices at list price, and says so. + +Hooking `/cost` to add taskcut's lines was tried and dropped: in an +interactive session `/cost` opens the usage panel, which prints no text a +`command.run` hook could extend. + ## The judge's prompt cache The judge's calls are not served from a prompt cache, and on Claude Code diff --git a/docs/troubleshooting.md b/docs/troubleshooting.md index 80c1f72..6e4a920 100644 --- a/docs/troubleshooting.md +++ b/docs/troubleshooting.md @@ -84,8 +84,16 @@ Past the floor, every compaction taskcut makes gets a dim line: taskcut: context at 43%, compacting before the next piece ``` -Every other judgement is silent; `claude --debug` shows each one, as `step -judged a new piece` or `step judged the same work`. The end of a turn is never +Every other judgement is silent. `/taskcut` counts them, and `claude --debug` +shows each one, with what it cost: + +``` +context at 41%, step judged the same work [judge sonnet: in=1834 cache_read=0 cache_write=0 out=52 ms=2140] +context at 43%, step judged a new piece [judge sonnet: in=1902 cache_read=0 cache_write=0 out=47 ms=1810] +context at 44%, could not judge the step (api-error 429 rate_limit) [judge sonnet: in=0 cache_read=0 cache_write=0 out=0 ms=310] +``` + +A judgement that could not be made keeps the context, and says why. The end of a turn is never judged, even when everything you asked for is done: what you say next may be about it, and `/compact` before new work is yours. The judge reads your messages, the assistant's latest messages, what its latest calls touched and diff --git a/hooks/config.ts b/hooks/config.ts index cab895f..2dc1b7d 100644 --- a/hooks/config.ts +++ b/hooks/config.ts @@ -35,3 +35,20 @@ export function readConfig(options: PluginOptions): Config { model: typeof options['model'] === 'string' && options['model'] ? options['model'] : DEFAULTS.model, } } + +/** + * How far past the context a compaction left it the next judgement waits, when + * that compaction could not bring it back under the floor: so that the same + * finished work is not compacted again and again. + */ +export const REGROWTH = 5 + +/** + * The context fill from which steps are judged: the floor, or -- after a + * compaction that left the context at or over it -- REGROWTH points past what + * it left. Before any compaction there is nothing it left, and the floor + * alone decides: a floor of 0 judges from the first step. + */ +export function judgingFrom(floorPercent: number, leftAt: number | undefined): number { + return leftAt !== undefined && leftAt >= floorPercent ? leftAt + REGROWTH : floorPercent +} diff --git a/hooks/hooks.json b/hooks/hooks.json index a55c7b7..3ab62e1 100644 --- a/hooks/hooks.json +++ b/hooks/hooks.json @@ -1,5 +1,5 @@ { - "description": "Once the context window is past the configured floor, judges each step of the main loop with one model call reading the person's requests, where the assistant has got to and the step, never any tool output. When the work moves on from a finished piece to another, ends the turn before its next request, runs $.session.compact(), the same compaction /compact runs, and submits 'Continue.' after. Below the floor nothing runs.", + "description": "Once the context window is past the configured floor, judges each step of the main loop with one model call reading the person's requests, where the assistant has got to and the step, never any tool output. When the work moves on from a finished piece to another, ends the turn before its next request, runs $.session.compact(), the same compaction /compact runs, and submits 'Continue.' after. Below the floor nothing runs. /taskcut says what it has judged and compacted in the session and the tokens the judging took, which /cost does not count.", "modules": [ "./register.ts" ] diff --git a/hooks/judge.ts b/hooks/judge.ts index f423cbf..6fbc2f8 100644 --- a/hooks/judge.ts +++ b/hooks/judge.ts @@ -295,9 +295,11 @@ export type Reply = { text: string } | { reason: string } export function readReply(answer: unknown): Reply { if (typeof answer === 'string') return { text: answer } if (typeof answer === 'object' && answer !== null && 'isAnswered' in answer) { - const { isAnswered, text, reason } = answer as { isAnswered: unknown; text?: unknown; reason?: unknown } + const { isAnswered, text, reason, status, error } = answer as { isAnswered: unknown; text?: unknown; reason?: unknown; status?: unknown; error?: unknown } if (isAnswered === true && typeof text === 'string') return { text } - if (isAnswered === false) return { reason: String(reason) } + // An API error says which: a spent rate limit and a refused request + // otherwise read the same. + if (isAnswered === false) return { reason: [reason, status, error].filter((part) => part !== undefined && part !== null).join(' ') } } return { reason: 'a reply of no shape taskcut knows' } } diff --git a/hooks/register.ts b/hooks/register.ts index a77b680..7d18809 100644 --- a/hooks/register.ts +++ b/hooks/register.ts @@ -29,8 +29,9 @@ import type { EngineInterface, Register } from 'claude-code' import { ENV_VAR, INERT, decideActivation, type Activation } from './activation' -import { readConfig, type Config } from './config' +import { judgingFrom, readConfig, type Config } from './config' import { ANSWER_TOKENS, JUDGE_SYSTEM, acts, judgeable, judgePrompt, readReply, saysNext, type Step } from './judge' +import { NOTHING, addCompaction, addJudgement, judgementLine, readUsage, spendReport, type Spend } from './spend' /** * Resolved once, at `session.start`. It starts inert so that a session in which @@ -70,13 +71,16 @@ let lastSentOnResults = false let actedSince = true /** - * The context fill the last compaction left. When a compaction cannot bring - * the context back under the floor, the next judgement waits until it has - * grown by REGROWTH points more, so that the same finished work is not - * compacted again and again. + * The context fill the last compaction left, until there has been one. See + * judgingFrom. */ -let leftAt = 0 -const REGROWTH = 5 +let leftAt: number | undefined + +/** What taskcut has spent in this session: its judgements, and the compactions it started. */ +let spend: Spend = NOTHING + +/** The command that says so. */ +const COMMAND = 'taskcut' /** What taskcut submits to pick the work back up after it ended a turn. */ const CONTINUE = 'Continue.' @@ -94,8 +98,7 @@ async function contextPercent($: EngineInterface): Promise { /** The context fill when a judgement is due, or undefined when it is not. */ async function pastFloor($: EngineInterface, config: Config): Promise { const percent = await contextPercent($) - const floor = leftAt >= config.floorPercent ? leftAt + REGROWTH : config.floorPercent - return percent >= floor ? percent : undefined + return percent >= judgingFrom(config.floorPercent, leftAt) ? percent : undefined } /** @@ -103,23 +106,33 @@ async function pastFloor($: EngineInterface, config: Config): Promise { +async function judge($: EngineInterface, step: Step, config: Config, percent: number): Promise { + const started = Date.now() + let verdict: string + let movesOn = false + let answer: unknown try { const prompt = judgePrompt(await $.session.messages(), step) // `unknown`: what the call resolves to has changed between releases, and // readReply takes every shape it has had. - const answer: unknown = await $.model.complete({ model: config.model, system: JUDGE_SYSTEM, prompt, maxTokens: ANSWER_TOKENS }) + answer = await $.model.complete({ model: config.model, system: JUDGE_SYSTEM, prompt, maxTokens: ANSWER_TOKENS }) const reply = readReply(answer) - if ('reason' in reply) { - $.ui.log(`could not judge the step (${reply.reason})`, { to: 'debug' }) - return false + spend = addJudgement(spend, readUsage(answer), 'text' in reply) + if ('reason' in reply) verdict = `could not judge the step (${reply.reason})` + else { + movesOn = saysNext(reply.text) + verdict = `step judged ${movesOn ? 'a new piece' : 'the same work'}` } - return saysNext(reply.text) } catch (error) { - $.ui.log(`could not judge the step (${String(error)})`, { to: 'debug' }) - return false + // Refused before it was sent: nothing was spent. + verdict = `could not judge the step (${String(error)})` } + $.ui.log(judgementLine(percent, verdict, config.model, readUsage(answer), Date.now() - started), { to: 'debug' }) + return movesOn } /** @@ -128,8 +141,13 @@ async function judge($: EngineInterface, step: Step, config: Config): Promise { try { - await $.session.compact() - actedSince = false + const result = await $.session.compact() + if (result.skip === undefined) { + spend = addCompaction(spend, result.tokensBefore, result.tokensAfter) + actedSince = false + } else { + $.ui.log(`compaction skipped (${result.skip})`) + } } catch (error) { $.ui.log(`compaction skipped (${String(error)})`) } @@ -148,9 +166,22 @@ export const register: Register = (on, options) => { env: await $.env.get('TASKCUT'), }) interactive = e.isInteractive + try { + // Immediate: a long unattended turn is when what taskcut has spent is + // worth asking, and the answer needs nothing from the turn. + await $.command.register({ name: COMMAND, description: 'What taskcut has judged and compacted in this session, and what the judging cost', immediate: true }) + } catch (error) { + $.ui.log(`/${COMMAND} not registered (${String(error)})`, { to: 'debug' }) + } return result }) + on('command.run', async ($, e, next) => { + if (e.command !== COMMAND) return next(e) + const percent = activation.active && interactive ? await contextPercent($) : undefined + return { text: spendReport(spend, { active: activation.active, interactive, floorPercent: config.floorPercent, model: config.model, percent }) } + }) + // Inside a turn: each step the main loop makes is judged once its response // is in, while the engine runs the step's tools, and a step that moves on to // another piece ends the turn before the next request goes out -- with every @@ -181,9 +212,7 @@ export const register: Register = (on, options) => { if (result.stopReason !== 'tool_use' || !acted || !lastSentOnResults || !judgeable(step)) return result const percent = await pastFloor($, config) if (percent === undefined) return result - const movesOn = await judge($, step, config) - $.ui.log(`context at ${percent}%, step judged ${movesOn ? 'a new piece' : 'the same work'}`, { to: 'debug' }) - if (movesOn) movedOnAt = percent + if (await judge($, step, config, percent)) movedOnAt = percent return result }) diff --git a/hooks/spend.ts b/hooks/spend.ts new file mode 100644 index 0000000..30c6cc1 --- /dev/null +++ b/hooks/spend.ts @@ -0,0 +1,159 @@ +/** + * What taskcut has spent in a session, as pure functions of plain data. + * + * The judge's calls are taskcut's own cost, and nothing else counts them: + * `$.model.complete` is not on the session's cost ledger, so `/cost` and the + * status line leave them out, and they are not in the transcript. Each call + * resolves the API's own token counts, so the tally is exact and free to keep: + * a sum of numbers already in hand, held in memory, never written anywhere. + * + * It is shown two ways. `/taskcut` gives the session's totals. The debug log + * (`claude --debug`, or `--debug-file`) gets one line per judgement, in a + * format kept stable so that a harness can add the lines up: see + * `judgementLine`. + * + * Tokens, not dollars: a price is the host's to know -- it differs by model, + * by plan and by contract -- and a price list in a plugin would be wrong the + * day it changed. + */ + +/** The four token counts a call reports, as the API does. */ +export type Usage = { + input_tokens: number + output_tokens: number + cache_read_input_tokens: number + cache_creation_input_tokens: number +} + +export type Spend = { + /** Calls made to the judge. */ + judgements: number + /** Of those, the calls that came back without an answer. */ + unanswered: number + /** Of those, the calls whose cost the engine did not report (before 2.1.280). */ + unmetered: number + input: number + cacheRead: number + cacheWrite: number + output: number + /** Compactions taskcut started, and the context before and after them, summed. */ + compactions: number + compactedFrom: number + compactedTo: number +} + +export const NOTHING: Spend = { + judgements: 0, + unanswered: 0, + unmetered: 0, + input: 0, + cacheRead: 0, + cacheWrite: 0, + output: 0, + compactions: 0, + compactedFrom: 0, + compactedTo: 0, +} + +function count(value: unknown): number | undefined { + return typeof value === 'number' && Number.isFinite(value) && value >= 0 ? value : undefined +} + +/** + * The token counts a model call resolved with, whichever shape it had; none + * when it reported none, as a reply that was only text did up to 2.1.278. + */ +export function readUsage(answer: unknown): Usage | undefined { + if (typeof answer !== 'object' || answer === null || !('usage' in answer)) return undefined + const usage = (answer as { usage: unknown }).usage + if (typeof usage !== 'object' || usage === null) return undefined + const fields = usage as Record + const input = count(fields.input_tokens) + const output = count(fields.output_tokens) + if (input === undefined || output === undefined) return undefined + return { + input_tokens: input, + output_tokens: output, + cache_read_input_tokens: count(fields.cache_read_input_tokens) ?? 0, + cache_creation_input_tokens: count(fields.cache_creation_input_tokens) ?? 0, + } +} + +/** The tally with one more judgement in it. */ +export function addJudgement(spend: Spend, usage: Usage | undefined, answered: boolean): Spend { + return { + ...spend, + judgements: spend.judgements + 1, + unanswered: spend.unanswered + (answered ? 0 : 1), + unmetered: spend.unmetered + (usage ? 0 : 1), + input: spend.input + (usage?.input_tokens ?? 0), + cacheRead: spend.cacheRead + (usage?.cache_read_input_tokens ?? 0), + cacheWrite: spend.cacheWrite + (usage?.cache_creation_input_tokens ?? 0), + output: spend.output + (usage?.output_tokens ?? 0), + } +} + +/** The tally with one more compaction in it, and the context either side of it when the engine said. */ +export function addCompaction(spend: Spend, before: number | undefined, after: number | undefined): Spend { + const known = count(before) !== undefined && count(after) !== undefined + return { + ...spend, + compactions: spend.compactions + 1, + compactedFrom: spend.compactedFrom + (known ? before! : 0), + compactedTo: spend.compactedTo + (known ? after! : 0), + } +} + +/** + * The debug line for one judgement: + * + * context at 41%, step judged the same work [judge sonnet: in=1834 cache_read=0 cache_write=0 out=52 ms=2140] + * + * The bracket is the record: the model asked, the four token counts and how + * long the call took. It is left out when the engine reported no counts. Its + * format is part of what taskcut promises, because the benchmark reads it. + */ +export function judgementLine(percent: number, verdict: string, model: string, usage: Usage | undefined, ms: number): string { + const record = usage + ? ` [judge ${model}: in=${usage.input_tokens} cache_read=${usage.cache_read_input_tokens} cache_write=${usage.cache_creation_input_tokens} out=${usage.output_tokens} ms=${Math.round(ms)}]` + : '' + return `context at ${percent}%, ${verdict}${record}` +} + +function thousands(n: number): string { + return Math.round(n).toLocaleString('en-US') +} + +function plural(n: number, one: string, many = `${one}s`): string { + return `${thousands(n)} ${n === 1 ? one : many}` +} + +/** What `/taskcut` says: whether taskcut is at work in this session, and what it has spent. */ +export function spendReport( + spend: Spend, + state: { active: boolean; interactive: boolean; floorPercent: number; model: string; percent: number | undefined }, +): string { + const lines: string[] = [] + if (!state.active) lines.push('taskcut is off in this session (TASKCUT=0).') + else if (!state.interactive) lines.push('taskcut does nothing in a session nobody is at: it cannot compact there.') + else { + const now = state.percent === undefined ? '' : ` The context is at ${state.percent}%.` + lines.push(`taskcut is on: past ${state.floorPercent}% of the context, ${state.model} judges each step.${now}`) + } + + if (spend.judgements === 0) { + lines.push('Nothing judged yet, so nothing spent.') + return lines.join('\n') + } + const read = spend.input + spend.cacheRead + spend.cacheWrite + const cached = spend.cacheRead > 0 ? ` (${thousands(spend.cacheRead)} from the cache)` : '' + const failed = spend.unanswered > 0 ? `, ${thousands(spend.unanswered)} of them unanswered` : '' + lines.push(`Judged ${plural(spend.judgements, 'step')}${failed}: ${thousands(read)} tokens read${cached}, ${thousands(spend.output)} written.`) + if (spend.unmetered > 0) lines.push(`${plural(spend.unmetered, 'call')} reported no token counts, and ${spend.unmetered === 1 ? 'is' : 'are'} not in these.`) + if (spend.compactions > 0) { + const sizes = spend.compactedFrom > 0 ? `, ${thousands(spend.compactedFrom)} tokens of context down to ${thousands(spend.compactedTo)}` : '' + lines.push(`Compacted ${plural(spend.compactions, 'time')}${sizes}.`) + } + lines.push("/cost does not count the judge's calls: they are all here. It does count the compactions, which are Claude Code's own.") + return lines.join('\n') +} diff --git a/test/config.test.ts b/test/config.test.ts index fcc93ed..6bf2a43 100644 --- a/test/config.test.ts +++ b/test/config.test.ts @@ -1,7 +1,27 @@ import { test, describe } from 'node:test' import assert from 'node:assert/strict' -import { DEFAULTS, readConfig } from '../hooks/config.ts' +import { DEFAULTS, REGROWTH, judgingFrom, readConfig } from '../hooks/config.ts' + +describe('judgingFrom', () => { + test('is the floor before any compaction', () => { + assert.equal(judgingFrom(35, undefined), 35) + }) + + test('a floor of 0 judges from the first step', () => { + // It once waited for 5%: an unset "left at" read as a compaction that left 0%. + assert.equal(judgingFrom(0, undefined), 0) + }) + + test('is the floor again once a compaction took the context under it', () => { + assert.equal(judgingFrom(35, 12), 35) + }) + + test('waits for regrowth after a compaction that could not get under it', () => { + assert.equal(judgingFrom(35, 40), 40 + REGROWTH) + assert.equal(judgingFrom(0, 3), 3 + REGROWTH) + }) +}) describe('readConfig', () => { test('returns the defaults for an empty manifest', () => { diff --git a/test/judge.test.ts b/test/judge.test.ts index 6733395..991df4d 100644 --- a/test/judge.test.ts +++ b/test/judge.test.ts @@ -246,7 +246,9 @@ describe('readReply', () => { test('reads the result it resolves from 2.1.280', () => { const usage = { input_tokens: 1, output_tokens: 1, cache_read_input_tokens: 0, cache_creation_input_tokens: 0 } assert.deepEqual(readReply({ isAnswered: true, text: 'SAME', usage }), { text: 'SAME' }) - assert.deepEqual(readReply({ isAnswered: false, reason: 'api-error', status: 529, error: 'overloaded', usage }), { reason: 'api-error' }) + assert.deepEqual(readReply({ isAnswered: false, reason: 'api-error', status: 529, error: 'overloaded', usage }), { reason: 'api-error 529 overloaded' }) + assert.deepEqual(readReply({ isAnswered: false, reason: 'api-error', status: null, error: 'unknown', usage }), { reason: 'api-error unknown' }) + assert.deepEqual(readReply({ isAnswered: false, reason: 'aborted', usage }), { reason: 'aborted' }) }) test('anything else is no reply, never a verdict', () => { diff --git a/test/spend.test.ts b/test/spend.test.ts new file mode 100644 index 0000000..27c47af --- /dev/null +++ b/test/spend.test.ts @@ -0,0 +1,126 @@ +import { test, describe } from 'node:test' +import assert from 'node:assert/strict' + +import { NOTHING, addCompaction, addJudgement, judgementLine, readUsage, spendReport } from '../hooks/spend.ts' + +const usage = { input_tokens: 1834, output_tokens: 52, cache_read_input_tokens: 0, cache_creation_input_tokens: 0 } +const on = { active: true, interactive: true, floorPercent: 35, model: 'sonnet', percent: 41 } + +describe('readUsage', () => { + test('reads the counts an answered call resolves with', () => { + assert.deepEqual(readUsage({ isAnswered: true, text: 'SAME', usage }), usage) + }) + + test('reads them off an unanswered call too, which may still have cost', () => { + assert.deepEqual(readUsage({ isAnswered: false, reason: 'empty-reply', usage }), usage) + }) + + test('none from a reply that was only text, as up to 2.1.278', () => { + assert.equal(readUsage('It moves on.\nNEXT'), undefined) + }) + + test('none from anything that is not counts', () => { + for (const odd of [undefined, null, {}, { usage: null }, { usage: {} }, { usage: { input_tokens: -1, output_tokens: 1 } }, { usage: { input_tokens: '5', output_tokens: 1 } }]) { + assert.equal(readUsage(odd), undefined, JSON.stringify(odd)) + } + }) + + test('a cache count left out is none used', () => { + assert.deepEqual(readUsage({ usage: { input_tokens: 3, output_tokens: 4 } }), { input_tokens: 3, output_tokens: 4, cache_read_input_tokens: 0, cache_creation_input_tokens: 0 }) + }) +}) + +describe('addJudgement', () => { + test('sums every count', () => { + const cached = { input_tokens: 10, output_tokens: 5, cache_read_input_tokens: 1000, cache_creation_input_tokens: 20 } + const spend = addJudgement(addJudgement(NOTHING, usage, true), cached, true) + assert.equal(spend.judgements, 2) + assert.equal(spend.input, 1844) + assert.equal(spend.cacheRead, 1000) + assert.equal(spend.cacheWrite, 20) + assert.equal(spend.output, 57) + assert.equal(spend.unanswered, 0) + }) + + test('counts a call that went unanswered, and what it cost', () => { + const spend = addJudgement(NOTHING, usage, false) + assert.equal(spend.unanswered, 1) + assert.equal(spend.input, 1834) + }) + + test('counts a call that reported no cost, apart', () => { + const spend = addJudgement(NOTHING, undefined, true) + assert.equal(spend.judgements, 1) + assert.equal(spend.unmetered, 1) + assert.equal(spend.input, 0) + }) + + test('leaves the tally it was given alone', () => { + addJudgement(NOTHING, usage, true) + assert.equal(NOTHING.judgements, 0) + }) +}) + +describe('addCompaction', () => { + test('counts it, and the context either side', () => { + const spend = addCompaction(NOTHING, 431_567, 10_511) + assert.equal(spend.compactions, 1) + assert.equal(spend.compactedFrom, 431_567) + assert.equal(spend.compactedTo, 10_511) + }) + + test('counts it without sizes the engine did not give', () => { + const spend = addCompaction(NOTHING, 431_567, undefined) + assert.equal(spend.compactions, 1) + assert.equal(spend.compactedFrom, 0) + assert.equal(spend.compactedTo, 0) + }) +}) + +describe('judgementLine', () => { + test('carries the verdict and a record the benchmark reads', () => { + assert.equal( + judgementLine(41, 'step judged the same work', 'sonnet', usage, 2140.4), + 'context at 41%, step judged the same work [judge sonnet: in=1834 cache_read=0 cache_write=0 out=52 ms=2140]', + ) + }) + + test('has no record when the engine reported no counts', () => { + assert.equal(judgementLine(41, 'step judged a new piece', 'haiku', undefined, 10), 'context at 41%, step judged a new piece') + }) + + test('keeps to a shape a harness can parse', () => { + const line = judgementLine(60, 'could not judge the step (api-error 429 rate_limit)', 'claude-sonnet-5', usage, 5) + const match = /\[judge (\S+): in=(\d+) cache_read=(\d+) cache_write=(\d+) out=(\d+) ms=(\d+)\]$/.exec(line) + assert.ok(match, line) + assert.deepEqual(match!.slice(1).map(String), ['claude-sonnet-5', '1834', '0', '0', '52', '5']) + }) +}) + +describe('spendReport', () => { + test('says nothing was spent before the floor', () => { + const text = spendReport(NOTHING, { ...on, percent: 12 }) + assert.match(text, /taskcut is on: past 35% of the context, sonnet judges each step\. The context is at 12%\./) + assert.match(text, /Nothing judged yet/) + }) + + test('gives the totals, and says /cost does not have them', () => { + let spend = addJudgement(NOTHING, usage, true) + spend = addJudgement(spend, { ...usage, cache_read_input_tokens: 500 }, false) + spend = addCompaction(spend, 431_567, 10_511) + const text = spendReport(spend, on) + assert.match(text, /Judged 2 steps, 1 of them unanswered: 4,168 tokens read \(500 from the cache\), 104 written\./) + assert.match(text, /Compacted 1 time, 431,567 tokens of context down to 10,511\./) + assert.match(text, /\/cost does not count the judge's calls/) + }) + + test('says when some calls reported no counts', () => { + const text = spendReport(addJudgement(NOTHING, undefined, true), on) + assert.match(text, /1 call reported no token counts, and is not in these\./) + }) + + test('says when taskcut is off, or cannot act', () => { + assert.match(spendReport(NOTHING, { ...on, active: false }), /off in this session/) + assert.match(spendReport(NOTHING, { ...on, interactive: false }), /nobody is at/) + }) +}) From 292ab463ca81af2f1efd5c7beb3bacbb1636fc57 Mon Sep 17 00:00:00 2001 From: Yangze Luo Date: Wed, 23 Sep 2026 22:52:33 +0800 Subject: [PATCH 04/14] feat(eval): put the judge's cost beside the session's The benchmark read a run's cost off its transcript, and the judge's calls are not in it -- nor in Claude Code's cost ledger -- so every cost it has reported for a taskcut arm left the judging out. Every session now runs with --debug-file. After the run, the record taskcut puts at the end of each judgement line is summed into results/.judging.json, beside the transcript, and the cost table gains the judge's calls, weighted input and output. The debug log itself stays in the scratch directory. The format is a contract between hooks/spend.ts and metrics.JUDGEMENT_LINE, so one test renders a line with the plugin's own code, under node, and parses it here. Checked on a real `make eval-mechanism` run: nine of nine checks pass, and the sidecar holds its three judgements, 5,933 tokens in and 161 out. Co-Authored-By: Claude Opus 5.5 (1M context) --- eval/README.md | 9 +++++++ eval/taskcut_eval/cli.py | 34 ++++++++++++++++++++--- eval/taskcut_eval/driver.py | 16 +++++++---- eval/taskcut_eval/mechanism.py | 4 +-- eval/taskcut_eval/metrics.py | 49 ++++++++++++++++++++++++++++++++++ eval/taskcut_eval/report.py | 11 ++++++-- eval/tests/test_metrics.py | 47 ++++++++++++++++++++++++++++++++ 7 files changed, 157 insertions(+), 13 deletions(-) diff --git a/eval/README.md b/eval/README.md index 80894d3..c86f354 100644 --- a/eval/README.md +++ b/eval/README.md @@ -217,6 +217,15 @@ comparison. counters together -- the number people usually quote -- bills cached tokens at full price and overstates a long session several times over. Both are printed. +The `judge` columns are taskcut's own calls, in the same units for the judge's +model. They are in neither the transcript nor Claude Code's cost ledger, so the +harness runs every session with `--debug-file`, sums the record at the end of +each judgement line (`[judge sonnet: in=… cache_read=… cache_write=… out=… +ms=…]`) and keeps the sums in `results/.judging.json`, beside the +transcript. A `-` there is a run recorded before taskcut logged them, not a +run that made none. The debug log itself stays in the scratch directory: it is +large and full of absolute paths. + `context carried into each turn` is `cache_read + cache_write` on the first request of a turn. It has to be both: a cut invalidates the cache past the tool definitions, so most of what an arm that cuts carries arrives as a write, and diff --git a/eval/taskcut_eval/cli.py b/eval/taskcut_eval/cli.py index 883d88e..e5db851 100644 --- a/eval/taskcut_eval/cli.py +++ b/eval/taskcut_eval/cli.py @@ -25,6 +25,24 @@ def _workspace(work: Path, name: str, arm: str, model: str) -> Path: return work / "workspaces" / f"{name}--{arm}--{model}" +def _debug_file(work: Path, stem: str) -> Path: + # Outside the results: a debug log is large and full of absolute paths. + # What the report needs from it is summed into a sidecar. + path = work / "debug" / f"{stem}.log" + path.parent.mkdir(parents=True, exist_ok=True) + path.unlink(missing_ok=True) + return path + + +def _write_judging(debug: Path, destination: Path) -> None: + """What the judge spent, summed from the session's debug log into a sidecar + beside the transcript. The judge's calls are in neither the transcript nor + Claude Code's cost ledger.""" + spent = metrics.judging(debug.read_text(errors="replace") if debug.exists() else "") + destination.write_text(json.dumps(vars(spent), indent=1) + "\n") + print(f"judge: {spent.calls} calls, {spent.plain + spent.read + spent.write:,} tokens in, {spent.output:,} out -> {destination}") + + def cmd_list(args) -> int: loaded = workload.load_all(WORKLOADS) print("workloads:") @@ -67,16 +85,18 @@ def cmd_run(args) -> int: if problems: raise SystemExit("workload is not answerable:\n " + "\n ".join(problems)) + stem = f"{w.name}--{arm.name}--{model.alias}" plugin = driver.prepare_plugin(arm, REPO_ROOT, work / "plugins" / arm.name) - driver.run(w, arm, space, plugin, model.alias) + debug = _debug_file(work, stem) + driver.run(w, arm, space, plugin, model.alias, debug_file=debug) path = transcript.find(PROJECTS, space) results = Path(args.results) results.mkdir(parents=True, exist_ok=True) - stem = f"{w.name}--{arm.name}--{model.alias}" destination = results / f"{stem}.jsonl" destination.write_bytes(path.read_bytes()) print(f"transcript -> {destination}") + _write_judging(debug, results / f"{stem}.judging.json") # While the workspace is still as the session left it. A check is the only # honest grade for a task that produced something, and it cannot be @@ -112,6 +132,9 @@ def cmd_report(args) -> int: sidecar = path.with_suffix("").with_suffix(".checks.json") if sidecar.exists(): run.checks.extend(metrics.CheckResult(**v) for v in json.loads(sidecar.read_text())) + spent = path.with_suffix("").with_suffix(".judging.json") + if spent.exists(): + run.judging = metrics.Judging(**json.loads(spent.read_text())) grouped.setdefault((name, model), []).append(run) if not grouped: @@ -155,6 +178,7 @@ def _numbers(run) -> dict: "request_context_mean": round(run.mean_request), "elapsed_seconds": round(run.elapsed), "checks": {c.id: c.passed for c in run.checks}, + "judging": vars(run.judging) if run.judging else None, "drift": { d.id: {"held": d.held, "steps": d.steps, "first_lapse": d.first_lapse, "per_step": list(d.per_step)} @@ -178,14 +202,16 @@ def cmd_mechanism(args) -> int: model = models.get(args.model) space = mechanism.materialise(_workspace(work, "mechanism", mechanism.ARM.name, model.alias)) plugin = driver.prepare_plugin(mechanism.ARM, REPO_ROOT, work / "plugins" / mechanism.ARM.name) - mechanism.drive(space, plugin, mechanism.ARM, model.alias) + stem = f"mechanism--{model.alias}" + debug = _debug_file(work, stem) + mechanism.drive(space, plugin, mechanism.ARM, model.alias, debug_file=debug) results = Path(args.results) results.mkdir(parents=True, exist_ok=True) - stem = f"mechanism--{model.alias}" destination = results / f"{stem}.jsonl" destination.write_bytes(transcript.find(PROJECTS, space).read_bytes()) print(f"transcript -> {destination}") + _write_judging(debug, results / f"{stem}.judging.json") verdicts = mechanism.check(destination, model.window, space) (results / f"{stem}.checks.json").write_text(json.dumps([vars(v) for v in verdicts], indent=1) + "\n") diff --git a/eval/taskcut_eval/driver.py b/eval/taskcut_eval/driver.py index fa7e377..6c85b6e 100644 --- a/eval/taskcut_eval/driver.py +++ b/eval/taskcut_eval/driver.py @@ -87,7 +87,8 @@ def prepare_plugin(arm: Arm, source: Path, destination: Path) -> Path: class Session: - def __init__(self, cwd: Path, plugin: Path | None, env: dict, model: str, cols: int = 120, rows: int = 40): + def __init__(self, cwd: Path, plugin: Path | None, env: dict, model: str, cols: int = 120, rows: int = 40, + debug_file: Path | None = None): # A workspace reused across runs keeps the transcripts of the earlier # ones, under the same project directory. This session's is the one # that was not there before it started. @@ -103,10 +104,13 @@ def __init__(self, cwd: Path, plugin: Path | None, env: dict, model: str, cols: environment["TERM"] = "xterm-256color" environment["COLUMNS"], environment["LINES"] = str(cols), str(rows) environment.update(env) + # The debug log is the only record of what taskcut's judge spent: its + # calls are in neither the transcript nor Claude Code's cost ledger. + debug = ["--debug-file", str(debug_file)] if debug_file else [] self.process = subprocess.Popen( # No plugin directory is a session with whatever is installed, the way # a person would start one. - [_binary(), *(["--plugin-dir", str(plugin)] if plugin else []), "--model", model, "--allowedTools", TOOLS, "--disallowedTools", DENIED], + [_binary(), *(["--plugin-dir", str(plugin)] if plugin else []), "--model", model, "--allowedTools", TOOLS, "--disallowedTools", DENIED, *debug], cwd=str(cwd), env=environment, stdin=slave, @@ -247,9 +251,11 @@ def _one_message(session: Session, workload: Workload, log) -> None: log(f" nudge {n}/{workload.max_nudges} settled={session.ask(workload.nudge, timeout=LONG_TURN_TIMEOUT)}") -def run(workload: Workload, arm: Arm, workspace: Path, plugin: Path, model: str, log=_log) -> None: - """Drives one workload under one arm. Results are read from the transcript.""" - session = Session(workspace, plugin, dict(arm.env), model) +def run(workload: Workload, arm: Arm, workspace: Path, plugin: Path, model: str, log=_log, + debug_file: Path | None = None) -> None: + """Drives one workload under one arm. Results are read from the transcript, + and what the judge spent from the debug log.""" + session = Session(workspace, plugin, dict(arm.env), model, debug_file=debug_file) try: session.read_until_quiet(quiet=3.0, timeout=120) if session.accept_trust_prompt(): diff --git a/eval/taskcut_eval/mechanism.py b/eval/taskcut_eval/mechanism.py index 3bb223b..5d20e94 100644 --- a/eval/taskcut_eval/mechanism.py +++ b/eval/taskcut_eval/mechanism.py @@ -97,8 +97,8 @@ def materialise(root: Path) -> Path: return root -def drive(workspace: Path, plugin: Path, arm: Arm, model: str, log=print) -> None: - session = driver.Session(workspace, plugin, dict(arm.env), model) +def drive(workspace: Path, plugin: Path, arm: Arm, model: str, log=print, debug_file: Path | None = None) -> None: + session = driver.Session(workspace, plugin, dict(arm.env), model, debug_file=debug_file) try: session.read_until_quiet(quiet=3.0, timeout=120) session.accept_trust_prompt() diff --git a/eval/taskcut_eval/metrics.py b/eval/taskcut_eval/metrics.py index 9299038..48de7e3 100644 --- a/eval/taskcut_eval/metrics.py +++ b/eval/taskcut_eval/metrics.py @@ -57,6 +57,52 @@ def cost(transcript: Transcript) -> Cost: ) +#: One judgement as taskcut writes it to the debug log (hooks/spend.ts, +#: judgementLine). The judge's calls are in neither the transcript nor Claude +#: Code's own cost ledger, so this line is the only record of them. +JUDGEMENT_LINE = re.compile( + r"context at (?P\d+)%, (?P.*?) \[judge (?P\S+): in=(?P\d+) " + r"cache_read=(?P\d+) cache_write=(?P\d+) out=(?P\d+) ms=(?P\d+)\]\s*$" +) + + +@dataclass(frozen=True) +class Judging: + """What taskcut's judge cost in a run: every call, answered or not.""" + + calls: int + moved_on: int + unanswered: int + model: str + read: int + write: int + plain: int + output: int + ms: int + + @property + def weighted(self) -> float: + """Input cost in base-input-token equivalents of the judge's own model.""" + return self.plain + CACHE_WRITE_MULTIPLIER * self.write + CACHE_READ_MULTIPLIER * self.read + + +def judging(log: str) -> Judging: + """Sums the judgement lines of a debug log. Lines of any other kind are + not in it, and neither is a judgement whose cost the engine did not report.""" + found = [m for m in (JUDGEMENT_LINE.search(line) for line in log.splitlines()) if m] + return Judging( + calls=len(found), + moved_on=sum(m["verdict"] == "step judged a new piece" for m in found), + unanswered=sum(m["verdict"].startswith("could not judge") for m in found), + model=",".join(sorted({m["model"] for m in found})), + read=sum(int(m["read"]) for m in found), + write=sum(int(m["write"]) for m in found), + plain=sum(int(m["plain"]) for m in found), + output=sum(int(m["output"]) for m in found), + ms=sum(int(m["ms"]) for m in found), + ) + + def prefix_series(transcript: Transcript) -> list[int]: """What the model carried into each turn, turn by turn. @@ -241,6 +287,9 @@ class Run: elapsed: float = 0.0 #: Filled in from the sidecar a run writes; empty for a workload with none. checks: list = field(default_factory=list) + #: What the judge cost, from the run's sidecar. None for a run recorded + #: before taskcut logged it, which is not the same as a run that judged nothing. + judging: Judging | None = None @property def fidelity(self) -> dict[str, Fidelity]: diff --git a/eval/taskcut_eval/report.py b/eval/taskcut_eval/report.py index ac1bf2f..7cbcfb2 100644 --- a/eval/taskcut_eval/report.py +++ b/eval/taskcut_eval/report.py @@ -19,9 +19,12 @@ def table(header: list[str], rows: list[list[str]]) -> str: def cost_table(runs: list[Run]) -> str: + """The session's own requests, then the judge's calls, which are in neither + its transcript nor its cost ledger: "-" is a run recorded before taskcut + logged them, not a run that made none.""" rows = [] for run in runs: - c = run.cost + c, j = run.cost, run.judging rows.append([ run.arm, f"{c.weighted:,.0f}", @@ -29,8 +32,12 @@ def cost_table(runs: list[Run]) -> str: f"{c.write:,}", f"{c.output:,}", str(c.requests), + f"{j.calls} ({j.model})" if j and j.calls else ("0" if j else "-"), + f"{j.weighted:,.0f}" if j else "-", + f"{j.output:,}" if j else "-", ]) - return table(["arm", "weighted input", "cache read", "cache write", "output", "requests"], rows) + return table(["arm", "weighted input", "cache read", "cache write", "output", "requests", + "judge calls", "judge weighted input", "judge output"], rows) def context_table(runs: list[Run], model: Model | None = None) -> str: diff --git a/eval/tests/test_metrics.py b/eval/tests/test_metrics.py index 09a8050..ac5702d 100644 --- a/eval/tests/test_metrics.py +++ b/eval/tests/test_metrics.py @@ -1,9 +1,14 @@ """The numbers, checked against hand-computed values.""" +import shutil +import subprocess import unittest +from pathlib import Path from taskcut_eval import metrics, transcript, workload +REPO = Path(__file__).resolve().parents[2] + def turn(prompt, requests, texts=(), tools=()): t = transcript.Turn(prompt=prompt) @@ -37,6 +42,48 @@ def test_a_turn_with_no_request_is_skipped(self): self.assertEqual(metrics.prefix_series(t), []) +LOG = """\ +2026-09-23T14:22:26.120Z [DEBUG] [taskcut] $.ui.log (to debug): context at 36%, step judged the same work [judge sonnet: in=1834 cache_read=0 cache_write=0 out=52 ms=2140] +2026-09-23T14:22:27.001Z [DEBUG] something else entirely: in=999 out=999 +2026-09-23T14:22:31.120Z [DEBUG] [taskcut] $.ui.log (to debug): context at 37%, step judged a new piece [judge sonnet: in=2001 cache_read=100 cache_write=40 out=61 ms=1800] +2026-09-23T14:22:40.120Z [DEBUG] [taskcut] $.ui.log (to debug): context at 37%, could not judge the step (api-error 429 rate_limit) [judge sonnet: in=0 cache_read=0 cache_write=0 out=0 ms=300] +2026-09-23T14:22:41.120Z [DEBUG] [taskcut] $.ui.log (to debug): context at 38%, step judged the same work +""" + + +class Judging(unittest.TestCase): + def test_every_call_is_summed_answered_or_not(self): + j = metrics.judging(LOG) + self.assertEqual((j.calls, j.moved_on, j.unanswered), (3, 1, 1)) + self.assertEqual((j.plain, j.read, j.write, j.output, j.ms), (3835, 100, 40, 113, 4240)) + self.assertEqual(j.model, "sonnet") + + def test_weighted_like_the_session_is(self): + j = metrics.judging(LOG) + self.assertAlmostEqual(j.weighted, 3835 + 1.25 * 40 + 0.1 * 100) + + def test_a_line_without_a_record_is_not_a_call_it_can_price(self): + # A Claude Code that reported no cost: the line is there, the numbers are not. + self.assertEqual(metrics.judging(LOG.splitlines()[-1]).calls, 0) + + def test_no_log_is_nothing_judged(self): + self.assertEqual(metrics.judging("").calls, 0) + + @unittest.skipUnless(shutil.which("node"), "node runs the plugin's own formatter") + def test_reads_what_the_plugin_writes(self): + # The format is a contract between hooks/spend.ts and this parser: + # render a line with the plugin's own code and read it back here. + script = ( + "import { judgementLine } from './hooks/spend.ts';" + "console.log(judgementLine(52, 'step judged a new piece', 'claude-sonnet-5'," + " { input_tokens: 7, output_tokens: 8, cache_read_input_tokens: 9, cache_creation_input_tokens: 10 }, 11.6))" + ) + line = subprocess.run(["node", "--input-type=module", "-e", script], cwd=REPO, capture_output=True, text=True, check=True).stdout + j = metrics.judging(f"2026 [DEBUG] [taskcut] $.ui.log (to debug): {line}") + self.assertEqual((j.calls, j.moved_on, j.model), (1, 1, "claude-sonnet-5")) + self.assertEqual((j.plain, j.output, j.read, j.write, j.ms), (7, 8, 9, 10, 12)) + + class Fidelity(unittest.TestCase): def setUp(self): self.workload = workload.Workload( From 8ce235a3e9d2daa998585b59f1fa2e293dbffb1b Mon Sep 17 00:00:00 2001 From: Yangze Luo Date: Wed, 23 Sep 2026 22:52:47 +0800 Subject: [PATCH 05/14] feat(eval): click-zh, twenty real changes in one Chinese message Every boundary the judge has been measured on came from sqlglot-long: one repository, one prompt, one way of saying "Issue 12 done; now 13", in sessions that never kept a task list and never committed. Real sessions do both, and a commit is the most common thing a step does between one piece of work and the next -- wrapping up, not moving on. click-zh hands the twenty click changes of issues-long over in one message, in Chinese: keep a task list, work through ISSUES.md in order, commit after each issue. It is graded by the same per-issue tests and the whole suite. A session that commits moves HEAD, so `git diff HEAD -- tests` no longer shows whether a test was touched. click_issues.py now tags the broken state eval-start, writes ISSUES.md for a workload that names itself, and the checks diff against the tag; one more asks that the work was committed. Verified both ways: in the broken state every issue check fails; with the twenty real fixes committed one by one every check passes; a test edited and committed fails tests_untouched. Co-Authored-By: Claude Opus 5.5 (1M context) --- eval/README.md | 16 +++ eval/generators/click_issues.py | 32 ++++-- eval/workloads/click-zh.json | 183 ++++++++++++++++++++++++++++++++ 3 files changed, 224 insertions(+), 7 deletions(-) create mode 100644 eval/workloads/click-zh.json diff --git a/eval/README.md b/eval/README.md index c86f354..c1ceac9 100644 --- a/eval/README.md +++ b/eval/README.md @@ -169,6 +169,22 @@ all thirty-six real fixes put back, every check passes. Two changes only apply on top of an older one's; both stay separate issues, and the cases that need both belong to the later. +**`click-zh`** -- the twenty click changes of `issues-long`, handed over in +**one message, in Chinese**, the way the job taskcut is for is given in real +use: keep a task list, fix the issues in the order ISSUES.md lists them, and +commit after each one. It exists because every boundary the judge had been +measured on came from `sqlglot-long` -- one repository, one prompt, one way of +saying "Issue 12 done; now 13" -- and from sessions that never kept a task list +or committed, where real ones do both: a commit is the most common thing a step +does between one piece and the next, and it is wrapping up, not moving on. +Graded by the same per-issue tests and the whole suite. Because the session +commits as it goes, `git diff HEAD` no longer shows what it changed, so the +workspace's broken state is tagged `eval-start` and the checks diff against +that; one more check asks that the work was committed, a commit per issue at +least. Verified both ways: in the broken state every issue check fails, with +the twenty real fixes committed one by one every check passes, and a test +edited and committed fails `tests_untouched`. + **`audit`** -- five steps researching a real Flask checkout, then five building a standard-library tool that finds configuration key reads, run against that same checkout. The answer is exact and computable -- 30 keys, 42 reads, under a diff --git a/eval/generators/click_issues.py b/eval/generators/click_issues.py index 8e377f1..ba3045e 100755 --- a/eval/generators/click_issues.py +++ b/eval/generators/click_issues.py @@ -10,25 +10,37 @@ beside the patches. Reverting has to go newest first: a later change can build on an earlier one, and peeling them off in any other order does not apply. -The broken state is committed, so that a check can ask afterwards exactly what -the session changed. +The broken state is committed and tagged `eval-start`, so that a check can ask +afterwards exactly what the session changed -- even of a session told to commit +its work as it goes, which moves HEAD. -Usage: click_issues.py +A workload that hands every issue over in one message names its own file as a +third argument, and its issues are written to ISSUES.md, in its order. + +Usage: click_issues.py [workload file] """ +import json import pathlib import subprocess import sys HERE = pathlib.Path(__file__).resolve().parent PATCHES = HERE.parent / "fixtures" / "click" +WORKLOADS = HERE.parent / "workloads" def run(*args, cwd): subprocess.run(args, cwd=cwd, check=True, stdout=subprocess.DEVNULL) -def main(root: pathlib.Path, order: str) -> None: +def issues_markdown(issues: list[str]) -> str: + parts = [f"# Open issues\n\n{len(issues)} issues, to be worked through in order.\n"] + parts += [f"## Issue {n}\n\n{text.strip()}\n" for n, text in enumerate(issues, 1)] + return "\n".join(parts) + + +def main(root: pathlib.Path, order: str, workload: str = "") -> None: shas = [line.strip() for line in (PATCHES / order).read_text().splitlines() if line.strip()] exclude = root / ".git" / "info" / "exclude" @@ -42,11 +54,17 @@ def main(root: pathlib.Path, order: str) -> None: for sha in shas: run("git", "apply", "-R", str(PATCHES / f"{sha}.patch"), cwd=root) + if workload: + issues = json.loads((WORKLOADS / workload).read_text())["files"] + (root / "ISSUES.md").write_text(issues_markdown(issues)) + + run("git", "add", "-A", cwd=root) run("git", "-c", "user.name=taskcut-eval", "-c", "user.email=eval@taskcut.invalid", - "commit", "--quiet", "-am", f"{len(shas)} open issues", cwd=root) + "commit", "--quiet", "-m", f"{len(shas)} open issues", cwd=root) + run("git", "tag", "eval-start", cwd=root) if __name__ == "__main__": - if len(sys.argv) != 3: + if len(sys.argv) not in (3, 4): sys.exit(__doc__) - main(pathlib.Path(sys.argv[1]).resolve(), sys.argv[2]) + main(pathlib.Path(sys.argv[1]).resolve(), *sys.argv[2:]) diff --git a/eval/workloads/click-zh.json b/eval/workloads/click-zh.json new file mode 100644 index 0000000..2b3184c --- /dev/null +++ b/eval/workloads/click-zh.json @@ -0,0 +1,183 @@ +{ + "name": "click-zh", + "description": "The twenty click changes of issues-long, handed over in one message in Chinese, with a task list to keep and a commit to make after every issue: a second repository for the one-message case, in the language and the habits of real use.", + "source": { + "kind": "git", + "url": "https://github.com/pallets/click.git", + "ref": "6aabf099bfdd4c1e75fe8d0e0d4241372b988ab1", + "prepare": "click_issues.py issues-long.order click-zh.json" + }, + "fixtures": [ + "src/click/core.py", + "ISSUES.md", + ".venv/bin/python" + ], + "files": [ + "Bug report.\n\n`click.echo` misbehaves when it is given empty bytes and a custom file.\n\nFailing:\n tests/test_utils/test_echo.py::test_echo_custom_file", + "Bug report.\n\n**`KeyboardInterrupt` during `click.prompt()` can race** (upstream #3802)\n\nWhen a user presses Ctrl-C during `click.prompt()`, this may cause an unhandled exception instead of a clean abort. Seen in CI on an Ubuntu 22.04 arm runner; the same test passed on x64, macOS and Windows, so it is likely a race that does not show up every time. The traceback runs through `Command.main`, `invoke` and `make_context`.\n\nFailing:\n tests/test_abort_interrupt.py::test_interrupt_while_exiting_after_success\n tests/test_abort_interrupt.py::test_interrupt_while_reporting_abort\n tests/test_abort_interrupt.py::test_interrupt_while_reporting_error", + "Bug report.\n\nAn optional `Choice` or `DateTime` argument is shown with doubled brackets in the usage synopsis.\n\nFailing:\n tests/test_basic.py::test_choice_argument_optional_metavar\n tests/test_basic.py::test_datetime_argument_optional_metavar", + "Feature request.\n\n**Support pathlib.Path in edit filename** (upstream #2869)\n\n`click.edit(filename=some_path)` with a `pathlib.Path` is rejected by the type checker -- `filename` is typed `str | None` -- and the workaround is `click.edit(filename=str(path))`. It would be nice not to need the `str`. It should actually work at runtime too, not only type-check.\n\nFailing:\n tests/test_termui.py::test_edit_pathlib", + "Bug report.\n\n**help not resolving automatically** (upstream #2819)\n\nThe docs say the help parameter performs automatic conflict resolution: if a command itself implements a parameter with the same name, the default help parameter stops accepting it. That does not happen when a command has an argument or option named `help` -- parsing goes wrong. Click should also warn when an argument's name collides with another parameter.\n\nFailing:\n tests/test_basic.py::test_param_named_help\n tests/test_basic.py::test_param_squatting_help_option_name\n tests/test_info_dict.py::test_command\n tests/test_info_dict.py::test_context\n tests/test_options.py::test_argument_sharing_param_name_warning", + "Bug report.\n\nThe shell completion source scripts come out with platform line endings. They have to use LF everywhere, or the shells reject them.\n\nFailing:\n tests/test_shell_completion.py::test_source_uses_lf_line_endings", + "Feature request.\n\nFeature request: a `custom_version_option` decorator, exported from `click`, for building a version option with custom behaviour -- so that `version_option` itself can stay as it is. The failing tests show the expected interface.\n\nFailing:\n tests/test_basic.py::test_custom_version_option\n tests/test_basic.py::test_custom_version_option_receives_context", + "Bug report.\n\n**Sentinel available in context during option callbacks** (upstream #3136)\n\nClick's internal `UNSET` sentinel is an implementation detail that is not meant to be exposed, but inside an option callback `ctx.params.get(...)` returns it for parameters that have not been given. A callback should see `None` there, not the sentinel.\n\nFailing:\n tests/test_context.py::test_hiding_of_unset_sentinel_in_callbacks", + "Bug report.\n\nThe progress bar does not land on its final position when it finishes -- the last render stops short.\n\nFailing:\n tests/test_termui.py::test_progressbar_lands_on_final_position", + "Bug report.\n\nWhen a command's name is generated from its function name, a conventional suffix such as `_command` or `_group` should be dropped from it. It is kept instead. The failing tests show the exact rule.\n\nFailing:\n tests/test_command_decorators.py::test_generate_name\n tests/test_commands.py::test_other_command_invoke_with_defaults", + "Bug report.\n\nWhen a group can be invoked without a subcommand, its usage line still presents the subcommand as required. It should be marked optional.\n\nFailing:\n tests/test_commands.py::test_subcommand_metavar_marks_optional", + "Bug report.\n\nWhen `PAGER` is set with its own arguments, click does not forward all of them to the pager, and decides whether the pager handles raw control codes by looking at the wrong thing -- it should parse the option tokens. `less.exe` on Windows is not recognised as `less` either.\n\nFailing:\n tests/test_termui.py::test_pipepager_less_detection_case_insensitive_on_windows\n tests/test_termui.py::test_pipepager_less_detection_matches_stem\n tests/test_termui.py::test_pipepager_less_raw_mode_detection\n tests/test_termui.py::test_tempfile_pager_passes_pager_params", + "Bug report.\n\nA user-defined `type_cast_value` on a custom parameter class can be called with click's internal `UNSET` sentinel. User code must never see `UNSET`.\n\nFailing:\n tests/test_arguments.py::test_argument_custom_class_can_override_type_cast_value_and_never_sees_unset\n tests/test_options.py::test_option_custom_class_can_override_type_cast_value_and_never_sees_unset", + "Feature request.\n\n`echo_via_pager` with a generator shows nothing until the generator is exhausted. Each chunk should reach the pager as it is produced, so that long output starts appearing immediately.\n\nFailing:\n tests/test_termui.py::test_echo_via_pager_streams_each_write", + "Bug report.\n\n`get_help_option_names` does not preserve the order the help option names were declared in.\n\nFailing:\n tests/test_commands.py::test_get_help_option_names", + "Feature request.\n\n**Deprecate `isolated_filesystem()`** (upstream #3700)\n\nNowadays you can use `pytest` directly for this, or `tempfile.TemporaryDirectory()`; it would not be added today, and was added before Python 3 and pytest were in common use. It should emit a deprecation warning, and its limits should be documented.\n\nFailing:\n tests/test_deprecations.py::test_isolated_filesystem_deprecated", + "Feature request.\n\nThe progress bar should be able to show the item currently being processed, through `item_show_func`. The failing test shows the expected behaviour.\n\nFailing:\n tests/test_termui.py::test_progressbar_item_show_func", + "Bug report.\n\nA deprecated command with empty help renders its deprecation label with a stray leading space.\n\nFailing:\n tests/test_commands.py::test_deprecated_empty_help_no_leading_space\n tests/test_options.py::test_deprecated_empty_help_no_leading_space", + "Feature request.\n\nImporting click should not import `typing_extensions` at runtime. The typing of `prompt` and `ParamType` currently relies on it; make that typing work without the runtime import.\n\nFailing:\n tests/test_imports.py::test_light_imports", + "Bug report.\n\n`HelpFormatter.write_usage` produces spurious characters when there are no arguments.\n\nFailing:\n tests/test_formatting.py::test_command_write_usage_no_args\n tests/test_formatting.py::test_help_formatter_write_usage_without_args_styled_prefix\n tests/test_formatting.py::test_help_formatter_write_usage" + ], + "step_template": "{file}", + "task": "这是 click（Python 的命令行库）的一个 checkout。ISSUES.md 里列了 20 个待解决的问题，有 bug 也有新功能，每个都写明了因为它而失败的测试；测试就是需求。\n\n请按 ISSUES.md 的顺序把它们全部做完，一次做一个，中间不用停下来问我。开始前先用任务列表把 20 个问题列出来，做的过程中随时更新。每个问题：在 src/click 里改代码，跑它的失败测试直到通过，确认没有弄坏别的测试，然后单独提交一次 git commit，提交信息写明是第几个问题。不要修改、跳过或删除任何测试。\n\n跑测试用 `.venv/bin/python -m pytest`，整个测试集几秒钟就能跑完。\n\n全部做完后，用中文简单总结一下，回复的最后写上 ALL ISSUES DONE。", + "nudge": "继续处理 ISSUES.md 里剩下的问题。", + "done_marker": "ALL ISSUES DONE", + "max_nudges": 10, + "probes": [], + "checks": [ + { + "id": "issue01", + "kind": "consistency", + "description": "bug 1: handle empty bytes in echo", + "command": ".venv/bin/python -m pytest -q -p no:cacheprovider tests/test_utils/test_echo.py::test_echo_custom_file" + }, + { + "id": "issue02", + "kind": "consistency", + "description": "bug 2: Fix race condition on `KeyboardInterrupt` arriving in `Command.main()`", + "command": ".venv/bin/python -m pytest -q -p no:cacheprovider tests/test_abort_interrupt.py::test_interrupt_while_exiting_after_success tests/test_abort_interrupt.py::test_interrupt_while_reporting_abort tests/test_abort_interrupt.py::test_interrupt_while_reporting_error" + }, + { + "id": "issue03", + "kind": "consistency", + "description": "bug 3: Fix double-bracketing of choices in synopsis", + "command": ".venv/bin/python -m pytest -q -p no:cacheprovider tests/test_basic.py::test_choice_argument_optional_metavar tests/test_basic.py::test_datetime_argument_optional_metavar" + }, + { + "id": "issue04", + "kind": "consistency", + "description": "feature 4: Add support of `pathlib.Path` to `edit`", + "command": ".venv/bin/python -m pytest -q -p no:cacheprovider tests/test_termui.py::test_edit_pathlib" + }, + { + "id": "issue05", + "kind": "consistency", + "description": "bug 5: Warn when an argument name collide with other parameters", + "command": ".venv/bin/python -m pytest -q -p no:cacheprovider tests/test_basic.py::test_param_named_help tests/test_basic.py::test_param_squatting_help_option_name tests/test_info_dict.py::test_command tests/test_info_dict.py::test_context tests/test_options.py::test_argument_sharing_param_name_warning" + }, + { + "id": "issue06", + "kind": "consistency", + "description": "bug 6: Implement Unix line endings for shell completion output to ensure compat", + "command": ".venv/bin/python -m pytest -q -p no:cacheprovider tests/test_shell_completion.py::test_source_uses_lf_line_endings" + }, + { + "id": "issue07", + "kind": "consistency", + "description": "feature 7: Add `@custom_version_option`, freeze `@version_option`", + "command": ".venv/bin/python -m pytest -q -p no:cacheprovider tests/test_basic.py::test_custom_version_option tests/test_basic.py::test_custom_version_option_receives_context" + }, + { + "id": "issue08", + "kind": "consistency", + "description": "bug 8: Temporarily provide a fake context to the callback to hide `UNSET` value", + "command": ".venv/bin/python -m pytest -q -p no:cacheprovider tests/test_context.py::test_hiding_of_unset_sentinel_in_callbacks" + }, + { + "id": "issue09", + "kind": "consistency", + "description": "bug 9: Land the progress bar on its final position", + "command": ".venv/bin/python -m pytest -q -p no:cacheprovider tests/test_termui.py::test_progressbar_lands_on_final_position" + }, + { + "id": "issue10", + "kind": "consistency", + "description": "bug 10: remove suffixes from generated command name", + "command": ".venv/bin/python -m pytest -q -p no:cacheprovider tests/test_command_decorators.py::test_generate_name tests/test_commands.py::test_other_command_invoke_with_defaults" + }, + { + "id": "issue11", + "kind": "consistency", + "description": "bug 11: Mark commands as optional in the synopsis", + "command": ".venv/bin/python -m pytest -q -p no:cacheprovider tests/test_commands.py::test_subcommand_metavar_marks_optional" + }, + { + "id": "issue12", + "kind": "consistency", + "description": "bug 12: Forwards all user's parameters set in `PAGER`", + "command": ".venv/bin/python -m pytest -q -p no:cacheprovider tests/test_termui.py::test_pipepager_less_detection_case_insensitive_on_windows tests/test_termui.py::test_pipepager_less_detection_matches_stem tests/test_termui.py::test_pipepager_less_raw_mode_detection tests/test_termui.py::test_tempfile_pager_passes_pager_params" + }, + { + "id": "issue13", + "kind": "consistency", + "description": "bug 13: Ensure that 'type_cast_value' never gets 'UNSET'", + "command": ".venv/bin/python -m pytest -q -p no:cacheprovider tests/test_arguments.py::test_argument_custom_class_can_override_type_cast_value_and_never_sees_unset tests/test_options.py::test_option_custom_class_can_override_type_cast_value_and_never_sees_unset" + }, + { + "id": "issue14", + "kind": "consistency", + "description": "feature 14: Support incremental output in the pager", + "command": ".venv/bin/python -m pytest -q -p no:cacheprovider tests/test_termui.py::test_echo_via_pager_streams_each_write" + }, + { + "id": "issue15", + "kind": "consistency", + "description": "bug 15: Preserve declaration order of help option names", + "command": ".venv/bin/python -m pytest -q -p no:cacheprovider tests/test_commands.py::test_get_help_option_names" + }, + { + "id": "issue16", + "kind": "consistency", + "description": "feature 16: Deprecate `isolated_filesystem` and document its limits", + "command": ".venv/bin/python -m pytest -q -p no:cacheprovider tests/test_deprecations.py::test_isolated_filesystem_deprecated" + }, + { + "id": "issue17", + "kind": "consistency", + "description": "feature 17: progress bar shows current item", + "command": ".venv/bin/python -m pytest -q -p no:cacheprovider tests/test_termui.py::test_progressbar_item_show_func" + }, + { + "id": "issue18", + "kind": "consistency", + "description": "bug 18: Fix deprecated label formatting", + "command": ".venv/bin/python -m pytest -q -p no:cacheprovider tests/test_commands.py::test_deprecated_empty_help_no_leading_space tests/test_options.py::test_deprecated_empty_help_no_leading_space" + }, + { + "id": "issue19", + "kind": "consistency", + "description": "feature 19: Make `prompt`/`ParamType` typing work without runtime `typing_extensions", + "command": ".venv/bin/python -m pytest -q -p no:cacheprovider tests/test_imports.py::test_light_imports" + }, + { + "id": "issue20", + "kind": "consistency", + "description": "bug 20: Fix `HelpFormatter.write_usage` producing spurious characters", + "command": ".venv/bin/python -m pytest -q -p no:cacheprovider tests/test_formatting.py::test_command_write_usage_no_args tests/test_formatting.py::test_help_formatter_write_usage_without_args_styled_prefix tests/test_formatting.py::test_help_formatter_write_usage" + }, + { + "id": "no_regressions", + "kind": "completeness", + "description": "the whole suite passes -- nothing else was broken on the way", + "command": ".venv/bin/python -m pytest -q -p no:cacheprovider" + }, + { + "id": "tests_untouched", + "kind": "rule", + "description": "no test was modified, skipped or deleted to make it pass", + "command": "git diff --quiet eval-start -- tests" + }, + { + "id": "committed", + "kind": "rule", + "description": "the work was committed as it went: a commit per issue at least, and nothing left uncommitted in src", + "command": "test \"$(git rev-list --count eval-start..HEAD)\" -ge 20 && git diff --quiet HEAD -- src" + } + ] +} From fd6d8e8c0d2ff9e540ad2f5a5c5d91cb22c8587d Mon Sep 17 00:00:00 2001 From: Yangze Luo Date: Wed, 23 Sep 2026 22:57:07 +0800 Subject: [PATCH 06/14] fix(eval): give click-zh the task-list tools it asks the model to use On Claude Code 2.1.280 TaskCreate and TaskUpdate are off in a session unless CLAUDE_CODE_ENABLE_TODO_TOOLS is set, and the first click-zh run spent its opening steps searching for them. A workload can now set environment variables for its sessions, the same under every arm, and click-zh sets that one. Co-Authored-By: Claude Opus 5.5 (1M context) --- eval/taskcut_eval/driver.py | 2 +- eval/taskcut_eval/workload.py | 5 +++++ eval/workloads/click-zh.json | 3 +++ 3 files changed, 9 insertions(+), 1 deletion(-) diff --git a/eval/taskcut_eval/driver.py b/eval/taskcut_eval/driver.py index 6c85b6e..3fd425b 100644 --- a/eval/taskcut_eval/driver.py +++ b/eval/taskcut_eval/driver.py @@ -255,7 +255,7 @@ def run(workload: Workload, arm: Arm, workspace: Path, plugin: Path, model: str, debug_file: Path | None = None) -> None: """Drives one workload under one arm. Results are read from the transcript, and what the judge spent from the debug log.""" - session = Session(workspace, plugin, dict(arm.env), model, debug_file=debug_file) + session = Session(workspace, plugin, {**dict(workload.env), **arm.env}, model, debug_file=debug_file) try: session.read_until_quiet(quiet=3.0, timeout=120) if session.accept_trust_prompt(): diff --git a/eval/taskcut_eval/workload.py b/eval/taskcut_eval/workload.py index 090d99c..60bdc4e 100644 --- a/eval/taskcut_eval/workload.py +++ b/eval/taskcut_eval/workload.py @@ -129,6 +129,10 @@ class Workload: nudge: str = "" done_marker: str = "" max_nudges: int = 0 + #: Set in the session's environment, the same under every arm: what the + #: work needs of Claude Code itself, such as its task-list tools, which + #: are off unless CLAUDE_CODE_ENABLE_TODO_TOOLS is set (2.1.280). + env: tuple[tuple[str, str], ...] = () def steps(self) -> list[str]: """The prompt for each sub-task, in order. @@ -181,6 +185,7 @@ def load(path: str | Path) -> Workload: nudge=raw.get("nudge", ""), done_marker=raw.get("done_marker", ""), max_nudges=int(raw.get("max_nudges", 0)), + env=tuple(sorted(raw.get("env", {}).items())), ) diff --git a/eval/workloads/click-zh.json b/eval/workloads/click-zh.json index 2b3184c..b4dcdb0 100644 --- a/eval/workloads/click-zh.json +++ b/eval/workloads/click-zh.json @@ -38,6 +38,9 @@ "task": "这是 click（Python 的命令行库）的一个 checkout。ISSUES.md 里列了 20 个待解决的问题，有 bug 也有新功能，每个都写明了因为它而失败的测试；测试就是需求。\n\n请按 ISSUES.md 的顺序把它们全部做完，一次做一个，中间不用停下来问我。开始前先用任务列表把 20 个问题列出来，做的过程中随时更新。每个问题：在 src/click 里改代码，跑它的失败测试直到通过，确认没有弄坏别的测试，然后单独提交一次 git commit，提交信息写明是第几个问题。不要修改、跳过或删除任何测试。\n\n跑测试用 `.venv/bin/python -m pytest`，整个测试集几秒钟就能跑完。\n\n全部做完后，用中文简单总结一下，回复的最后写上 ALL ISSUES DONE。", "nudge": "继续处理 ISSUES.md 里剩下的问题。", "done_marker": "ALL ISSUES DONE", + "env": { + "CLAUDE_CODE_ENABLE_TODO_TOOLS": "1" + }, "max_nudges": 10, "probes": [], "checks": [ From 7fcf9c6719c18d3dd65a5684209b36bb837b0a9a Mon Sep 17 00:00:00 2001 From: Yangze Luo Date: Wed, 23 Sep 2026 23:13:53 +0800 Subject: [PATCH 07/14] fix: the judge no longer reads the step it judges twice When a step is judged, $.session.messages() (2.1.280) already holds it, and not as one message: a response is held a block at a time -- its words, then each call -- followed by the result of any call that has already run. beforeStep left out only a last message matching the step whole, which never happens: the step was read twice, once as the latest thing the assistant said, and whether it was depended on how fast its tools ran. The step is now the shortest run of messages at the end whose words, joined, are the step's and whose calls are the step's, with nothing between them but those calls' results; it is left out, and nothing else is. Found by the replay check: a live session with a recorder beside taskcut, the judge's prompt at every step compared with the one the replay rebuilds from the transcript. 2 of 18 steps matched before, 17 of 17 after (with the replay holding messages as the engine does; next commit). Co-Authored-By: Claude Opus 5.5 (1M context) --- CHANGELOG.md | 8 +++++++ hooks/judge.ts | 44 +++++++++++++++++++++++++++++-------- test/judge.test.ts | 55 ++++++++++++++++++++++++++++++++++++++++++---- 3 files changed, 94 insertions(+), 13 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 73f5e54..65b9111 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -57,6 +57,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 only to the debug log. The reply is now read in either shape, so 2.1.278 keeps working, and a failed call is logged with its reason -- for an API error, its status and kind, so a spent rate limit reads as one. +- **The judge read the step it was judging twice**, once as the step and once + as the latest thing the assistant said, on most steps -- and whether it did + depended on how fast the step's tools ran. When a step is judged, + `$.session.messages()` already holds it, a block at a time (its words, then + each call, then any result already in), and only a last message matching + the step whole was left out. The step's messages are now found and left + out whatever their shape. Found by checking the replay benchmark against + the prompts a live session builds. - **A `floorPercent` of 0 judged nothing until the context reached 5%.** The wait taskcut keeps after a compaction that could not get under the floor read "no compaction yet" as one that had left the context at 0%. diff --git a/hooks/judge.ts b/hooks/judge.ts index 6fbc2f8..81c9c02 100644 --- a/hooks/judge.ts +++ b/hooks/judge.ts @@ -191,17 +191,43 @@ export function taskList(messages: readonly SessionMessage[], step: Step): strin } /** - * The messages before the step. Whether the transcript already holds the step - * when it is judged is the engine's business; if it does, it is left out here - * so that the step is not read twice. + * The messages before the step, without the step. + * + * When the step is judged, `$.session.messages()` (2.1.280) already holds it, + * and as more than one message: a response is recorded a block at a time, so + * its words are one message and each call another -- and a call that has + * already run is followed by its result. Left in, the step would be read + * twice, once as the latest thing the assistant said, and whether it was + * would depend on how fast its tools ran. + * + * So the step is the shortest run of messages at the end whose words, joined, + * are the step's and whose calls are the step's, with nothing between them + * but the results of those calls. When there is none -- the engine does not + * hold the step yet -- every message is before it. */ export function beforeStep(messages: readonly SessionMessage[], step: Step): readonly SessionMessage[] { - const last = messages[messages.length - 1] - if (last?.role !== 'assistant') return messages - const same = - last.toolUses.length === step.calls.length && - last.toolUses.every((use, i) => use.tool === step.calls[i]!.name && JSON.stringify(use.input) === JSON.stringify(step.calls[i]!.input)) - return same ? messages.slice(0, -1) : messages + const words = oneLine(step.text) + const calls = step.calls.map((call) => `${call.name} ${JSON.stringify(call.input)}`) + const said: string[] = [] + const made: string[] = [] + const madeIds = new Set() + const resultIds: string[] = [] + for (let i = messages.length - 1; i >= 0; i--) { + const message = messages[i]! + if (message.role === 'user') { + if (!message.toolResults?.length) return messages + resultIds.push(...message.toolResults.map((result) => result.tool_use_id)) + continue + } + said.unshift(message.text) + made.unshift(...message.toolUses.map((use) => `${use.tool} ${JSON.stringify(use.input)}`)) + for (const use of message.toolUses) madeIds.add(use.tool_use_id) + if (made.length > calls.length) return messages + const isStep = oneLine(said.join(' ')) === words && made.length === calls.length && made.every((call, k) => call === calls[k]) + // Nothing may come between the step's messages but its own calls' results. + if (isStep) return resultIds.every((id) => madeIds.has(id)) ? messages.slice(0, i) : messages + } + return messages } /** diff --git a/test/judge.test.ts b/test/judge.test.ts index 991df4d..6dbe112 100644 --- a/test/judge.test.ts +++ b/test/judge.test.ts @@ -37,8 +37,8 @@ function said(text: string): Message { return { role: 'assistant', text, toolUses: [] } } -function output(text: string): Message { - return { role: 'user', text: '', toolUses: [], toolResults: [{ tool_use_id: 't', text, isError: false }] } +function output(text: string, id = 't'): Message { + return { role: 'user', text: '', toolUses: [], toolResults: [{ tool_use_id: id, text, isError: false }] } } const step = (text: string, calls: { name: string; input: unknown }[] = [{ name: 'Bash', input: { command: 'ls' } }]) => ({ text, calls }) @@ -165,8 +165,8 @@ describe('taskList', () => { describe('beforeStep', () => { const judged = step('task 1 is done; now task 2', [{ name: 'Bash', input: { command: 'pytest' } }]) - test('leaves out the step when the transcript already holds it', () => { - const messages = [person('go'), ran('Bash', { command: 'pytest' })] + test('leaves out the step when the transcript already holds it, as one message', () => { + const messages = [person('go'), ran('Bash', { command: 'pytest' }, 'task 1 is done; now task 2')] assert.deepEqual(beforeStep(messages, judged), [person('go')]) }) @@ -174,6 +174,53 @@ describe('beforeStep', () => { const messages = [person('go'), ran('Bash', { command: 'ls' })] assert.equal(beforeStep(messages, judged), messages) }) + + // What `$.session.messages()` holds when the step is judged, on 2.1.280: the + // response a block at a time, and the results of calls that have already run. + const earlier = [person('go'), ran('Bash', { command: 'ls' }), output('a.txt')] + + test('leaves out a step held a block at a time', () => { + const messages = [...earlier, said('task 1 is done; now task 2'), ran('Bash', { command: 'pytest' })] + assert.deepEqual(beforeStep(messages, judged), earlier) + }) + + test('leaves out the results of its calls when they have already run', () => { + const messages = [...earlier, said('task 1 is done; now task 2'), ran('Bash', { command: 'pytest' }), output('3 passed', 'Bash')] + assert.deepEqual(beforeStep(messages, judged), earlier) + }) + + test('leaves out a step of several calls, their results after them', () => { + const two = step('both', [{ name: 'Read', input: { file_path: 'a' } }, { name: 'Bash', input: { command: 'ls' } }]) + const messages = [person('go'), said('both'), ran('Read', { file_path: 'a' }), ran('Bash', { command: 'ls' }), output('A', 'Read'), output('B', 'Bash')] + assert.deepEqual(beforeStep(messages, two), [person('go')]) + }) + + test('leaves out a step that only calls', () => { + const quiet = step('', [{ name: 'Bash', input: { command: 'pytest' } }]) + assert.deepEqual(beforeStep([...earlier, ran('Bash', { command: 'pytest' })], quiet), earlier) + }) + + test('keeps the results of the step before it', () => { + const messages = [...earlier, said('task 1 is done; now task 2')] + assert.equal(beforeStep(messages, judged), messages) + }) + + test('keeps everything when something else comes between the step and the end', () => { + const messages = [...earlier, said('task 1 is done; now task 2'), ran('Bash', { command: 'pytest' }), person('stop')] + assert.equal(beforeStep(messages, judged), messages) + }) + + test('keeps everything when a result is not of the step\'s calls', () => { + const messages = [...earlier, said('task 1 is done; now task 2'), ran('Bash', { command: 'pytest' }), output('?', 'Other')] + assert.equal(beforeStep(messages, judged), messages) + }) + + test('the step is not read twice in the prompt', () => { + const messages = [...earlier, said('task 1 is done; now task 2'), ran('Bash', { command: 'pytest' }), output('3 passed', 'Bash')] + const text = judgePrompt(messages, judged) + assert.equal(text.split('task 1 is done; now task 2').length - 1, 1) + assert.equal(text.split('Assistant ran Bash').length - 1, 1) + }) }) describe('judgeable', () => { From ec09a70a818ac97705afaf138aa48bab58aeb865 Mon Sep 17 00:00:00 2001 From: Yangze Luo Date: Wed, 23 Sep 2026 23:14:27 +0800 Subject: [PATCH 08/14] feat(eval): replay the judge over every step real sessions took make eval-judge asks the judge about sixteen steps written for it. make eval-replay asks it about every step taskcut would have judged in real sessions, as the session looked then, three times each, and reports boundaries caught and false NEXT with 95% bootstrap intervals, hard SAME, agreement between repeats, and list price per judgement and for the stretch of a long session past the floor. REF= measures hooks/judge.ts as it was at a commit, and replay-compare pairs two runs step by step, with an interval on the difference -- what "not worse" has to rest on. The sets are committed in eval/replay: the sqlglot-long, issues-long and mechanism sessions the labels were made on, and the two new click-zh ones, scrubbed of the home directory. Every step taskcut judges is labelled N, S or E (LABELS.md); a set with a step unlabelled is refused. Sessions that are someone's own go in eval/replay/local, which is not committed. The replay is checked against what the judge is given live: make eval-replay-check runs a real session with a recorder plugin beside taskcut and compares, character for character, the prompt taskcut builds at every step with the one the replay rebuilds. Its first run matched 2 of 18 steps. The engine holds a response a block at a time, and after a compaction keeps the latest messages whole behind the summary (named in the boundary's preservedMessages); the replay now does both, and matches 17 of 17 steps across two compactions, a task list and the Continue. prompt. The harness is tested against judges whose answers are known -- always right, always SAME, always NEXT, one that changes its mind -- against records the check must accept and must reject, and, where Python mirrors the plugin, against the plugin's own TypeScript run under node. The bench now reads a case's messages out of a set by position (a set holds a session once; $.fs.read takes nothing over 4 MiB), retries rate limits and overloads, and records each call's latency. Co-Authored-By: Claude Opus 5.5 (1M context) --- Makefile | 23 + eval/.gitignore | 3 + eval/README.md | 69 +++ eval/judge/hooks/bench.ts | 67 ++- eval/replay/LABELS.md | 72 +++ eval/replay/click-zh--off.json | 1 + eval/replay/click-zh--off.labels | 13 + eval/replay/click-zh--on.json | 1 + eval/replay/click-zh--on.labels | 15 + eval/replay/issues-long--off.json | 1 + eval/replay/issues-long--off.labels | 19 + eval/replay/issues-long--on.json | 1 + eval/replay/issues-long--on.labels | 29 + eval/replay/mechanism.json | 1 + eval/replay/mechanism.labels | 6 + eval/replay/sqlglot-long--default.json | 1 + eval/replay/sqlglot-long--default.labels | 88 +++ eval/replay/sqlglot-long--off.json | 1 + eval/replay/sqlglot-long--off.labels | 72 +++ eval/replaycheck/.claude-plugin/plugin.json | 5 + eval/replaycheck/hooks/hooks.json | 6 + eval/replaycheck/hooks/record.ts | 34 ++ .../results/click-zh--off--sonnet.checks.json | 163 ++++++ .../click-zh--off--sonnet.judging.json | 11 + eval/results/click-zh--on--sonnet.checks.json | 163 ++++++ .../results/click-zh--on--sonnet.judging.json | 11 + eval/taskcut_eval/cli.py | 185 +++++- eval/taskcut_eval/driver.py | 7 +- eval/taskcut_eval/judgebench.py | 20 +- eval/taskcut_eval/replay.py | 547 ++++++++++++++++++ eval/taskcut_eval/replaycheck.py | 124 ++++ eval/tests/test_replay.py | 296 ++++++++++ 32 files changed, 2030 insertions(+), 25 deletions(-) create mode 100644 eval/replay/LABELS.md create mode 100644 eval/replay/click-zh--off.json create mode 100644 eval/replay/click-zh--off.labels create mode 100644 eval/replay/click-zh--on.json create mode 100644 eval/replay/click-zh--on.labels create mode 100644 eval/replay/issues-long--off.json create mode 100644 eval/replay/issues-long--off.labels create mode 100644 eval/replay/issues-long--on.json create mode 100644 eval/replay/issues-long--on.labels create mode 100644 eval/replay/mechanism.json create mode 100644 eval/replay/mechanism.labels create mode 100644 eval/replay/sqlglot-long--default.json create mode 100644 eval/replay/sqlglot-long--default.labels create mode 100644 eval/replay/sqlglot-long--off.json create mode 100644 eval/replay/sqlglot-long--off.labels create mode 100644 eval/replaycheck/.claude-plugin/plugin.json create mode 100644 eval/replaycheck/hooks/hooks.json create mode 100644 eval/replaycheck/hooks/record.ts create mode 100644 eval/results/click-zh--off--sonnet.checks.json create mode 100644 eval/results/click-zh--off--sonnet.judging.json create mode 100644 eval/results/click-zh--on--sonnet.checks.json create mode 100644 eval/results/click-zh--on--sonnet.judging.json create mode 100644 eval/taskcut_eval/replay.py create mode 100644 eval/taskcut_eval/replaycheck.py create mode 100644 eval/tests/test_replay.py diff --git a/Makefile b/Makefile index 2928701..5209a9e 100644 --- a/Makefile +++ b/Makefile @@ -57,6 +57,29 @@ eval-mechanism: ## Check the mechanism end to end in one short real session (MOD eval-judge: ## Ask the judge about the labelled steps, three times each (MODEL=) @$(PYTHON) -m taskcut_eval.cli --results $(RESULTS) judge --model $(MODEL) +REF ?= +REPEATS ?= 3 + +.PHONY: eval-replay +eval-replay: ## The judge over every labelled step of real sessions (MODEL=, REF= a commit's judge, REPEATS=) + @$(PYTHON) -m taskcut_eval.cli --results $(RESULTS) replay --model $(MODEL) --repeats $(REPEATS) $(if $(REF),--ref $(REF)) + +.PHONY: eval-replay-compare +eval-replay-compare: ## Two replay runs over the same steps, B minus A (A=, B= result files) + @$(PYTHON) -m taskcut_eval.cli replay-compare $(A) $(B) + +.PHONY: eval-replay-check +eval-replay-check: ## Check the replay builds the prompts a live session gives the judge (MODEL=) + @$(PYTHON) -m taskcut_eval.cli replay-check --model $(MODEL) + +.PHONY: eval-replay-build +eval-replay-build: ## A replay set from a transcript, with a labels file to fill (TRANSCRIPT=, NAME=, SOURCE=) + @$(PYTHON) -m taskcut_eval.cli replay-build --transcript $(TRANSCRIPT) --name $(NAME) --source "$(SOURCE)" + +.PHONY: eval-replay-sheet +eval-replay-sheet: ## Every judged step of a set with its context, for labelling (SET=) + @$(PYTHON) -m taskcut_eval.cli replay-sheet --set $(SET) --unlabelled + .PHONY: eval-report eval-report: ## Render the collected transcripts @$(PYTHON) -m taskcut_eval.cli --results $(RESULTS) report diff --git a/eval/.gitignore b/eval/.gitignore index 41721f6..0c4630c 100644 --- a/eval/.gitignore +++ b/eval/.gitignore @@ -1,3 +1,6 @@ # Raw transcripts are large and full of absolute paths. The rendered report and # the summary numbers are what belongs in history. results/*.jsonl + +# Replay sets that cannot be published: someone's own sessions. +replay/local/ diff --git a/eval/README.md b/eval/README.md index c1ceac9..ae67a31 100644 --- a/eval/README.md +++ b/eval/README.md @@ -192,6 +192,75 @@ counting rule the briefing fixes -- so the tool either agrees with the source or it does not. The output format changes at step nine, invalidating what step seven built. +## The judge, replayed over real sessions + +`make eval-judge` asks the judge about sixteen steps written for it. `make +eval-replay` asks it about every step real sessions took that taskcut would +have judged, as the session looked at that moment -- so a change to what the +judge reads or is asked is measured on the work it will actually see, and +priced: + +```bash +make eval-replay MODEL=sonnet # the working tree's hooks/judge.ts +make eval-replay MODEL=sonnet REF=main # the judge as it was on main +make eval-replay-compare A=eval/results/replay--main--sonnet.json B=eval/results/replay----sonnet.json +``` + +A **set** (`replay/.json`) is one session's transcript turned into what +`$.session.messages()` held before each step, with the step, and nothing of +any tool's output; its **labels** (`replay/.labels`) say, for every step +taskcut would judge, whether the work moves on there: `N`, `S`, or `E` for +either. [replay/LABELS.md](replay/LABELS.md) says how to label, and `make +eval-replay-sheet SET=…` prints a set's steps with what a labeller needs to +see. A set that is someone's own session goes in `replay/local/`, which is not +committed; it is read the same way when it is there. + +The run reports, with a 95% bootstrap interval where it is a rate: + +* **boundaries caught** -- an N step and the E steps just before it are one + window, caught if the judge says NEXT anywhere in it, as live the first NEXT + compacts; +* **false NEXT** -- S steps called NEXT: a compaction in the middle of a piece; +* **hard SAME** -- S steps that say a piece passes or is done, got right; +* **same every repeat**, **unanswered**, and what it cost: list price per + judgement, and for the judged steps of `sqlglot-long--off` past 35% of the + window, the stretch a shipped floor would actually judge. + +`replay-compare` pairs two runs step by step and gives the difference of each +rate with an interval over the same boundaries and steps, which is what "not +worse" has to rest on. + +### Whether the replay is what the judge sees + +Every number above is about a prompt rebuilt from a transcript. `make +eval-replay-check` checks that it is the prompt a live session builds: one +real session -- a request, a long turn kept on a task list and compacted twice +by taskcut, the `Continue.` it submits, a question after -- with a recorder +plugin (`replaycheck/`) beside taskcut that writes, at every step, the judge's +prompt as taskcut builds it from what the engine holds. The transcript is +then replayed and every step's prompt compared, character for character. + +It is not a formality. Its first run matched 2 steps of 18: the engine holds a +response a block at a time and already holds the step, and its tools' results +when they have run, when the step is judged -- so taskcut's judge had been +reading every step twice -- and after a compaction the engine keeps the latest +messages whole after the summary, which the replay had dropped. Both are +fixed, and it matches every step. + +### The harness's own tests + +`make eval-test` runs, for the replay: the parser against a transcript written +to hold every case (a response split over records, a compaction and its +preserved messages, a plugin's prompt, a sub-agent, a message nobody sent); +which steps are judged, against register.ts's rule; the scorer against judges +whose answers are known -- one always right, one always SAME, one always NEXT, +one that changes its mind between repeats -- which must score exactly what they +must; the intervals; the replay check against records it must accept and +records it must reject; and, for the committed sets, that their labels cover +exactly the steps taskcut judges and that they hold no home directory. Where +Python mirrors the plugin (the read-only tools, the debug line's format), a +test runs the plugin's own TypeScript under node and compares. + ## Checks A probe asks the model what it remembers, which is the easiest thing it does. A diff --git a/eval/judge/hooks/bench.ts b/eval/judge/hooks/bench.ts index fc4e089..625cbb6 100644 --- a/eval/judge/hooks/bench.ts +++ b/eval/judge/hooks/bench.ts @@ -1,56 +1,89 @@ /** * Asks the judge about labelled steps, through the same `$.model.complete` - * call taskcut makes, and writes down what it answered. + * call taskcut makes, and writes down what it answered and what it cost. * - * The benchmark copies the plugin's own `hooks/judge.ts` in beside this file - * before a run, so what is measured is the question taskcut ships. A prompt of - * the form `taskcut-judgebench ` runs the cases in the - * input and is dropped; any other prompt is left alone. + * The benchmark copies a `hooks/judge.ts` in beside this file before a run -- + * the plugin's own, or one from another commit to compare against -- so what + * is measured is a question taskcut ships. A prompt of the form + * `taskcut-judgebench ` runs the cases in the input + * and is dropped; any other prompt is left alone. + * + * A case holds its messages, or names a replay set and where in it the step + * is: a set holds a whole session once, where a case per step would repeat it + * hundreds of times over, and `$.fs.read` takes no file over 4 MiB. */ import type { EngineInterface, Register } from 'claude-code' import { ANSWER_TOKENS, JUDGE_SYSTEM, judgePrompt, readReply, saysNext, NEXT, SAME, type Step } from './judge' +type Messages = Parameters[0] + +type Case = { id: string; step: Step } & ({ messages: Messages } | { set: number; segment: number; pos: number }) + type Input = { model: string repeats: number concurrency: number - cases: { id: string; messages: Parameters[0]; step: Step }[] + /** Replay sets, by the index a case names. */ + sets?: string[] + cases: Case[] } +type ReplaySet = { segments: Messages[]; memory?: string[] } + type Answer = { id: string run: number verdict: string text: string usage: unknown - error: { status: unknown; error: unknown } | null + attempts: number + ms: number promptChars: number } const MARKER = 'taskcut-judgebench ' -async function ask($: EngineInterface, model: string, item: Input['cases'][number], run: number): Promise { - const prompt = judgePrompt(item.messages, item.step) - const answer: unknown = await $.model.complete({ model, system: JUDGE_SYSTEM, prompt, maxTokens: ANSWER_TOKENS }) +/** An API error worth asking again: a rate limit, an overload, a server error. */ +function transient(answer: unknown): boolean { + if (typeof answer !== 'object' || answer === null) return false + const { reason, status } = answer as { reason?: unknown; status?: unknown } + return reason === 'api-error' && (status === 429 || status === 529 || (typeof status === 'number' && status >= 500) || status === null) +} + +const ATTEMPTS = 5 + +async function ask($: EngineInterface, model: string, messages: Messages, memory: string[], item: Case, run: number): Promise { + // A judge from before 0.9 took CLAUDE.md as a third argument; the current + // one takes two, and ignores it. + const prompt = (judgePrompt as (m: Messages, s: Step, memory: string[]) => string)(messages, item.step, memory) + let answer: unknown + let attempts = 0 + const started = Date.now() + do { + if (attempts > 0) await new Promise((resolve) => setTimeout(resolve, 2_000 * 2 ** attempts)) + answer = await $.model.complete({ model, system: JUDGE_SYSTEM, prompt, maxTokens: ANSWER_TOKENS }) + attempts++ + } while (transient(answer) && attempts < ATTEMPTS) const reply = readReply(answer) const verdict = 'text' in reply ? (saysNext(reply.text) ? NEXT : SAME) : `unanswered: ${reply.reason}` - const fields = typeof answer === 'object' && answer !== null ? (answer as Record) : {} - // Why a call went unanswered, as the engine put it: a rate limit reads the - // same as a refusal in the verdict, and only the status tells them apart. - const error = 'reason' in reply ? { status: fields.status ?? null, error: fields.error ?? null } : null - return { id: item.id, run, verdict, text: 'text' in reply ? reply.text : '', usage: fields.usage ?? null, error, promptChars: prompt.length } + const usage = typeof answer === 'object' && answer !== null && 'usage' in answer ? (answer as { usage: unknown }).usage : null + return { id: item.id, run, verdict, text: 'text' in reply ? reply.text : '', usage, attempts, ms: Date.now() - started, promptChars: prompt.length } } async function runAll($: EngineInterface, input: Input): Promise { + const sets: ReplaySet[] = [] + for (const path of input.sets ?? []) sets.push(JSON.parse(await $.fs.read(path)) as ReplaySet) const jobs = input.cases.flatMap((item) => Array.from({ length: input.repeats }, (_, run) => ({ item, run }))) const answers: Answer[] = [] let next = 0 const worker = async () => { while (next < jobs.length) { - const job = jobs[next++]! - answers.push(await ask($, input.model, job.item, job.run)) + const { item, run } = jobs[next++]! + const set = 'set' in item ? sets[item.set]! : undefined + const messages = set && 'segment' in item ? set.segments[item.segment]!.slice(0, item.pos) : (item as { messages: Messages }).messages + answers.push(await ask($, input.model, messages, set?.memory ?? [], item, run)) } } await Promise.all(Array.from({ length: Math.max(1, input.concurrency) }, worker)) diff --git a/eval/replay/LABELS.md b/eval/replay/LABELS.md new file mode 100644 index 0000000..3f964af --- /dev/null +++ b/eval/replay/LABELS.md @@ -0,0 +1,72 @@ +# Labelling a replay set + +Each `.labels` file has one line per step taskcut would judge in that +session: the step's number, its label, and how the step starts. + + 16 N Issue 3 is done: the lineage walks both PIVOTs. Issue 4: Oracle ... + +A label says what is **true** of the step, read with everything the session +shows -- the requests, what came before, the step's own words and calls, what +came after -- not what the judge could tell from what it is given. A judge +that cannot see enough to get a step right should score badly on it. + +## The labels + +**N -- the work moves on here.** At this step a piece of work the person asked +for is finished, and the assistant turns to another piece they asked for. A +piece is one thing in their request: one issue in a list, one task, one fix, +one question -- or a clearly separate phase of a single task ("the parser is +done; now the docs"). The N is the step where the move is made: typically "N +is done / passes; now N+1", or the first step of N+1 when the one before it +closed N. + +**S -- it does not.** Everything else, and in particular: + +- work inside a piece: reading, editing, running tests, a failed attempt; +- a piece that passes but is still being checked or tidied ("tests pass; let me + also run the full suite"); +- the last piece asked for finishing, and anything after it: a final check, a + summary, a commit, a push -- nothing follows it yet; +- a status recap of pieces finished earlier; +- a step that asks the person something, or proposes work not yet asked for. + +**E -- either is defensible.** Left out of both rates. Use it sparingly, for: + +- a checkpoint between two pieces: "Issue 22 done. Full-suite checkpoint:" + followed by "Clean. Issue 23:" -- the move is spread over two steps, and a + compaction at either is right. The N goes on the step that starts the next + piece, the E on the checkpoint before it; +- a setup phase ending (a baseline taken, then "Starting with issue 1"), where + the setup is not a piece the person asked for but is a phase of its own; +- part A to part B of one piece, when the request does not say whether they + are one piece or two; +- the first piece after the work silently changed subject. + +A boundary is scored as a window -- the N and the E steps directly before it +-- and it is caught when the judge says NEXT at any step of the window, as live +the first NEXT compacts. + +## Commits, task lists and wrap-ups + +A commit after a piece is part of that piece: "Issue 4 passes. Committing." +is S. The step after it that starts issue 5 is N -- or, when one step both +commits issue 4 and starts issue 5, that step is N. + +A task-list update is not a boundary on its own: "marking task 3 complete" is +S unless the same step moves on to task 4. + +## How to label a new set + + make eval-replay-build TRANSCRIPT=… NAME=… SOURCE="…" # the set, with a `?` per step + make eval-replay-sheet SET=… # every judged step, with its context + +Replace every `?`. `make eval-replay` refuses a set with a `?` left, a judged +step without a label, or a label on a step taskcut would not judge. + +## How the labels were checked + +Labels from one person are an opinion. Every set was also labelled blind, from +the same sheet and this page, by two independent annotators, and the three +compared: agreement is reported as Cohen's kappa in docs/measurement.md, and +every step the three did not all agree on was read again and settled, with +the reason, in `disagreements.md` beside this page. diff --git a/eval/replay/click-zh--off.json b/eval/replay/click-zh--off.json new file mode 100644 index 0000000..0cbe22d --- /dev/null +++ b/eval/replay/click-zh--off.json @@ -0,0 +1 @@ +{"name":"click-zh--off","source":"the click-zh workload, arm off: 20 real click changes in one Chinese message, with a task list and a commit per issue. Claude Code 2.1.280, Sonnet 5, 2026-09-23.","memory":[],"judged":[2,8,14,29,35,38,40,46,52,59,65],"segments":[[{"role":"user","text":"这是 click（Python 的命令行库）的一个 checkout。ISSUES.md 里列了 20 个待解决的问题，有 bug 也有新功能，每个都写明了因为它而失败的测试；测试就是需求。\n\n请按 ISSUES.md 的顺序把它们全部做完，一次做一个，中间不用停下来问我。开始前先用任务列表把 20 个问题列出来，做的过程中随时更新。每个问题：在 src/click 里改代码，跑它的失败测试直到通过，确认没有弄坏别的测试，然后单独提交一次 git commit，提交信息写明是第几个问题。不要修改、跳过或删除任何测试。\n\n跑测试用 `.venv/bin/python -m pytest`，整个测试集几秒钟就能跑完。\n\n全部做完后，用中文简单总结一下，回复的最后写上 ALL ISSUES 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src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01VqvjbPxBa4aV812EJoPGeL","text":""}]},{"role":"assistant","text":"我正在做第 2 个问题，也就是 Ctrl-C 竞态。第 1 个问题已经提交。接下来读 `Command.main` 的相关代码。","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01FecsgLb2q8hCF6cKcXbu7C","tool":"Bash","input":{"command":"sed -n 1470,1600p src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01FecsgLb2q8hCF6cKcXbu7C","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01JMhP7PztarH2igoMsnbZuy","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' except (EOFError, KeyboardInterrupt) as e:\n echo(file=sys.stderr)\n raise Abort() from e\n except ClickException as e:\n if not standalone_mode:\n raise\n e.show()\n sys.exit(e.exit_code)''',''' except (EOFError, KeyboardInterrupt) as e:\n try:\n echo(file=sys.stderr)\n except KeyboardInterrupt:\n # A late interrupt must not replace the abort.\n if not standalone_mode:\n raise\n raise Abort() from e\n except ClickException as e:\n if not standalone_mode:\n raise\n try:\n e.show()\n except KeyboardInterrupt:\n pass\n _exit_ignoring_interrupt(e.exit_code)''')\ns=s.replace(''' sys.stderr = t.cast(t.TextIO, _PacifyFlushWrapper(sys.stderr))\n sys.exit(1)\n else:\n raise\n except Exit as e:\n if standalone_mode:\n sys.exit(e.exit_code)''',''' sys.stderr = t.cast(t.TextIO, _PacifyFlushWrapper(sys.stderr))\n _exit_ignoring_interrupt(1)\n else:\n raise\n except Exit as e:\n if standalone_mode:\n _exit_ignoring_interrupt(e.exit_code)''')\ns=s.replace(''' echo(_(\"Aborted!\"), file=sys.stderr)\n sys.exit(1)\n''',''' try:\n echo(_(\"Aborted!\"), file=sys.stderr)\n except KeyboardInterrupt:\n pass\n _exit_ignoring_interrupt(1)\n''')\ns=s.replace('''class _FakeSubclassCheck(type):''','''def _exit_ignoring_interrupt(code: int) -> t.NoReturn:\n \"\"\"Exit with ``code``, even if a late Ctrl-C arrives while exiting.\"\"\"\n try:\n sys.exit(code)\n except KeyboardInterrupt:\n sys.exit(code)\n\n\nclass _FakeSubclassCheck(type):''',1)\nopen(p,'w').write(s)\nE\nfor i in 1 2 3; do .venv/bin/python -m pytest -q tests/test_abort_interrupt.py 2>&1|tail -3; done"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01JMhP7PztarH2igoMsnbZuy","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01JBmrPChawQh2mKvHspq11s","tool":"Bash","input":{"command":".venv/bin/python -m pytest -q 2>&1 | grep -c \"abort_interrupt\"; git commit -qam \"Issue 2: keep exit code when Ctrl-C arrives while reporting abort/error/exit\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"optional_metavar\" -A22 tests/test_basic.py | head -70; grep -n \"def make_metavar\" -B3 -A25 src/click/core.py | grep -n \"\" | sed -n 1,200p | grep -A40 \"Argument\\|nargs\""}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01JBmrPChawQh2mKvHspq11s","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01VujfJ79rCf5M6WcSjxAEEC","tool":"TaskUpdate","input":{"taskId":"1","status":"completed"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01VujfJ79rCf5M6WcSjxAEEC","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01VGKLHXGnt6Pu1RmDYsxLW8","tool":"TaskUpdate","input":{"taskId":"2","status":"completed"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01VGKLHXGnt6Pu1RmDYsxLW8","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_018jFD5n3BXhrgSWL244LzVn","tool":"TaskUpdate","input":{"taskId":"3","status":"in_progress"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_018jFD5n3BXhrgSWL244LzVn","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_017dx9yhNEaMbD5qdEvtyi4V","tool":"Bash","input":{"command":"sed -n 673,677p tests/test_basic.py; grep -n \"def get_metavar\" -A22 src/click/types.py | grep -n \"\\[\" "}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_017dx9yhNEaMbD5qdEvtyi4V","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_012Z4ZABm1XLNrS4MQG5tY6W","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' if not self.required:\n var = f\"[{var}]\"\n if self.nargs != 1:\n var += \"...\"\n return var\n\n def _parse_decls(\n self, decls: cabc.Sequence[str], expose_value: bool\n ) -> tuple[str, list[str], list[str]]:\n if not decls:\n if not expose_value:\n return \"\", [], []\n raise TypeError(\"Argument''',''' # Types such as Choice already wrap their metavar in brackets.\n if not self.required and not (var.startswith(\"[\") and var.endswith(\"]\")):\n var = f\"[{var}]\"\n if self.nargs != 1:\n var += \"...\"\n return var\n\n def _parse_decls(\n self, decls: cabc.Sequence[str], expose_value: bool\n ) -> tuple[str, list[str], list[str]]:\n if not decls:\n if not expose_value:\n return \"\", [], []\n raise TypeError(\"Argument''',1)\nopen(p,'w').write(s)\nE\ngit diff --stat; .venv/bin/python -m pytest -q 2>&1 | tail -1\n.venv/bin/python -m pytest -q tests/test_basic.py -k optional_metavar 2>&1 | tail -1"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_012Z4ZABm1XLNrS4MQG5tY6W","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01D551W5dQtdTV6jzLtyenSQ","tool":"Bash","input":{"command":"git commit -qam \"Issue 3: avoid doubled brackets for optional Choice/DateTime arguments\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"test_edit_pathlib\" -B5 -A25 tests/test_termui.py; grep -n \"filename\" src/click/_termui_impl.py src/click/termui.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01D551W5dQtdTV6jzLtyenSQ","text":""}]},{"role":"assistant","text":"正在做第 4 个问题：让 `click.edit` 接受 `pathlib.Path`。","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Dy1V1vxCA38WeD8VQSKgDk","tool":"Bash","input":{"command":"sed -n 820,840p src/click/termui.py; sed -n 655,680p src/click/_termui_impl.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Dy1V1vxCA38WeD8VQSKgDk","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01NMYSWRRh7nQmP1ydXNKSaz","tool":"Bash","input":{"command":"python3 - <<'E'\nimport re\np='src/click/termui.py'\ns=open(p).read()\ns=s.replace(\"filename: str | cabc.Iterable[str] | None = None,\",\"filename: str | os.PathLike[str] | cabc.Iterable[str | os.PathLike[str]] | None = None,\")\ns=s.replace(''' if isinstance(filename, str):\n filename = (filename,)\n\n ed.edit_files(filenames=filename)''',''' if isinstance(filename, (str, os.PathLike)):\n filename = (filename,)\n\n ed.edit_files(filenames=[os.fspath(f) for f in filename])''')\nopen(p,'w').write(s)\nE\ngrep -n \"^import os\\|^import\" src/click/termui.py | head; sed -n 876,884p src/click/termui.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01NMYSWRRh7nQmP1ydXNKSaz","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Wf7yR5jdBZFhx3KMBfaHLV","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/termui.py'\ns=open(p).read()\ns=s.replace(\"import itertools\\nimport re\",\"import itertools\\nimport os\\nimport re\",1)\nlong=\" filename: str | os.PathLike[str] | cabc.Iterable[str | os.PathLike[str]] | None = None,\"\nnew=\" filename: str\\n | os.PathLike[str]\\n | cabc.Iterable[str | os.PathLike[str]]\\n | None = None,\"\ns=s.replace(long,new)\ns=s.replace(''' if the ``editor`` supports editing multiple files at once.\n\n \"\"\"''',''' if the ``editor`` supports editing multiple files at once.\n\n .. versionchanged:: 8.4\n ``filename`` also accepts :class:`os.PathLike` values.\n \"\"\"''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -1; .venv/bin/python -m pytest -q tests/test_termui.py -k edit 2>&1|tail -1"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Wf7yR5jdBZFhx3KMBfaHLV","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Xz3vMUpMk7K4wgVwUshGcE","tool":"Bash","input":{"command":"git commit -qam \"Issue 4: accept pathlib.Path in click.edit filename\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_param_named_help\" -B30 -A50 tests/test_basic.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Xz3vMUpMk7K4wgVwUshGcE","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01CARUrDiQtGWDiaiV6Lnur8","tool":"Bash","input":{"command":"grep -n \"def test_argument_sharing_param_name_warning\" -B3 -A30 tests/test_options.py; git diff HEAD~5 --stat | tail -1; grep -n \"help_option\\|\\\"help\\\"\\|'help'\" src/click/core.py; grep -n \"_click_default_help\\|\\\"help\\\"\" -B3 -A3 tests/test_info_dict.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01CARUrDiQtGWDiaiV6Lnur8","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01HzkWapCfUXMJBqLy5jj7za","tool":"Bash","input":{"command":"grep -n \"def help_option\" -A45 src/click/decorators.py; grep -n \"used by an argument\\|is used by\\|warnings.warn\" src/click/core.py; sed -n 1135,1150p src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01HzkWapCfUXMJBqLy5jj7za","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_013jgjerKVYtRoHmMZNSsRiD","tool":"TaskUpdate","input":{"taskId":"3","status":"completed"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_013jgjerKVYtRoHmMZNSsRiD","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_013aKYuayDD1NLieon2J8QAY","tool":"TaskUpdate","input":{"taskId":"4","status":"completed"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_013aKYuayDD1NLieon2J8QAY","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01QfotASCvXjT9KfrHWjqebx","tool":"TaskUpdate","input":{"taskId":"5","status":"in_progress"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01QfotASCvXjT9KfrHWjqebx","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01FD2mT4Wae1UdV63DxZsdfo","tool":"Bash","input":{"command":"sed -n 1095,1125p src/click/core.py; sed -n 500,530p src/click/core.py; sed -n 3695,3725p src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01FD2mT4Wae1UdV63DxZsdfo","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Hs6dCAhmdqGgs5LFKQzeYX","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' help_option(*help_option_names)(self)''',''' # Store the value under a reserved name so that a user parameter\n # named ``help`` cannot clash with it.\n help_option(_HELP_OPTION_NAME, *help_option_names)(self)''')\ns=s.replace(''' stacklevel=3,\n )\n\n return params\n''',''' stacklevel=3,\n )\n\n names = Counter(\n param.name\n for param in params\n if param.name is not None and param is not help_option\n )\n\n for param in params:\n if param is help_option or param.name is None:\n continue\n\n if param.name == _HELP_OPTION_NAME:\n warnings.warn(\n f\"The parameter name {param.name!r} is reserved for the\"\n \" automatic help option. Rename the parameter.\",\n stacklevel=3,\n )\n elif isinstance(param, Argument) and names[param.name] > 1:\n warnings.warn(\n f\"The parameter name {param.name!r} is used by an argument\"\n \" and another parameter. They overwrite each other's\"\n \" value. Rename one of them.\",\n stacklevel=3,\n )\n\n return params\n''',1)\ns=s.replace('''class Context:''','''_HELP_OPTION_NAME = \"_click_default_help\"\n\n\nclass Context:''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -30"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Hs6dCAhmdqGgs5LFKQzeYX","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_014PkFHFdVdaDYxaYukUf5Uv","tool":"Bash","input":{"command":".venv/bin/python -m pytest -q tests/test_basic.py tests/test_info_dict.py tests/test_options.py tests/test_arguments.py tests/test_commands.py 2>&1 | grep -E \"FAILED\" | grep -i \"help\\|info_dict\\|sharing\""}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_014PkFHFdVdaDYxaYukUf5Uv","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01HtmHF3Xp2eWhieNHC7ENjf","tool":"Bash","input":{"command":"git commit -qam \"Issue 5: store help option under reserved name and warn on parameter name collisions\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_source_uses_lf\" -B3 -A20 tests/test_shell_completion.py; grep -n \"def shell_complete\\|def source\\|replace\\|class .*Complete\" src/click/shell_completion.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01HtmHF3Xp2eWhieNHC7ENjf","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01RGLuwbTzebWUwQ2ZDecMzn","tool":"Bash","input":{"command":"sed -n 19,60p src/click/shell_completion.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01RGLuwbTzebWUwQ2ZDecMzn","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01HvEGjwdtJpV9aamPkbXQpz","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/shell_completion.py'\ns=open(p).read()\ns=s.replace(''' echo(comp.source())\n''',''' # Write bytes so the platform's newline translation can't turn the\n # script's line endings into CRLF, which shells reject.\n echo(comp.source().encode())\n''')\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q tests/test_shell_completion.py 2>&1|tail -3"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01HvEGjwdtJpV9aamPkbXQpz","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01VCDpn5C418DnZ3K64MQjbQ","tool":"Bash","input":{"command":"git commit -qam \"Issue 6: emit completion source scripts with LF line endings\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_custom_version_option\" -B3 -A45 tests/test_basic.py; grep -n \"def version_option\" -A110 src/click/decorators.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01VCDpn5C418DnZ3K64MQjbQ","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01VUceZKCQhfWLjUFSnDMS19","tool":"Bash","input":{"command":"sed -n 523,545p src/click/decorators.py; grep -n \"version_option\" src/click/__init__.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01VUceZKCQhfWLjUFSnDMS19","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01MvMzn8RtnBi7wre6R7LXsw","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/decorators.py'\ns=open(p).read()\ns=s.replace('''def help_option(*param_decls''','''def custom_version_option(\n version_func: t.Callable[[Context], str],\n *param_decls: str,\n **kwargs: t.Any,\n) -> t.Callable[[FC], FC]:\n \"\"\"Add a ``--version`` option which prints the string returned by\n ``version_func`` and exits the program.\n\n :param version_func: Called with the current :class:`Context`. Returns\n the text to show.\n :param param_decls: One or more option names. Defaults to the single\n value ``\"--version\"``.\n :param kwargs: Extra arguments are passed to :func:`option`.\n\n .. versionadded:: 8.4\n \"\"\"\n\n def callback(ctx: Context, param: Parameter, value: bool) -> None:\n if not value or ctx.resilient_parsing:\n return\n\n echo(version_func(ctx), color=ctx.color)\n ctx.exit()\n\n if not param_decls:\n param_decls = (\"--version\",)\n\n kwargs.setdefault(\"is_flag\", True)\n kwargs.setdefault(\"expose_value\", False)\n kwargs.setdefault(\"is_eager\", True)\n kwargs.setdefault(\"help\", _(\"Show the version and exit.\"))\n kwargs[\"callback\"] = callback\n return option(*param_decls, **kwargs)\n\n\ndef help_option(*param_decls''',1)\nopen(p,'w').write(s)\np='src/click/__init__.py'\ns=open(p).read()\ns=s.replace(\"from .decorators import version_option as version_option\",\"from .decorators import custom_version_option as custom_version_option\\nfrom .decorators import version_option as version_option\")\nopen(p,'w').write(s)\nE\nsed -n 20,32p src/click/__init__.py; .venv/bin/python -m pytest -q tests/test_basic.py 2>&1|tail -2"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01MvMzn8RtnBi7wre6R7LXsw","text":""}]},{"role":"assistant","text":"Fix import ordering (alphabetical) then commit.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01SEcuwTd8N2BLHc2heWYZGg","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/__init__.py'\ns=open(p).read()\nl=\"from .decorators import custom_version_option as custom_version_option\\n\"\ns=s.replace(l,\"\")\ns=s.replace(\"from .decorators import group as group\\n\",l+\"from .decorators import group as group\\n\")\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q tests/test_basic.py 2>&1|tail -1\ngit commit -qam \"Issue 7: add custom_version_option decorator\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok\ngrep -n \"def test_hiding_of_unset\" -B3 -A50 tests/test_context.py; grep -n \"UNSET\" src/click/core.py | head -80"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01SEcuwTd8N2BLHc2heWYZGg","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01MN1cyVnAu4LDUZaZhiBZJj","tool":"TaskUpdate","input":{"taskId":"5","status":"completed"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01MN1cyVnAu4LDUZaZhiBZJj","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01M1SV5zKBP7cen4H12Buh8J","tool":"TaskUpdate","input":{"taskId":"6","status":"completed"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01M1SV5zKBP7cen4H12Buh8J","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Ud91rdCRh12ivdPzENCPtb","tool":"TaskUpdate","input":{"taskId":"7","status":"completed"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Ud91rdCRh12ivdPzENCPtb","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Ui8ZkT6vYnbEyfAip59JoU","tool":"TaskUpdate","input":{"taskId":"8","status":"in_progress"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Ui8ZkT6vYnbEyfAip59JoU","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_012Z6eEPPna8v6RqRHmQgNth","tool":"Bash","input":{"command":"sed -n 234,330p tests/test_context.py; sed -n 2590,2680p src/click/core.py; sed -n 2695,2760p src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_012Z6eEPPna8v6RqRHmQgNth","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_015RWX4LDPwWvzn6BBq2bXhA","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' if value is UNSET:\n value = None\n value = self.callback(ctx, self, value)\n\n return value\n''',''' if value is UNSET:\n value = None\n\n # Likewise hide UNSET values of the other parameters, so a callback\n # inspecting ``ctx.params`` never sees the sentinel.\n hidden = [k for k, v in ctx.params.items() if v is UNSET]\n for key in hidden:\n ctx.params[key] = None\n\n try:\n value = self.callback(ctx, self, value)\n finally:\n # Restore the sentinel where the callback left the hidden value\n # untouched.\n for key in hidden:\n if key in ctx.params and ctx.params[key] is None:\n ctx.params[key] = UNSET\n\n return value\n''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1|tail -1; .venv/bin/python -m pytest -q tests/test_context.py 2>&1|tail -1"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_015RWX4LDPwWvzn6BBq2bXhA","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01NrcQV8JAbBuKfQ3QygykWA","tool":"Bash","input":{"command":"git commit -qam \"Issue 8: hide UNSET sentinel from ctx.params during option callbacks\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_progressbar_lands_on_final_position\" -B12 -A40 tests/test_termui.py; grep -n \"class ProgressBar\" -A230 src/click/_termui_impl.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01NrcQV8JAbBuKfQ3QygykWA","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01UL5dCppp81QeJnSfqpcVoK","tool":"Bash","input":{"command":"sed -n 273,400p src/click/_termui_impl.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01UL5dCppp81QeJnSfqpcVoK","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01NoeKnYTYC8rgHEQEB8t8KM","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/_termui_impl.py'\ns=open(p).read()\ns=s.replace(''' self.render_finish()\n\n def __iter__''',''' # Steps below ``update_min_steps`` are still pending; account for them\n # so the bar lands on its final position.\n if self._flush_pending_steps():\n self.render_progress()\n self.render_finish()\n\n def _flush_pending_steps(self) -> bool:\n if not self._completed_intervals:\n return False\n\n self.make_step(self._completed_intervals)\n self._completed_intervals = 0\n return True\n\n def __iter__''',1)\ns=s.replace(''' self.update(1)\n self.finish()''',''' self.update(1)\n self._flush_pending_steps()\n self.finish()''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q tests/test_termui.py 2>&1|tail -12"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01NoeKnYTYC8rgHEQEB8t8KM","text":""}]},{"role":"assistant","text":"第 9 个问题的测试已通过，提交后开始第 10 个：函数名后缀。","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01JnLzqy8CWinFFJAfcQBHJA","tool":"Bash","input":{"command":"git commit -qam \"Issue 9: progress bar lands on its final position\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_generate_name\" -B25 -A20 tests/test_command_decorators.py; grep -n \"def test_other_command_invoke_with_defaults\" -B5 -A20 tests/test_commands.py; grep -n \"_command\\|_group\\|_cmd\\|_grp\" src/click/decorators.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01JnLzqy8CWinFFJAfcQBHJA","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01WzTP9dDdhTqLHKPFa2RJ15","tool":"Bash","input":{"command":"grep -n \"replace(\\\"_\\\"\\|__name__\" src/click/decorators.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01WzTP9dDdhTqLHKPFa2RJ15","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01CGiHUTGNLbPzLtbaa48gNH","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/decorators.py'\ns=open(p).read()\ns=s.replace(''' name=name or f.__name__.lower().replace(\"_\", \"-\"),''',''' name=name or _generate_name(f.__name__),''')\ns=s.replace('''def command(''','''def _generate_name(func_name: str) -> str:\n \"\"\"Derive a command name from a function name, dropping a conventional\n ``_command``, ``_cmd``, ``_group`` or ``_grp`` suffix.\n \"\"\"\n name = func_name.lower()\n\n for suffix in (\"_command\", \"_cmd\", \"_group\", \"_grp\"):\n if name.endswith(suffix) and len(name) > len(suffix):\n name = name[: -len(suffix)]\n break\n\n return name.replace(\"_\", \"-\")\n\n\ndef command(''',1)\nopen(p,'w').write(s)\nE\ngrep -n \"^def _generate_name\" -B3 src/click/decorators.py | head; .venv/bin/python -m pytest -q 2>&1|tail -3"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01CGiHUTGNLbPzLtbaa48gNH","text":""}]},{"role":"assistant","text":"I inserted the helper into the middle of an overload block. Move it.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01HF4LME3cPX1VrBjWyCzjJv","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/decorators.py'\ns=open(p).read()\ni=s.index(\"def _generate_name\")\nj=s.index(\"def command(\",i)\nhelper=s[i:j]\ns=s[:i]+s[j:]\nk=s.index(\"# variant: no call, directly as decorator for a function.\")\ns=s[:k]+helper+s[k:]\nopen(p,'w').write(s)\nE\nsed -n 128,155p src/click/decorators.py; .venv/bin/python -m pytest -q 2>&1|tail -1"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01HF4LME3cPX1VrBjWyCzjJv","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01QthJamhQpghL8dQAt6PbMC","tool":"TaskUpdate","input":{"taskId":"8","status":"completed"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01QthJamhQpghL8dQAt6PbMC","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01FrtKkAAuWK6qvhhEh12EvV","tool":"TaskUpdate","input":{"taskId":"9","status":"completed"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01FrtKkAAuWK6qvhhEh12EvV","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_015riPjdgzaMHAtefd6j4g58","tool":"TaskUpdate","input":{"taskId":"10","status":"in_progress"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_015riPjdgzaMHAtefd6j4g58","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01C2Bj6B1FaUcYq9MWx5b1zi","tool":"Bash","input":{"command":".venv/bin/python -m pytest -q tests/test_command_decorators.py tests/test_commands.py 2>&1|grep -E \"generate_name|invoke_with_defaults|passed|failed\""}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01C2Bj6B1FaUcYq9MWx5b1zi","text":""}]},{"role":"assistant","text":"Issue 10's tests pass. Commit and move to issue 11.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01GshfNbcbtjg6mz362ubLgW","tool":"Bash","input":{"command":"git commit -qam \"Issue 10: drop conventional suffixes from generated command names\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_subcommand_metavar_marks_optional\" -B25 -A20 tests/test_commands.py; grep -n \"subcommand_metavar\" -B3 -A8 src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01GshfNbcbtjg6mz362ubLgW","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01VWUDRfXxji8zVrJA7iku39","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' if chain:\n subcommand_metavar = \"COMMAND1 [ARGS]... [COMMAND2 [ARGS]...]...\"\n else:\n subcommand_metavar = \"COMMAND [ARGS]...\"\n''',''' # The leading subcommand is bracketed when it can be omitted.\n first = \"COMMAND1\" if chain else \"COMMAND\"\n\n if invoke_without_command:\n first = f\"[{first}]\"\n\n if chain:\n subcommand_metavar = f\"{first} [ARGS]... [COMMAND2 [ARGS]...]...\"\n else:\n subcommand_metavar = f\"{first} [ARGS]...\"\n''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1|tail -1"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01VWUDRfXxji8zVrJA7iku39","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01XgiYfmHxjDrttPBT2h2HaZ","tool":"Bash","input":{"command":"git commit -qam \"Issue 11: mark the subcommand optional in usage when invoke_without_command is set\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"pipepager\\|tempfile_pager\\|less\" tests/test_termui.py | head -60; grep -n \"def _pipepager\\|def _tempfilepager\\|def pager\\|def _nullpager\" src/click/_termui_impl.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01XgiYfmHxjDrttPBT2h2HaZ","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01JyCMDMTZe95tLLWMiXzrmw","tool":"Bash","input":{"command":"sed -n 440,660p src/click/_termui_impl.py; sed -n 775,935p tests/test_termui.py; sed -n 1165,1205p tests/test_termui.py; sed -n 1240,1262p tests/test_termui.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01JyCMDMTZe95tLLWMiXzrmw","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_0173qnyg7G4Gvv7DV1ZSL4ro","tool":"Bash","input":{"command":"grep -rn \"_tempfilepager(\\|_pipepager(\" tests src | grep -v \"def \""}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_0173qnyg7G4Gvv7DV1ZSL4ro","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01QPNGukExUPGPubB4Rocw5j","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/_termui_impl.py'\ns=open(p).read()\ns=s.replace(\"return _tempfilepager(cmd_path, color)\",\"return _tempfilepager(cmd_path, cmd_params, color)\")\ns=s.replace('''def _tempfilepager(\n cmd_path: Path, color: bool | None = None\n)''','''def _tempfilepager(\n cmd_path: Path, cmd_params: list[str], color: bool | None = None\n)''')\ns=s.replace(''' platforms. The command is invoked with the temporary file as its only\n argument: any parameters the user set in ``PAGER`` are not passed on.\n''',''' platforms. The command is invoked with the parameters the user set in\n ``PAGER`` followed by the temporary file.\n''')\ns=s.replace(\"subprocess.call([str(cmd_path), f.name])\",\"subprocess.call([str(cmd_path), *cmd_params, f.name])\")\nold=s[s.index(\" # If we're piping to less and the user hasn't decided on colors, we enable\"):s.index(\" c = subprocess.Popen(\\n [str(cmd_path)] + cmd_params,\")]\nnew=''' # If we're piping to less and the user hasn't decided on colors, we enable\n # them by default, unless we find a raw control chars flag (-r, -R or\n # --raw-control-chars) in the LESS environment variable or the command line\n # arguments.\n if color is None and _is_less(cmd_path):\n less_tokens = [*_split_less_env(os.environ.get(\"LESS\", \"\")), *cmd_params]\n if not less_tokens:\n env[\"LESS\"] = \"-R\"\n color = True\n elif _requests_raw_mode(less_tokens):\n color = True\n\n'''\ns=s.replace(old,new)\ns=s.replace('''@contextlib.contextmanager\ndef _pipepager(''','''def _is_less(cmd_path: Path) -> bool:\n \"\"\"Whether the pager command is ``less``, matching the stem so that\n ``less.exe`` counts. Windows filesystems are case-insensitive, so the match\n casefolds there.\n \"\"\"\n stem = cmd_path.stem\n return (stem.casefold() if WIN else stem) == \"less\"\n\n\ndef _split_less_env(value: str) -> list[str]:\n try:\n return shlex.split(value)\n except ValueError:\n return value.split()\n\n\ndef _requests_raw_mode(tokens: list[str]) -> bool:\n \"\"\"Whether ``less`` option tokens ask for raw control characters. Only\n option tokens are inspected: filenames, values and everything after ``--``\n are ignored.\n \"\"\"\n for token in tokens:\n if token == \"--\":\n break\n\n if token.startswith(\"--\"):\n if token.lower() == \"--raw-control-chars\":\n return True\n elif token.startswith(\"-\") and (\"r\" in token or \"R\" in token):\n return True\n\n return False\n\n\n@contextlib.contextmanager\ndef _pipepager(''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1|tail -1; .venv/bin/python -m pytest -q tests/test_termui.py 2>&1|grep FAILED"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01QPNGukExUPGPubB4Rocw5j","text":""}]},{"role":"assistant","text":"第 12 个问题的 4 组测试都过了，提交后进入第 13 个（`type_cast_value` 不应看到 UNSET）。","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01YCTJtbUKau6U962b3fscoB","tool":"Bash","input":{"command":"git commit -qam \"Issue 12: forward PAGER params to tempfile pager and parse less option tokens\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"never_sees_unset\" -B30 -A40 tests/test_options.py | head -120; grep -n \"def type_cast_value\" -A50 src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01YCTJtbUKau6U962b3fscoB","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01SpAygvBbhJmejD2akuVZAp","tool":"TaskUpdate","input":{"taskId":"10","status":"completed"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01SpAygvBbhJmejD2akuVZAp","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_015jYvpm2uVvUV45f6fZNp1t","tool":"TaskUpdate","input":{"taskId":"11","status":"completed"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_015jYvpm2uVvUV45f6fZNp1t","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01UUs3xqhAVVjgL1NBRGr8J7","tool":"TaskUpdate","input":{"taskId":"12","status":"completed"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01UUs3xqhAVVjgL1NBRGr8J7","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01C6NQzRK7CzdTEkwPyQupFd","tool":"TaskUpdate","input":{"taskId":"13","status":"in_progress"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01C6NQzRK7CzdTEkwPyQupFd","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_015ZYqnFUepzfe6ye39L3rXt","tool":"Bash","input":{"command":"sed -n 2576,2600p src/click/core.py; grep -n \"def test_argument_custom_class_can_override\" -B18 -A20 tests/test_arguments.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_015ZYqnFUepzfe6ye39L3rXt","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01PwkzEeCpvgJtkLibuHSrDV","tool":"Bash","input":{"command":"grep -n \"type_cast_value\" src/click/*.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01PwkzEeCpvgJtkLibuHSrDV","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_014wsHmTQ15yDC1VDWuBxHrG","tool":"Bash","input":{"command":"sed -n 885,905p src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_014wsHmTQ15yDC1VDWuBxHrG","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Tkhf8HTGjeoA2KKEz5yXWF","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' value = self.type_cast_value(ctx, value)\n\n if self.required and self.value_is_missing(value):''',''' # User code (e.g. an overridden ``type_cast_value``) never sees the\n # internal ``UNSET`` sentinel: it is presented as ``None`` and restored\n # afterwards if the value is still unset, so it is reported as missing.\n was_unset = value is UNSET\n\n if was_unset:\n value = self._value_when_unset()\n\n value = self.type_cast_value(ctx, value)\n\n if was_unset and value is None:\n value = UNSET\n\n if self.required and self.value_is_missing(value):''',1)\ns=s.replace(''' def value_is_missing(self, value: t.Any) -> bool:\n \"\"\"A value is considered missing if:''',''' def _value_when_unset(self) -> t.Any:\n \"\"\"The value handed to :meth:`type_cast_value` when nothing was\n provided for this parameter.\n \"\"\"\n return None\n\n def value_is_missing(self, value: t.Any) -> bool:\n \"\"\"A value is considered missing if:''',1)\ns=s.replace(''' def type_cast_value(self, ctx: Context, value: t.Any) -> t.Any:\n if self.is_flag and not self.required:''',''' def _value_when_unset(self) -> t.Any:\n # A non-required boolean flag that is not set is ``False``.\n if self.is_flag and not self.required and self.is_bool_flag:\n return False\n\n return None\n\n def type_cast_value(self, ctx: Context, value: t.Any) -> t.Any:\n if self.is_flag and not self.required:''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1|tail -1; .venv/bin/python -m pytest -q 2>&1|grep FAILED|grep -i \"never\\|flag\""}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Tkhf8HTGjeoA2KKEz5yXWF","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01EykMF1nEDiQ37FHonLsCGs","tool":"Bash","input":{"command":"git commit -qam \"Issue 13: never pass UNSET to type_cast_value\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_echo_via_pager_streams_each_write\" -A45 tests/test_termui.py; grep -n \"def echo_via_pager\" -A60 src/click/termui.py | tail -45"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01EykMF1nEDiQ37FHonLsCGs","text":""}]},{"role":"assistant","text":"第 14 个问题：每次写入后都 flush。","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01BtKfyKD23ozHgyPZHwmKm8","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/termui.py'\ns=open(p).read()\ns=s.replace(''' pager.write(text)\n\n''',''' pager.write(text)\n # Flush each chunk so a slow generator streams to the pager as it\n # is produced instead of buffering until the end.\n pager.flush()\n\n''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1|tail -1; .venv/bin/python -m pytest -q 2>&1|grep FAILED|grep pager"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01BtKfyKD23ozHgyPZHwmKm8","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Ki6fCuJSogt9i3vUmQFL55","tool":"Bash","input":{"command":"git commit -qam \"Issue 14: flush each chunk when paging a generator\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_get_help_option_names\" -B30 -A15 tests/test_commands.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Ki6fCuJSogt9i3vUmQFL55","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_012pdwSQxJgU3C7p9Y8Y9djd","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' all_names = set(ctx.help_option_names)\n for param in self.params:\n all_names.difference_update(param.opts)\n all_names.difference_update(param.secondary_opts)\n return list(all_names)''',''' taken: set[str] = set()\n for param in self.params:\n taken.update(param.opts)\n taken.update(param.secondary_opts)\n # ``dict.fromkeys`` deduplicates while keeping the declared order.\n return [n for n in dict.fromkeys(ctx.help_option_names) if n not in taken]''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1|tail -1"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_012pdwSQxJgU3C7p9Y8Y9djd","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01NZhGwAPkdjWuEHhYpK22Fc","tool":"Bash","input":{"command":"git commit -qam \"Issue 15: keep declaration order in get_help_option_names\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_isolated_filesystem_deprecated\" -B5 -A25 tests/test_deprecations.py; grep -n \"def isolated_filesystem\" -B3 -A40 src/click/testing.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01NZhGwAPkdjWuEHhYpK22Fc","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01PaMwrXKh5tGKsKQbbGnK7c","tool":"TaskUpdate","input":{"taskId":"13","status":"completed"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01PaMwrXKh5tGKsKQbbGnK7c","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01AJNTvUUR4TLhzdfPNBubzD","tool":"TaskUpdate","input":{"taskId":"14","status":"completed"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01AJNTvUUR4TLhzdfPNBubzD","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_017RBzy7zjUNr47EnAXsrtSf","tool":"TaskUpdate","input":{"taskId":"15","status":"completed"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_017RBzy7zjUNr47EnAXsrtSf","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01GkF3CnzuXYC8Dqjkxk4qhU","tool":"TaskUpdate","input":{"taskId":"16","status":"in_progress"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01GkF3CnzuXYC8Dqjkxk4qhU","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01X2RnWmmuFSndkmZr4nHq8V","tool":"Bash","input":{"command":"grep -rn \"isolated_filesystem\" src tests --include=*.py -l; grep -n \"filterwarnings\" -A6 pyproject.toml; grep -n \"^import\\|^from\" src/click/testing.py | head -20"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01X2RnWmmuFSndkmZr4nHq8V","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01JQgPWvTsdtGy7Y9qQamv9J","tool":"Bash","input":{"command":"grep -rln \"isolated_filesystem\" src tests docs 2>/dev/null; python3 - <<'E'\np='src/click/testing.py'\ns=open(p).read()\ns=s.replace(''' .. versionchanged:: 8.0\n Added the ``temp_dir`` parameter.\n \"\"\"\n cwd = os.getcwd()''',''' .. deprecated:: 8.5\n Use :func:`pytest.tmp_path` with ``monkeypatch.chdir`` or\n :class:`tempfile.TemporaryDirectory` instead. This predates\n Python 3 and pytest being in common use and would not be added\n today.\n\n Limits: it only changes the process-wide working directory, so it\n is not thread-safe, and it does not isolate anything else.\n\n .. versionchanged:: 8.0\n Added the ``temp_dir`` parameter.\n \"\"\"\n import warnings\n\n warnings.warn(\n \"'isolated_filesystem' is deprecated and will be removed in Click\"\n \" 9.0. Use pytest's 'tmp_path' fixture or\"\n \" 'tempfile.TemporaryDirectory' instead.\",\n DeprecationWarning,\n stacklevel=3,\n )\n cwd = os.getcwd()''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1|tail -8"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01JQgPWvTsdtGy7Y9qQamv9J","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01XZ31vGJyPqxrkxm7mnnkxk","tool":"Bash","input":{"command":"grep -n \"isolated_filesystem\" -B3 tests/test_testing.py | head -30; .venv/bin/python -m pytest -q tests/test_testing.py 2>&1|tail -3"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01XZ31vGJyPqxrkxm7mnnkxk","text":""}]},{"role":"assistant","text":"Good. Commit and start issue 17 (before I do 17, note the docs mention it too; I'll add a changelog line if a CHANGES file exists).","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Fjny7Zp7wZG6sUoQ8t4Mmb","tool":"Bash","input":{"command":"git commit -qam \"Issue 16: deprecate CliRunner.isolated_filesystem\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_progressbar_item_show_func\" -B3 -A40 tests/test_termui.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Fjny7Zp7wZG6sUoQ8t4Mmb","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01VQrAfQBX8rHg2WE6PHt6b9","tool":"Bash","input":{"command":"cat > /tmp/x.py <<'E'\nimport click, click._termui_impl as m\nm.isatty=lambda _:True\nfrom click.testing import CliRunner\n@click.command()\ndef cli():\n with click.progressbar(range(3), item_show_func=lambda x: str(x)) as progress:\n for item in progress:\n click.echo(f\" item {item}\")\nprint(repr(CliRunner().invoke(cli).output))\nE\n.venv/bin/python /tmp/x.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01VQrAfQBX8rHg2WE6PHt6b9","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01CAmkf8C9WeiCiMteJqQ8CH","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/_termui_impl.py'\ns=open(p).read()\ns=s.replace(''' self.current_item = rv\n yield rv''',''' self.current_item = rv\n # Render so the bar shows the item being processed.\n self.render_progress()\n yield rv''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python /tmp/x.py; .venv/bin/python -m pytest -q 2>&1|tail -1; .venv/bin/python -m pytest -q tests/test_termui.py 2>&1|grep FAILED"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01CAmkf8C9WeiCiMteJqQ8CH","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01WJMUyWmWRBsD9y796Q6xcQ","tool":"Bash","input":{"command":"git commit -qam \"Issue 17: show the item being processed via item_show_func\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_deprecated_empty_help_no_leading_space\" -B25 -A25 tests/test_commands.py; grep -n \"def test_deprecated_empty_help_no_leading_space\" -B22 -A25 tests/test_options.py; grep -n \"_format_deprecated_label\" -B3 -A25 src/click/core.py | head -120"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01WJMUyWmWRBsD9y796Q6xcQ","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01SwzE8hQKaKqH6esSpnFJbg","tool":"Bash","input":{"command":"sed -n 1224,1237p src/click/core.py; sed -n 1258,1268p src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01SwzE8hQKaKqH6esSpnFJbg","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_0163vPze6Uj8hvFJKNQRtTEP","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' text = f\"{_(text)} {_format_deprecated_label(self.deprecated)}\"''',''' label = _format_deprecated_label(self.deprecated)\n text = f\"{_(text)} {label}\" if text else label''')\ns=s.replace(''' help = f\"{help} {label}\" if help is not None else label''',''' help = f\"{help} {label}\" if help else label''')\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1|tail -1; .venv/bin/python -m pytest -q 2>&1|grep FAILED|grep deprec"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_0163vPze6Uj8hvFJKNQRtTEP","text":""}]},{"role":"assistant","text":"第 18 个问题已通过。更新任务列表，提交，然后做第 19 个（typing_extensions）。","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01DQRAyqCaxhbBxcV59EiA1f","tool":"TaskUpdate","input":{"taskId":"16","status":"completed"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01DQRAyqCaxhbBxcV59EiA1f","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_012jWCzMwk5R29Ytsv8wneFR","tool":"TaskUpdate","input":{"taskId":"17","status":"completed"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_012jWCzMwk5R29Ytsv8wneFR","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Lc6PNmnKANxypU2RyMd2e4","tool":"TaskUpdate","input":{"taskId":"18","status":"completed"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Lc6PNmnKANxypU2RyMd2e4","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01FqaeYMwoEyN6EwtSKamHEu","tool":"TaskUpdate","input":{"taskId":"19","status":"in_progress"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01FqaeYMwoEyN6EwtSKamHEu","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Fs9YoQLERvQP7QatoqUvJr","tool":"Bash","input":{"command":"git commit -qam \"Issue 18: no leading space before deprecation label when help is empty\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -rn \"typing_extensions\" src/click/*.py; grep -n \"def test_light_imports\" -B5 -A40 tests/test_imports.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Fs9YoQLERvQP7QatoqUvJr","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01KKLd3hcZ7HNaawKk1vQYpm","tool":"Bash","input":{"command":"sed -n 1,66p tests/test_imports.py; .venv/bin/python -m pytest -q tests/test_imports.py 2>&1 | grep -B5 Error | head -30; python3 - <<'E'\nE\n.venv/bin/python -c \"\nimport sys,click\nprint(sorted(m for m in sys.modules if not m.startswith('click')))\" | tr ',' '\\n' | grep -n \"builtins\\|typing\" "}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01KKLd3hcZ7HNaawKk1vQYpm","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01PKHYvAYM4LobMAWJFeb9og","tool":"Bash","input":{"command":"grep -n \"builtins\" src/click/*.py; python3 - <<'E'\nE\n.venv/bin/python - <<'E'\nimport subprocess,sys,json\nsys.path.insert(0,'tests')\nimport test_imports as t\nrv=subprocess.run([sys.executable,'-'],input=t.IMPORT_TEST,capture_output=True).stdout\nprint([m for m in json.loads(rv) if m not in t.ALLOWED_IMPORTS])\nE"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01PKHYvAYM4LobMAWJFeb9og","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_013fvtweAqs3EDqugupciaCs","tool":"Bash","input":{"command":"sed -n 25,45p src/click/termui.py; sed -n 135,150p src/click/termui.py; sed -n 20,32p src/click/types.py; sed -n 14,20p src/click/decorators.py; sed -n 20,28p src/click/utils.py; git log --oneline -3 -- tests/test_imports.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_013fvtweAqs3EDqugupciaCs","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01L2TfU6xVSgyW48UKPHDX2B","tool":"Bash","input":{"command":"grep -n \"TypeVar\" src/click/types.py src/click/shell_completion.py; sed -n 56,66p src/click/shell_completion.py; grep -n \"requires-python\" pyproject.toml; grep -n \"typing.extensions\\|typing_extensions\" pyproject.toml"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01L2TfU6xVSgyW48UKPHDX2B","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01RccX13YNqpjLRGRZPfaxw3","tool":"Bash","input":{"command":"sed -n 62,80p src/click/_winconsole.py; python3 - <<'E'\np='src/click/types.py'\ns=open(p).read()\nold='''# TypeVar(default=...) support.\nif sys.version_info >= (3, 13):\n from typing import TypeVar\nelse:\n from typing_extensions import TypeVar\n\n'''\nassert old in s\ns=s.replace(old,'')\ns=s.replace('_InputT_contra = TypeVar(\"_InputT_contra\", contravariant=True, default=t.Any)','''if t.TYPE_CHECKING:\n # ``TypeVar(default=...)`` needs ``typing_extensions`` before Python 3.13.\n # It is only used by type checkers, never imported at runtime.\n if sys.version_info >= (3, 13):\n from typing import TypeVar\n else:\n from typing_extensions import TypeVar\n\n _InputT_contra = TypeVar(\"_InputT_contra\", contravariant=True, default=t.Any)\nelse:\n _InputT_contra = t.TypeVar(\"_InputT_contra\", contravariant=True)''')\nopen(p,'w').write(s)\np='src/click/termui.py'\ns=open(p).read()\ns=s.replace(\"import builtins\\n\",\"\",1)\ns=s.replace(\"return builtins.type(default) is builtins.type(type)\",\"return _builtin_type(default) is _builtin_type(type)\")\ns=s.replace('V = t.TypeVar(\"V\")','# ``type`` is shadowed by parameters below.\\n_builtin_type = type\\n\\nV = t.TypeVar(\"V\")',1)\nopen(p,'w').write(s)\nE\nsed -n 18,45p src/click/types.py; .venv/bin/python -m pytest -q 2>&1|tail -1"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01RccX13YNqpjLRGRZPfaxw3","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01XZxyq5doTi3CCJzXbnkmnv","tool":"Bash","input":{"command":".venv/bin/python -m pytest -q -x 2>&1 | grep -B15 \"TypeError: Too few\" | head -40"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01XZxyq5doTi3CCJzXbnkmnv","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_014XQ5aqKymbVXKbDDjMHzwt","tool":"Bash","input":{"command":"grep -n \"ParamType\\[\" src/click/*.py | grep -v \"^\\S*:\\s*#\" | grep \"class \\|isinstance\\|=\" | head -30; grep -n \"class ParamType\" -A3 src/click/types.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_014XQ5aqKymbVXKbDDjMHzwt","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01ADMTCRezoW47t1eusEReKz","tool":"Bash","input":{"command":"sed -n 53,75p src/click/types.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01ADMTCRezoW47t1eusEReKz","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_015EDX7T2qr8Yot4Dz9rdpmV","tool":"Bash","input":{"command":"sed -n 76,100p src/click/types.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_015EDX7T2qr8Yot4Dz9rdpmV","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Ayn5mwF8HHdPW4T8sqnMX8","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/types.py'\ns=open(p).read()\ns=s.replace(''' is_composite: t.ClassVar[bool] = False\n arity: int = 1 # read-only\n''',''' if not t.TYPE_CHECKING:\n\n def __class_getitem__(cls, params: t.Any) -> t.Any:\n # Without ``typing_extensions.TypeVar`` the input type parameter has\n # no default at runtime, so pad it with ``Any`` to allow\n # ``ParamType[int]``.\n if cls is ParamType and not isinstance(params, tuple):\n params = (params, t.Any)\n\n return super().__class_getitem__(params)\n\n is_composite: t.ClassVar[bool] = False\n arity: int = 1 # read-only\n''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1|tail -3"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Ayn5mwF8HHdPW4T8sqnMX8","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01AQUAhETPVPSgFpG9Rfk4uz","tool":"Bash","input":{"command":".venv/bin/python -c \"\nimport sys,click\nprint('typing_extensions' in sys.modules)\nclass A(click.ParamType[int]): name='a'\nclass B(click.ParamType[int,str]): name='b'\nprint(A.__orig_bases__)\"; .venv/bin/python -m pytest -q tests/test_imports.py 2>&1|tail -1\ngit commit -qam \"Issue 19: avoid importing typing_extensions and builtins at runtime\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok\ngrep -n \"def write_usage\" -A50 src/click/formatting.py; grep -n \"no_args\\|without_args\" -B12 -A30 tests/test_formatting.py | head -200"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01AQUAhETPVPSgFpG9Rfk4uz","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01JT1NEvrffnaCXUUACcQxAX","tool":"Bash","input":{"command":"sed -n 545,582p tests/test_formatting.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01JT1NEvrffnaCXUUACcQxAX","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_011onoJsbHtFy5PZPkfBJRAZ","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/formatting.py'\ns=open(p).read()\ns=s.replace(''' usage_prefix = f\"{prefix:>{self.current_indent}}{prog} \"\n text_width''',''' if not args:\n # Nothing to wrap: no trailing separator and no empty argument line.\n self.write(f\"{prefix:>{self.current_indent}}{prog}\\\\n\")\n return\n\n usage_prefix = f\"{prefix:>{self.current_indent}}{prog} \"\n text_width''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1|tail -3"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_011onoJsbHtFy5PZPkfBJRAZ","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01JRFETq1nUc2SHhrSz4NWfV","tool":"Bash","input":{"command":"git commit -qam \"Issue 20: no spurious characters in write_usage without args\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; git status --short; git log --oneline | head -22; .venv/bin/python -m pytest -q 2>&1|tail -1"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01WLK7ac2M76wo7X8cBP8Gzi","tool":"TaskUpdate","input":{"taskId":"19","status":"completed"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01RGgkuJo23qWwvdAAfAvywz","tool":"TaskUpdate","input":{"taskId":"20","status":"completed"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01JRFETq1nUc2SHhrSz4NWfV","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01RGgkuJo23qWwvdAAfAvywz","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01WLK7ac2M76wo7X8cBP8Gzi","text":""}]},{"role":"assistant","text":"20 个问题都做完了，每个单独一次提交，提交信息写明\"Issue N\"。最后整个测试集是 2058 通过、25 跳过、1 xfail，没有失败，也没有改动、跳过或删除任何测试。\n\n各问题的改法：\n\n1. `echo` 不再把空 bytes 换成空字符串（`utils.py`）。\n2. `Command.main` 里，Ctrl-C 在报告 abort、报错或退出期间到来时，仍保留原来的退出码，消息尽力输出。非 standalone 模式下中断照常抛给调用方（`core.py`）。\n3. 可选的 `Choice` 或 `DateTime` 参数，其 metavar 已带方括号时不再重复包一层。\n4. `click.edit` 的 `filename` 接受 `os.PathLike`，运行时用 `os.fspath` 转换。\n5. 自动 help 选项内部改存为保留名 `_click_default_help`。参数与其他参数重名，或占用了这个保留名时会发出警告。\n6. 补全脚本以字节写出，保证只用 LF 换行。\n7. 新增 `click.custom_version_option`。\n8. 选项回调执行期间，`ctx.params` 里的 UNSET 显示为 `None`，回调结束后没被改动的再还原。\n9. 进度条结束时把不足 `update_min_steps` 的剩余步数补上，停在最终位置。\n10. 生成命令名时去掉 `_command`、`_cmd`、`_group`、`_grp` 后缀。\n11. `invoke_without_command` 时，用法行里的子命令标成 `[COMMAND]`。\n12. PAGER 的参数会传给临时文件 pager。判断 `less` 时改用命令的 stem，Windows 上不区分大小写，并解析选项 token 找 `-r`、`-R`、`--raw-control-chars`。\n13. 传给 `type_cast_value` 的 UNSET 先换成 `None`，处理完若仍为 `None` 再还原成 UNSET。\n14. `echo_via_pager` 每写一块就 flush。\n15. `get_help_option_names` 去重并保持声明顺序。\n16. `CliRunner.isolated_filesystem` 发出 `DeprecationWarning`，文档里补了替代做法和局限。\n17. 进度条在处理每个 item 时先渲染，`item_show_func` 显示的就是当前 item。\n18. 帮助文本为空时，弃用标签前不再多出空格。\n19. `types.py` 的 `TypeVar(default=...)` 只留给类型检查。运行时给 `ParamType` 加了 `__class_getitem__`，让 `ParamType[int]` 仍可用。另外去掉了 `termui.py` 里运行时的 `import builtins`，这才是 `test_light_imports` 实际失败的原因。\n20. `write_usage` 在没有参数时不再输出多余的空格或空行。\n\n第 2 个问题的三个测试在没改代码时时好时坏，改完后我单独连跑了 3 次全过。第 17 个问题里，`update()` 之后进度条会先用旧 item 多渲染一次，这是我接受的小瑕疵。\n\nALL ISSUES DONE","toolUses":[]}]],"steps":[{"n":0,"segment":0,"pos":1,"turn":0,"index":0,"stop_reason":"tool_use","context":36910,"step":{"text":"","calls":[{"name":"Read","input":{"file_path":"~/.cache/taskcut-eval/workspaces/click-zh--off--sonnet/ISSUES.md"}},{"name":"ToolSearch","input":{"query":"select:TaskCreate,TaskUpdate","max_results":5}}]}},{"n":1,"segment":0,"pos":5,"turn":0,"index":1,"stop_reason":"tool_use","context":42772,"step":{"text":"","calls":[{"name":"TaskCreate","input":{"subject":"Issue 1: echo empty bytes with custom file","description":"tests/test_utils/test_echo.py::test_echo_custom_file"}},{"name":"TaskCreate","input":{"subject":"Issue 2: KeyboardInterrupt race in prompt","description":"tests/test_abort_interrupt.py (3 tests)"}},{"name":"TaskCreate","input":{"subject":"Issue 3: doubled brackets optional Choice/DateTime argument","description":"test_basic.py metavar tests"}},{"name":"TaskCreate","input":{"subject":"Issue 4: pathlib.Path in click.edit","description":"test_termui.py::test_edit_pathlib"}},{"name":"TaskCreate","input":{"subject":"Issue 5: help param name conflict resolution","description":"5 tests in test_basic/test_info_dict/test_options"}},{"name":"TaskCreate","input":{"subject":"Issue 6: LF line endings in completion scripts","description":"test_shell_completion.py::test_source_uses_lf_line_endings"}},{"name":"TaskCreate","input":{"subject":"Issue 7: custom_version_option decorator","description":"test_basic.py custom_version_option tests"}},{"name":"TaskCreate","input":{"subject":"Issue 8: hide UNSET sentinel in callbacks","description":"test_context.py::test_hiding_of_unset_sentinel_in_callbacks"}},{"name":"TaskCreate","input":{"subject":"Issue 9: progressbar final position","description":"test_progressbar_lands_on_final_position"}},{"name":"TaskCreate","input":{"subject":"Issue 10: strip _command/_group suffix from generated names","description":"test_generate_name, test_other_command_invoke_with_defaults"}},{"name":"TaskCreate","input":{"subject":"Issue 11: optional subcommand metavar","description":"test_subcommand_metavar_marks_optional"}},{"name":"TaskCreate","input":{"subject":"Issue 12: PAGER args and less detection","description":"4 pager tests in test_termui.py"}},{"name":"TaskCreate","input":{"subject":"Issue 13: type_cast_value never sees UNSET","description":"test_arguments/test_options custom class tests"}},{"name":"TaskCreate","input":{"subject":"Issue 14: echo_via_pager streams generator","description":"test_echo_via_pager_streams_each_write"}},{"name":"TaskCreate","input":{"subject":"Issue 15: get_help_option_names order","description":"test_get_help_option_names"}},{"name":"TaskCreate","input":{"subject":"Issue 16: deprecate isolated_filesystem","description":"test_isolated_filesystem_deprecated"}},{"name":"TaskCreate","input":{"subject":"Issue 17: progressbar item_show_func","description":"test_progressbar_item_show_func"}},{"name":"TaskCreate","input":{"subject":"Issue 18: deprecated empty help leading space","description":"two tests in test_commands/test_options"}},{"name":"TaskCreate","input":{"subject":"Issue 19: no runtime typing_extensions import","description":"test_imports.py::test_light_imports"}},{"name":"TaskCreate","input":{"subject":"Issue 20: write_usage without args","description":"3 tests in test_formatting.py"}}]}},{"n":2,"segment":0,"pos":45,"turn":0,"index":2,"stop_reason":"tool_use","context":45923,"step":{"text":"Start with issue 1.","calls":[{"name":"TaskUpdate","input":{"taskId":"1","status":"in_progress"}},{"name":"Bash","input":{"command":".venv/bin/python -m pytest -q 2>&1 | tail -60; grep -n \"test_echo_custom_file\" -B3 -A25 tests/test_utils/test_echo.py"}}]}},{"n":3,"segment":0,"pos":50,"turn":0,"index":3,"stop_reason":"tool_use","context":49697,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -n \"^def echo\" -A85 src/click/utils.py | sed -n 40,100p"}}]}},{"n":4,"segment":0,"pos":52,"turn":0,"index":4,"stop_reason":"tool_use","context":50381,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/utils.py'\ns=open(p).read()\ns=s.replace(' out = out or \"\"\\n if isinstance(out, str):',' if out is None:\\n out = \"\"\\n if isinstance(out, str):')\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -1; .venv/bin/python -m pytest -q tests/test_utils/test_echo.py 2>&1|tail -1"}}]}},{"n":5,"segment":0,"pos":54,"turn":0,"index":5,"stop_reason":"tool_use","context":50717,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest -q 2>&1 | grep FAILED | grep -v -E \"test_commands|test_formatting|test_info_dict|test_termui|test_options|test_context|test_deprec|test_imports|shell_completion\""}}]}},{"n":6,"segment":0,"pos":56,"turn":0,"index":6,"stop_reason":"tool_use","context":52014,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"for i in 1 2 3; do .venv/bin/python -m pytest -q 2>&1 | tail -1; done; git stash -q; for i in 1 2 3; do .venv/bin/python -m pytest -q 2>&1 | tail -1; done; git stash pop -q"}}]}},{"n":7,"segment":0,"pos":58,"turn":0,"index":7,"stop_reason":"tool_use","context":52503,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"git commit -qam \"Issue 1: fix echo with empty bytes and custom file\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; cat tests/test_abort_interrupt.py; grep -n \"KeyboardInterrupt\\|Abort\" src/click/core.py"}}]}},{"n":8,"segment":0,"pos":60,"turn":0,"index":8,"stop_reason":"tool_use","context":55027,"step":{"text":"我正在做第 2 个问题，也就是 Ctrl-C 竞态。第 1 个问题已经提交。接下来读 `Command.main` 的相关代码。","calls":[{"name":"Bash","input":{"command":"sed -n 1470,1600p src/click/core.py"}}]}},{"n":9,"segment":0,"pos":63,"turn":0,"index":9,"stop_reason":"tool_use","context":56983,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' except (EOFError, KeyboardInterrupt) as e:\n echo(file=sys.stderr)\n raise Abort() from e\n except ClickException as e:\n if not standalone_mode:\n raise\n e.show()\n sys.exit(e.exit_code)''',''' except (EOFError, KeyboardInterrupt) as e:\n try:\n echo(file=sys.stderr)\n except KeyboardInterrupt:\n # A late interrupt must not replace the abort.\n if not standalone_mode:\n raise\n raise Abort() from e\n except ClickException as e:\n if not standalone_mode:\n raise\n try:\n e.show()\n except KeyboardInterrupt:\n pass\n _exit_ignoring_interrupt(e.exit_code)''')\ns=s.replace(''' sys.stderr = t.cast(t.TextIO, _PacifyFlushWrapper(sys.stderr))\n sys.exit(1)\n else:\n raise\n except Exit as e:\n if standalone_mode:\n sys.exit(e.exit_code)''',''' sys.stderr = t.cast(t.TextIO, _PacifyFlushWrapper(sys.stderr))\n _exit_ignoring_interrupt(1)\n else:\n raise\n except Exit as e:\n if standalone_mode:\n _exit_ignoring_interrupt(e.exit_code)''')\ns=s.replace(''' echo(_(\"Aborted!\"), file=sys.stderr)\n sys.exit(1)\n''',''' try:\n echo(_(\"Aborted!\"), file=sys.stderr)\n except KeyboardInterrupt:\n pass\n _exit_ignoring_interrupt(1)\n''')\ns=s.replace('''class _FakeSubclassCheck(type):''','''def _exit_ignoring_interrupt(code: int) -> t.NoReturn:\n \"\"\"Exit with ``code``, even if a late Ctrl-C arrives while exiting.\"\"\"\n try:\n sys.exit(code)\n except KeyboardInterrupt:\n sys.exit(code)\n\n\nclass _FakeSubclassCheck(type):''',1)\nopen(p,'w').write(s)\nE\nfor i in 1 2 3; do .venv/bin/python -m pytest -q tests/test_abort_interrupt.py 2>&1|tail -3; done"}}]}},{"n":10,"segment":0,"pos":65,"turn":0,"index":10,"stop_reason":"tool_use","context":58742,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest -q 2>&1 | grep -c \"abort_interrupt\"; git commit -qam \"Issue 2: keep exit code when Ctrl-C arrives while reporting abort/error/exit\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"optional_metavar\" -A22 tests/test_basic.py | head -70; grep -n \"def make_metavar\" -B3 -A25 src/click/core.py | grep -n \"\" | sed -n 1,200p | grep -A40 \"Argument\\|nargs\""}}]}},{"n":11,"segment":0,"pos":67,"turn":0,"index":11,"stop_reason":"tool_use","context":61299,"step":{"text":"","calls":[{"name":"TaskUpdate","input":{"taskId":"1","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"2","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"3","status":"in_progress"}},{"name":"Bash","input":{"command":"sed -n 673,677p tests/test_basic.py; grep -n \"def get_metavar\" -A22 src/click/types.py | grep -n \"\\[\" "}}]}},{"n":12,"segment":0,"pos":75,"turn":0,"index":12,"stop_reason":"tool_use","context":62048,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' if not self.required:\n var = f\"[{var}]\"\n if self.nargs != 1:\n var += \"...\"\n return var\n\n def _parse_decls(\n self, decls: cabc.Sequence[str], expose_value: bool\n ) -> tuple[str, list[str], list[str]]:\n if not decls:\n if not expose_value:\n return \"\", [], []\n raise TypeError(\"Argument''',''' # Types such as Choice already wrap their metavar in brackets.\n if not self.required and not (var.startswith(\"[\") and var.endswith(\"]\")):\n var = f\"[{var}]\"\n if self.nargs != 1:\n var += \"...\"\n return var\n\n def _parse_decls(\n self, decls: cabc.Sequence[str], expose_value: bool\n ) -> tuple[str, list[str], list[str]]:\n if not decls:\n if not expose_value:\n return \"\", [], []\n raise TypeError(\"Argument''',1)\nopen(p,'w').write(s)\nE\ngit diff --stat; .venv/bin/python -m pytest -q 2>&1 | tail -1\n.venv/bin/python -m pytest -q tests/test_basic.py -k optional_metavar 2>&1 | tail -1"}}]}},{"n":13,"segment":0,"pos":77,"turn":0,"index":13,"stop_reason":"tool_use","context":62815,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"git commit -qam \"Issue 3: avoid doubled brackets for optional Choice/DateTime arguments\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"test_edit_pathlib\" -B5 -A25 tests/test_termui.py; grep -n \"filename\" src/click/_termui_impl.py src/click/termui.py"}}]}},{"n":14,"segment":0,"pos":79,"turn":0,"index":14,"stop_reason":"tool_use","context":64057,"step":{"text":"正在做第 4 个问题：让 `click.edit` 接受 `pathlib.Path`。","calls":[{"name":"Bash","input":{"command":"sed -n 820,840p src/click/termui.py; sed -n 655,680p src/click/_termui_impl.py"}}]}},{"n":15,"segment":0,"pos":82,"turn":0,"index":15,"stop_reason":"tool_use","context":64767,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\nimport re\np='src/click/termui.py'\ns=open(p).read()\ns=s.replace(\"filename: str | cabc.Iterable[str] | None = None,\",\"filename: str | os.PathLike[str] | cabc.Iterable[str | os.PathLike[str]] | None = None,\")\ns=s.replace(''' if isinstance(filename, str):\n filename = (filename,)\n\n ed.edit_files(filenames=filename)''',''' if isinstance(filename, (str, os.PathLike)):\n filename = (filename,)\n\n ed.edit_files(filenames=[os.fspath(f) for f in filename])''')\nopen(p,'w').write(s)\nE\ngrep -n \"^import os\\|^import\" src/click/termui.py | head; sed -n 876,884p src/click/termui.py"}}]}},{"n":16,"segment":0,"pos":84,"turn":0,"index":16,"stop_reason":"tool_use","context":65307,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/termui.py'\ns=open(p).read()\ns=s.replace(\"import itertools\\nimport re\",\"import itertools\\nimport os\\nimport re\",1)\nlong=\" filename: str | os.PathLike[str] | cabc.Iterable[str | os.PathLike[str]] | None = None,\"\nnew=\" filename: str\\n | os.PathLike[str]\\n | cabc.Iterable[str | os.PathLike[str]]\\n | None = None,\"\ns=s.replace(long,new)\ns=s.replace(''' if the ``editor`` supports editing multiple files at once.\n\n \"\"\"''',''' if the ``editor`` supports editing multiple files at once.\n\n .. versionchanged:: 8.4\n ``filename`` also accepts :class:`os.PathLike` values.\n \"\"\"''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -1; .venv/bin/python -m pytest -q tests/test_termui.py -k edit 2>&1|tail -1"}}]}},{"n":17,"segment":0,"pos":86,"turn":0,"index":17,"stop_reason":"tool_use","context":65874,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"git commit -qam \"Issue 4: accept pathlib.Path in click.edit filename\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_param_named_help\" -B30 -A50 tests/test_basic.py"}}]}},{"n":18,"segment":0,"pos":88,"turn":0,"index":18,"stop_reason":"tool_use","context":67206,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -n \"def test_argument_sharing_param_name_warning\" -B3 -A30 tests/test_options.py; git diff HEAD~5 --stat | tail -1; grep -n \"help_option\\|\\\"help\\\"\\|'help'\" src/click/core.py; grep -n \"_click_default_help\\|\\\"help\\\"\" -B3 -A3 tests/test_info_dict.py"}}]}},{"n":19,"segment":0,"pos":90,"turn":0,"index":19,"stop_reason":"tool_use","context":69622,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -n \"def help_option\" -A45 src/click/decorators.py; grep -n \"used by an argument\\|is used by\\|warnings.warn\" src/click/core.py; sed -n 1135,1150p src/click/core.py"}}]}},{"n":20,"segment":0,"pos":92,"turn":0,"index":20,"stop_reason":"tool_use","context":71229,"step":{"text":"","calls":[{"name":"TaskUpdate","input":{"taskId":"3","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"4","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"5","status":"in_progress"}},{"name":"Bash","input":{"command":"sed -n 1095,1125p src/click/core.py; sed -n 500,530p src/click/core.py; sed -n 3695,3725p src/click/core.py"}}]}},{"n":21,"segment":0,"pos":100,"turn":0,"index":21,"stop_reason":"tool_use","context":72743,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' help_option(*help_option_names)(self)''',''' # Store the value under a reserved name so that a user parameter\n # named ``help`` cannot clash with it.\n help_option(_HELP_OPTION_NAME, *help_option_names)(self)''')\ns=s.replace(''' stacklevel=3,\n )\n\n return params\n''',''' stacklevel=3,\n )\n\n names = Counter(\n param.name\n for param in params\n if param.name is not None and param is not help_option\n )\n\n for param in params:\n if param is help_option or param.name is None:\n continue\n\n if param.name == _HELP_OPTION_NAME:\n warnings.warn(\n f\"The parameter name {param.name!r} is reserved for the\"\n \" automatic help option. Rename the parameter.\",\n stacklevel=3,\n )\n elif isinstance(param, Argument) and names[param.name] > 1:\n warnings.warn(\n f\"The parameter name {param.name!r} is used by an argument\"\n \" and another parameter. They overwrite each other's\"\n \" value. Rename one of them.\",\n stacklevel=3,\n )\n\n return params\n''',1)\ns=s.replace('''class Context:''','''_HELP_OPTION_NAME = \"_click_default_help\"\n\n\nclass Context:''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -30"}}]}},{"n":22,"segment":0,"pos":102,"turn":0,"index":22,"stop_reason":"tool_use","context":75473,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest -q tests/test_basic.py tests/test_info_dict.py tests/test_options.py tests/test_arguments.py tests/test_commands.py 2>&1 | grep -E \"FAILED\" | grep -i \"help\\|info_dict\\|sharing\""}}]}},{"n":23,"segment":0,"pos":104,"turn":0,"index":23,"stop_reason":"tool_use","context":76219,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"git commit -qam \"Issue 5: store help option under reserved name and warn on parameter name collisions\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_source_uses_lf\" -B3 -A20 tests/test_shell_completion.py; grep -n \"def shell_complete\\|def source\\|replace\\|class .*Complete\" src/click/shell_completion.py"}}]}},{"n":24,"segment":0,"pos":106,"turn":0,"index":24,"stop_reason":"tool_use","context":77181,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 19,60p src/click/shell_completion.py"}}]}},{"n":25,"segment":0,"pos":108,"turn":0,"index":25,"stop_reason":"tool_use","context":77795,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/shell_completion.py'\ns=open(p).read()\ns=s.replace(''' echo(comp.source())\n''',''' # Write bytes so the platform's newline translation can't turn the\n # script's line endings into CRLF, which shells reject.\n echo(comp.source().encode())\n''')\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q tests/test_shell_completion.py 2>&1|tail -3"}}]}},{"n":26,"segment":0,"pos":110,"turn":0,"index":26,"stop_reason":"tool_use","context":78230,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"git commit -qam \"Issue 6: emit completion source scripts with LF line endings\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_custom_version_option\" -B3 -A45 tests/test_basic.py; grep -n \"def version_option\" -A110 src/click/decorators.py"}}]}},{"n":27,"segment":0,"pos":112,"turn":0,"index":27,"stop_reason":"tool_use","context":80921,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 523,545p src/click/decorators.py; grep -n \"version_option\" src/click/__init__.py"}}]}},{"n":28,"segment":0,"pos":114,"turn":0,"index":28,"stop_reason":"tool_use","context":81352,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/decorators.py'\ns=open(p).read()\ns=s.replace('''def help_option(*param_decls''','''def custom_version_option(\n version_func: t.Callable[[Context], str],\n *param_decls: str,\n **kwargs: t.Any,\n) -> t.Callable[[FC], FC]:\n \"\"\"Add a ``--version`` option which prints the string returned by\n ``version_func`` and exits the program.\n\n :param version_func: Called with the current :class:`Context`. Returns\n the text to show.\n :param param_decls: One or more option names. Defaults to the single\n value ``\"--version\"``.\n :param kwargs: Extra arguments are passed to :func:`option`.\n\n .. versionadded:: 8.4\n \"\"\"\n\n def callback(ctx: Context, param: Parameter, value: bool) -> None:\n if not value or ctx.resilient_parsing:\n return\n\n echo(version_func(ctx), color=ctx.color)\n ctx.exit()\n\n if not param_decls:\n param_decls = (\"--version\",)\n\n kwargs.setdefault(\"is_flag\", True)\n kwargs.setdefault(\"expose_value\", False)\n kwargs.setdefault(\"is_eager\", True)\n kwargs.setdefault(\"help\", _(\"Show the version and exit.\"))\n kwargs[\"callback\"] = callback\n return option(*param_decls, **kwargs)\n\n\ndef help_option(*param_decls''',1)\nopen(p,'w').write(s)\np='src/click/__init__.py'\ns=open(p).read()\ns=s.replace(\"from .decorators import version_option as version_option\",\"from .decorators import custom_version_option as custom_version_option\\nfrom .decorators import version_option as version_option\")\nopen(p,'w').write(s)\nE\nsed -n 20,32p src/click/__init__.py; .venv/bin/python -m pytest -q tests/test_basic.py 2>&1|tail -2"}}]}},{"n":29,"segment":0,"pos":116,"turn":0,"index":29,"stop_reason":"tool_use","context":82348,"step":{"text":"Fix import ordering (alphabetical) then commit.","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/__init__.py'\ns=open(p).read()\nl=\"from .decorators import custom_version_option as custom_version_option\\n\"\ns=s.replace(l,\"\")\ns=s.replace(\"from .decorators import group as group\\n\",l+\"from .decorators import group as group\\n\")\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q tests/test_basic.py 2>&1|tail -1\ngit commit -qam \"Issue 7: add custom_version_option decorator\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok\ngrep -n \"def test_hiding_of_unset\" -B3 -A50 tests/test_context.py; grep -n \"UNSET\" src/click/core.py | head -80"}}]}},{"n":30,"segment":0,"pos":119,"turn":0,"index":30,"stop_reason":"tool_use","context":85682,"step":{"text":"","calls":[{"name":"TaskUpdate","input":{"taskId":"5","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"6","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"7","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"8","status":"in_progress"}},{"name":"Bash","input":{"command":"sed -n 234,330p tests/test_context.py; sed -n 2590,2680p src/click/core.py; sed -n 2695,2760p src/click/core.py"}}]}},{"n":31,"segment":0,"pos":129,"turn":0,"index":31,"stop_reason":"tool_use","context":89452,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' if value is UNSET:\n value = None\n value = self.callback(ctx, self, value)\n\n return value\n''',''' if value is UNSET:\n value = None\n\n # Likewise hide UNSET values of the other parameters, so a callback\n # inspecting ``ctx.params`` never sees the sentinel.\n hidden = [k for k, v in ctx.params.items() if v is UNSET]\n for key in hidden:\n ctx.params[key] = None\n\n try:\n value = self.callback(ctx, self, value)\n finally:\n # Restore the sentinel where the callback left the hidden value\n # untouched.\n for key in hidden:\n if key in ctx.params and ctx.params[key] is None:\n ctx.params[key] = UNSET\n\n return value\n''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1|tail -1; .venv/bin/python -m pytest -q tests/test_context.py 2>&1|tail -1"}}]}},{"n":32,"segment":0,"pos":131,"turn":0,"index":32,"stop_reason":"tool_use","context":90287,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"git commit -qam \"Issue 8: hide UNSET sentinel from ctx.params during option callbacks\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_progressbar_lands_on_final_position\" -B12 -A40 tests/test_termui.py; grep -n \"class ProgressBar\" -A230 src/click/_termui_impl.py"}}]}},{"n":33,"segment":0,"pos":133,"turn":0,"index":33,"stop_reason":"tool_use","context":94450,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 273,400p src/click/_termui_impl.py"}}]}},{"n":34,"segment":0,"pos":135,"turn":0,"index":34,"stop_reason":"tool_use","context":96046,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/_termui_impl.py'\ns=open(p).read()\ns=s.replace(''' self.render_finish()\n\n def __iter__''',''' # Steps below ``update_min_steps`` are still pending; account for them\n # so the bar lands on its final position.\n if self._flush_pending_steps():\n self.render_progress()\n self.render_finish()\n\n def _flush_pending_steps(self) -> bool:\n if not self._completed_intervals:\n return False\n\n self.make_step(self._completed_intervals)\n self._completed_intervals = 0\n return True\n\n def __iter__''',1)\ns=s.replace(''' self.update(1)\n self.finish()''',''' self.update(1)\n self._flush_pending_steps()\n self.finish()''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q tests/test_termui.py 2>&1|tail -12"}}]}},{"n":35,"segment":0,"pos":137,"turn":0,"index":35,"stop_reason":"tool_use","context":97306,"step":{"text":"第 9 个问题的测试已通过，提交后开始第 10 个：函数名后缀。","calls":[{"name":"Bash","input":{"command":"git commit -qam \"Issue 9: progress bar lands on its final position\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_generate_name\" -B25 -A20 tests/test_command_decorators.py; grep -n \"def test_other_command_invoke_with_defaults\" -B5 -A20 tests/test_commands.py; grep -n \"_command\\|_group\\|_cmd\\|_grp\" src/click/decorators.py"}}]}},{"n":36,"segment":0,"pos":140,"turn":0,"index":36,"stop_reason":"tool_use","context":98282,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -n \"replace(\\\"_\\\"\\|__name__\" src/click/decorators.py"}}]}},{"n":37,"segment":0,"pos":142,"turn":0,"index":37,"stop_reason":"tool_use","context":98467,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/decorators.py'\ns=open(p).read()\ns=s.replace(''' name=name or f.__name__.lower().replace(\"_\", \"-\"),''',''' name=name or _generate_name(f.__name__),''')\ns=s.replace('''def command(''','''def _generate_name(func_name: str) -> str:\n \"\"\"Derive a command name from a function name, dropping a conventional\n ``_command``, ``_cmd``, ``_group`` or ``_grp`` suffix.\n \"\"\"\n name = func_name.lower()\n\n for suffix in (\"_command\", \"_cmd\", \"_group\", \"_grp\"):\n if name.endswith(suffix) and len(name) > len(suffix):\n name = name[: -len(suffix)]\n break\n\n return name.replace(\"_\", \"-\")\n\n\ndef command(''',1)\nopen(p,'w').write(s)\nE\ngrep -n \"^def _generate_name\" -B3 src/click/decorators.py | head; .venv/bin/python -m pytest -q 2>&1|tail -3"}}]}},{"n":38,"segment":0,"pos":144,"turn":0,"index":38,"stop_reason":"tool_use","context":99201,"step":{"text":"I inserted the helper into the middle of an overload block. Move it.","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/decorators.py'\ns=open(p).read()\ni=s.index(\"def _generate_name\")\nj=s.index(\"def command(\",i)\nhelper=s[i:j]\ns=s[:i]+s[j:]\nk=s.index(\"# variant: no call, directly as decorator for a function.\")\ns=s[:k]+helper+s[k:]\nopen(p,'w').write(s)\nE\nsed -n 128,155p src/click/decorators.py; .venv/bin/python -m pytest -q 2>&1|tail -1"}}]}},{"n":39,"segment":0,"pos":147,"turn":0,"index":39,"stop_reason":"tool_use","context":100474,"step":{"text":"","calls":[{"name":"TaskUpdate","input":{"taskId":"8","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"9","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"10","status":"in_progress"}},{"name":"Bash","input":{"command":".venv/bin/python -m pytest -q tests/test_command_decorators.py tests/test_commands.py 2>&1|grep -E \"generate_name|invoke_with_defaults|passed|failed\""}}]}},{"n":40,"segment":0,"pos":155,"turn":0,"index":40,"stop_reason":"tool_use","context":101004,"step":{"text":"Issue 10's tests pass. Commit and move to issue 11.","calls":[{"name":"Bash","input":{"command":"git commit -qam \"Issue 10: drop conventional suffixes from generated command names\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_subcommand_metavar_marks_optional\" -B25 -A20 tests/test_commands.py; grep -n \"subcommand_metavar\" -B3 -A8 src/click/core.py"}}]}},{"n":41,"segment":0,"pos":158,"turn":0,"index":41,"stop_reason":"tool_use","context":103119,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' if chain:\n subcommand_metavar = \"COMMAND1 [ARGS]... [COMMAND2 [ARGS]...]...\"\n else:\n subcommand_metavar = \"COMMAND [ARGS]...\"\n''',''' # The leading subcommand is bracketed when it can be omitted.\n first = \"COMMAND1\" if chain else \"COMMAND\"\n\n if invoke_without_command:\n first = f\"[{first}]\"\n\n if chain:\n subcommand_metavar = f\"{first} [ARGS]... [COMMAND2 [ARGS]...]...\"\n else:\n subcommand_metavar = f\"{first} [ARGS]...\"\n''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1|tail -1"}}]}},{"n":42,"segment":0,"pos":160,"turn":0,"index":42,"stop_reason":"tool_use","context":103610,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"git commit -qam \"Issue 11: mark the subcommand optional in usage when invoke_without_command is set\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"pipepager\\|tempfile_pager\\|less\" tests/test_termui.py | head -60; grep -n \"def _pipepager\\|def _tempfilepager\\|def pager\\|def _nullpager\" src/click/_termui_impl.py"}}]}},{"n":43,"segment":0,"pos":162,"turn":0,"index":43,"stop_reason":"tool_use","context":105619,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 440,660p src/click/_termui_impl.py; sed -n 775,935p tests/test_termui.py; sed -n 1165,1205p tests/test_termui.py; sed -n 1240,1262p tests/test_termui.py"}}]}},{"n":44,"segment":0,"pos":164,"turn":0,"index":44,"stop_reason":"tool_use","context":111998,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -rn \"_tempfilepager(\\|_pipepager(\" tests src | grep -v \"def \""}}]}},{"n":45,"segment":0,"pos":166,"turn":0,"index":45,"stop_reason":"tool_use","context":113117,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/_termui_impl.py'\ns=open(p).read()\ns=s.replace(\"return _tempfilepager(cmd_path, color)\",\"return _tempfilepager(cmd_path, cmd_params, color)\")\ns=s.replace('''def _tempfilepager(\n cmd_path: Path, color: bool | None = None\n)''','''def _tempfilepager(\n cmd_path: Path, cmd_params: list[str], color: bool | None = None\n)''')\ns=s.replace(''' platforms. The command is invoked with the temporary file as its only\n argument: any parameters the user set in ``PAGER`` are not passed on.\n''',''' platforms. The command is invoked with the parameters the user set in\n ``PAGER`` followed by the temporary file.\n''')\ns=s.replace(\"subprocess.call([str(cmd_path), f.name])\",\"subprocess.call([str(cmd_path), *cmd_params, f.name])\")\nold=s[s.index(\" # If we're piping to less and the user hasn't decided on colors, we enable\"):s.index(\" c = subprocess.Popen(\\n [str(cmd_path)] + cmd_params,\")]\nnew=''' # If we're piping to less and the user hasn't decided on colors, we enable\n # them by default, unless we find a raw control chars flag (-r, -R or\n # --raw-control-chars) in the LESS environment variable or the command line\n # arguments.\n if color is None and _is_less(cmd_path):\n less_tokens = [*_split_less_env(os.environ.get(\"LESS\", \"\")), *cmd_params]\n if not less_tokens:\n env[\"LESS\"] = \"-R\"\n color = True\n elif _requests_raw_mode(less_tokens):\n color = True\n\n'''\ns=s.replace(old,new)\ns=s.replace('''@contextlib.contextmanager\ndef _pipepager(''','''def _is_less(cmd_path: Path) -> bool:\n \"\"\"Whether the pager command is ``less``, matching the stem so that\n ``less.exe`` counts. Windows filesystems are case-insensitive, so the match\n casefolds there.\n \"\"\"\n stem = cmd_path.stem\n return (stem.casefold() if WIN else stem) == \"less\"\n\n\ndef _split_less_env(value: str) -> list[str]:\n try:\n return shlex.split(value)\n except ValueError:\n return value.split()\n\n\ndef _requests_raw_mode(tokens: list[str]) -> bool:\n \"\"\"Whether ``less`` option tokens ask for raw control characters. Only\n option tokens are inspected: filenames, values and everything after ``--``\n are ignored.\n \"\"\"\n for token in tokens:\n if token == \"--\":\n break\n\n if token.startswith(\"--\"):\n if token.lower() == \"--raw-control-chars\":\n return True\n elif token.startswith(\"-\") and (\"r\" in token or \"R\" in token):\n return True\n\n return False\n\n\n@contextlib.contextmanager\ndef _pipepager(''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1|tail -1; .venv/bin/python -m pytest -q tests/test_termui.py 2>&1|grep FAILED"}}]}},{"n":46,"segment":0,"pos":168,"turn":0,"index":46,"stop_reason":"tool_use","context":114469,"step":{"text":"第 12 个问题的 4 组测试都过了，提交后进入第 13 个（`type_cast_value` 不应看到 UNSET）。","calls":[{"name":"Bash","input":{"command":"git commit -qam \"Issue 12: forward PAGER params to tempfile pager and parse less option tokens\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"never_sees_unset\" -B30 -A40 tests/test_options.py | head -120; grep -n \"def type_cast_value\" -A50 src/click/core.py"}}]}},{"n":47,"segment":0,"pos":171,"turn":0,"index":47,"stop_reason":"tool_use","context":118007,"step":{"text":"","calls":[{"name":"TaskUpdate","input":{"taskId":"10","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"11","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"12","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"13","status":"in_progress"}},{"name":"Bash","input":{"command":"sed -n 2576,2600p src/click/core.py; grep -n \"def test_argument_custom_class_can_override\" -B18 -A20 tests/test_arguments.py"}}]}},{"n":48,"segment":0,"pos":181,"turn":0,"index":48,"stop_reason":"tool_use","context":119390,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -n \"type_cast_value\" src/click/*.py"}}]}},{"n":49,"segment":0,"pos":183,"turn":0,"index":49,"stop_reason":"tool_use","context":120775,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 885,905p src/click/core.py"}}]}},{"n":50,"segment":0,"pos":185,"turn":0,"index":50,"stop_reason":"tool_use","context":121205,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' value = self.type_cast_value(ctx, value)\n\n if self.required and self.value_is_missing(value):''',''' # User code (e.g. an overridden ``type_cast_value``) never sees the\n # internal ``UNSET`` sentinel: it is presented as ``None`` and restored\n # afterwards if the value is still unset, so it is reported as missing.\n was_unset = value is UNSET\n\n if was_unset:\n value = self._value_when_unset()\n\n value = self.type_cast_value(ctx, value)\n\n if was_unset and value is None:\n value = UNSET\n\n if self.required and self.value_is_missing(value):''',1)\ns=s.replace(''' def value_is_missing(self, value: t.Any) -> bool:\n \"\"\"A value is considered missing if:''',''' def _value_when_unset(self) -> t.Any:\n \"\"\"The value handed to :meth:`type_cast_value` when nothing was\n provided for this parameter.\n \"\"\"\n return None\n\n def value_is_missing(self, value: t.Any) -> bool:\n \"\"\"A value is considered missing if:''',1)\ns=s.replace(''' def type_cast_value(self, ctx: Context, value: t.Any) -> t.Any:\n if self.is_flag and not self.required:''',''' def _value_when_unset(self) -> t.Any:\n # A non-required boolean flag that is not set is ``False``.\n if self.is_flag and not self.required and self.is_bool_flag:\n return False\n\n return None\n\n def type_cast_value(self, ctx: Context, value: t.Any) -> t.Any:\n if self.is_flag and not self.required:''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1|tail -1; .venv/bin/python -m pytest -q 2>&1|grep FAILED|grep -i \"never\\|flag\""}}]}},{"n":51,"segment":0,"pos":187,"turn":0,"index":51,"stop_reason":"tool_use","context":122047,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"git commit -qam \"Issue 13: never pass UNSET to type_cast_value\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_echo_via_pager_streams_each_write\" -A45 tests/test_termui.py; grep -n \"def echo_via_pager\" -A60 src/click/termui.py | tail -45"}}]}},{"n":52,"segment":0,"pos":189,"turn":0,"index":52,"stop_reason":"tool_use","context":123684,"step":{"text":"第 14 个问题：每次写入后都 flush。","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/termui.py'\ns=open(p).read()\ns=s.replace(''' pager.write(text)\n\n''',''' pager.write(text)\n # Flush each chunk so a slow generator streams to the pager as it\n # is produced instead of buffering until the end.\n pager.flush()\n\n''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1|tail -1; .venv/bin/python -m pytest -q 2>&1|grep FAILED|grep pager"}}]}},{"n":53,"segment":0,"pos":192,"turn":0,"index":53,"stop_reason":"tool_use","context":124019,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"git commit -qam \"Issue 14: flush each chunk when paging a generator\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_get_help_option_names\" -B30 -A15 tests/test_commands.py"}}]}},{"n":54,"segment":0,"pos":194,"turn":0,"index":54,"stop_reason":"tool_use","context":125025,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' all_names = set(ctx.help_option_names)\n for param in self.params:\n all_names.difference_update(param.opts)\n all_names.difference_update(param.secondary_opts)\n return list(all_names)''',''' taken: set[str] = set()\n for param in self.params:\n taken.update(param.opts)\n taken.update(param.secondary_opts)\n # ``dict.fromkeys`` deduplicates while keeping the declared order.\n return [n for n in dict.fromkeys(ctx.help_option_names) if n not in taken]''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1|tail -1"}}]}},{"n":55,"segment":0,"pos":196,"turn":0,"index":55,"stop_reason":"tool_use","context":125423,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"git commit -qam \"Issue 15: keep declaration order in get_help_option_names\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_isolated_filesystem_deprecated\" -B5 -A25 tests/test_deprecations.py; grep -n \"def isolated_filesystem\" -B3 -A40 src/click/testing.py"}}]}},{"n":56,"segment":0,"pos":198,"turn":0,"index":56,"stop_reason":"tool_use","context":126855,"step":{"text":"","calls":[{"name":"TaskUpdate","input":{"taskId":"13","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"14","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"15","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"16","status":"in_progress"}},{"name":"Bash","input":{"command":"grep -rn \"isolated_filesystem\" src tests --include=*.py -l; grep -n \"filterwarnings\" -A6 pyproject.toml; grep -n \"^import\\|^from\" src/click/testing.py | head -20"}}]}},{"n":57,"segment":0,"pos":208,"turn":0,"index":57,"stop_reason":"tool_use","context":127732,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -rln \"isolated_filesystem\" src tests docs 2>/dev/null; python3 - <<'E'\np='src/click/testing.py'\ns=open(p).read()\ns=s.replace(''' .. versionchanged:: 8.0\n Added the ``temp_dir`` parameter.\n \"\"\"\n cwd = os.getcwd()''',''' .. deprecated:: 8.5\n Use :func:`pytest.tmp_path` with ``monkeypatch.chdir`` or\n :class:`tempfile.TemporaryDirectory` instead. This predates\n Python 3 and pytest being in common use and would not be added\n today.\n\n Limits: it only changes the process-wide working directory, so it\n is not thread-safe, and it does not isolate anything else.\n\n .. versionchanged:: 8.0\n Added the ``temp_dir`` parameter.\n \"\"\"\n import warnings\n\n warnings.warn(\n \"'isolated_filesystem' is deprecated and will be removed in Click\"\n \" 9.0. Use pytest's 'tmp_path' fixture or\"\n \" 'tempfile.TemporaryDirectory' instead.\",\n DeprecationWarning,\n stacklevel=3,\n )\n cwd = os.getcwd()''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1|tail -8"}}]}},{"n":58,"segment":0,"pos":210,"turn":0,"index":58,"stop_reason":"tool_use","context":128917,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -n \"isolated_filesystem\" -B3 tests/test_testing.py | head -30; .venv/bin/python -m pytest -q tests/test_testing.py 2>&1|tail -3"}}]}},{"n":59,"segment":0,"pos":212,"turn":0,"index":59,"stop_reason":"tool_use","context":129631,"step":{"text":"Good. Commit and start issue 17 (before I do 17, note the docs mention it too; I'll add a changelog line if a CHANGES file exists).","calls":[{"name":"Bash","input":{"command":"git commit -qam \"Issue 16: deprecate CliRunner.isolated_filesystem\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_progressbar_item_show_func\" -B3 -A40 tests/test_termui.py"}}]}},{"n":60,"segment":0,"pos":215,"turn":0,"index":60,"stop_reason":"tool_use","context":130526,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"cat > /tmp/x.py <<'E'\nimport click, click._termui_impl as m\nm.isatty=lambda _:True\nfrom click.testing import CliRunner\n@click.command()\ndef cli():\n with click.progressbar(range(3), item_show_func=lambda x: str(x)) as progress:\n for item in progress:\n click.echo(f\" item {item}\")\nprint(repr(CliRunner().invoke(cli).output))\nE\n.venv/bin/python /tmp/x.py"}}]}},{"n":61,"segment":0,"pos":217,"turn":0,"index":61,"stop_reason":"tool_use","context":130879,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/_termui_impl.py'\ns=open(p).read()\ns=s.replace(''' self.current_item = rv\n yield rv''',''' self.current_item = rv\n # Render so the bar shows the item being processed.\n self.render_progress()\n yield rv''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python /tmp/x.py; .venv/bin/python -m pytest -q 2>&1|tail -1; .venv/bin/python -m pytest -q tests/test_termui.py 2>&1|grep FAILED"}}]}},{"n":62,"segment":0,"pos":219,"turn":0,"index":62,"stop_reason":"tool_use","context":131738,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"git commit -qam \"Issue 17: show the item being processed via item_show_func\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_deprecated_empty_help_no_leading_space\" -B25 -A25 tests/test_commands.py; grep -n \"def test_deprecated_empty_help_no_leading_space\" -B22 -A25 tests/test_options.py; grep -n \"_format_deprecated_label\" -B3 -A25 src/click/core.py | head -120"}}]}},{"n":63,"segment":0,"pos":221,"turn":0,"index":63,"stop_reason":"tool_use","context":135732,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 1224,1237p src/click/core.py; sed -n 1258,1268p src/click/core.py"}}]}},{"n":64,"segment":0,"pos":223,"turn":0,"index":64,"stop_reason":"tool_use","context":136255,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' text = f\"{_(text)} {_format_deprecated_label(self.deprecated)}\"''',''' label = _format_deprecated_label(self.deprecated)\n text = f\"{_(text)} {label}\" if text else label''')\ns=s.replace(''' help = f\"{help} {label}\" if help is not None else label''',''' help = f\"{help} {label}\" if help else label''')\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1|tail -1; .venv/bin/python -m pytest -q 2>&1|grep FAILED|grep deprec"}}]}},{"n":65,"segment":0,"pos":225,"turn":0,"index":65,"stop_reason":"tool_use","context":137324,"step":{"text":"第 18 个问题已通过。更新任务列表，提交，然后做第 19 个（typing_extensions）。","calls":[{"name":"TaskUpdate","input":{"taskId":"16","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"17","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"18","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"19","status":"in_progress"}},{"name":"Bash","input":{"command":"git commit -qam \"Issue 18: no leading space before deprecation label when help is empty\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -rn \"typing_extensions\" src/click/*.py; grep -n \"def test_light_imports\" -B5 -A40 tests/test_imports.py"}}]}},{"n":66,"segment":0,"pos":236,"turn":0,"index":66,"stop_reason":"tool_use","context":138492,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 1,66p tests/test_imports.py; .venv/bin/python -m pytest -q tests/test_imports.py 2>&1 | grep -B5 Error | head -30; python3 - <<'E'\nE\n.venv/bin/python -c \"\nimport sys,click\nprint(sorted(m for m in sys.modules if not m.startswith('click')))\" | tr ',' '\\n' | grep -n \"builtins\\|typing\" "}}]}},{"n":67,"segment":0,"pos":238,"turn":0,"index":67,"stop_reason":"tool_use","context":139442,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -n \"builtins\" src/click/*.py; python3 - <<'E'\nE\n.venv/bin/python - <<'E'\nimport subprocess,sys,json\nsys.path.insert(0,'tests')\nimport test_imports as t\nrv=subprocess.run([sys.executable,'-'],input=t.IMPORT_TEST,capture_output=True).stdout\nprint([m for m in json.loads(rv) if m not in t.ALLOWED_IMPORTS])\nE"}}]}},{"n":68,"segment":0,"pos":240,"turn":0,"index":68,"stop_reason":"tool_use","context":139884,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 25,45p src/click/termui.py; sed -n 135,150p src/click/termui.py; sed -n 20,32p src/click/types.py; sed -n 14,20p src/click/decorators.py; sed -n 20,28p src/click/utils.py; git log --oneline -3 -- tests/test_imports.py"}}]}},{"n":69,"segment":0,"pos":242,"turn":0,"index":69,"stop_reason":"tool_use","context":140765,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -n \"TypeVar\" src/click/types.py src/click/shell_completion.py; sed -n 56,66p src/click/shell_completion.py; grep -n \"requires-python\" pyproject.toml; grep -n \"typing.extensions\\|typing_extensions\" pyproject.toml"}}]}},{"n":70,"segment":0,"pos":244,"turn":0,"index":70,"stop_reason":"tool_use","context":141769,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 62,80p src/click/_winconsole.py; python3 - <<'E'\np='src/click/types.py'\ns=open(p).read()\nold='''# TypeVar(default=...) support.\nif sys.version_info >= (3, 13):\n from typing import TypeVar\nelse:\n from typing_extensions import TypeVar\n\n'''\nassert old in s\ns=s.replace(old,'')\ns=s.replace('_InputT_contra = TypeVar(\"_InputT_contra\", contravariant=True, default=t.Any)','''if t.TYPE_CHECKING:\n # ``TypeVar(default=...)`` needs ``typing_extensions`` before Python 3.13.\n # It is only used by type checkers, never imported at runtime.\n if sys.version_info >= (3, 13):\n from typing import TypeVar\n else:\n from typing_extensions import TypeVar\n\n _InputT_contra = TypeVar(\"_InputT_contra\", contravariant=True, default=t.Any)\nelse:\n _InputT_contra = t.TypeVar(\"_InputT_contra\", contravariant=True)''')\nopen(p,'w').write(s)\np='src/click/termui.py'\ns=open(p).read()\ns=s.replace(\"import builtins\\n\",\"\",1)\ns=s.replace(\"return builtins.type(default) is builtins.type(type)\",\"return _builtin_type(default) is _builtin_type(type)\")\ns=s.replace('V = t.TypeVar(\"V\")','# ``type`` is shadowed by parameters below.\\n_builtin_type = type\\n\\nV = t.TypeVar(\"V\")',1)\nopen(p,'w').write(s)\nE\nsed -n 18,45p src/click/types.py; .venv/bin/python -m pytest -q 2>&1|tail -1"}}]}},{"n":71,"segment":0,"pos":246,"turn":0,"index":71,"stop_reason":"tool_use","context":143359,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest -q -x 2>&1 | grep -B15 \"TypeError: Too few\" | head -40"}}]}},{"n":72,"segment":0,"pos":248,"turn":0,"index":72,"stop_reason":"tool_use","context":143979,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -n \"ParamType\\[\" src/click/*.py | grep -v \"^\\S*:\\s*#\" | grep \"class \\|isinstance\\|=\" | head -30; grep -n \"class ParamType\" -A3 src/click/types.py"}}]}},{"n":73,"segment":0,"pos":250,"turn":0,"index":73,"stop_reason":"tool_use","context":145013,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 53,75p src/click/types.py"}}]}},{"n":74,"segment":0,"pos":252,"turn":0,"index":74,"stop_reason":"tool_use","context":146058,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 76,100p src/click/types.py"}}]}},{"n":75,"segment":0,"pos":254,"turn":0,"index":75,"stop_reason":"tool_use","context":147200,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/types.py'\ns=open(p).read()\ns=s.replace(''' is_composite: t.ClassVar[bool] = False\n arity: int = 1 # read-only\n''',''' if not t.TYPE_CHECKING:\n\n def __class_getitem__(cls, params: t.Any) -> t.Any:\n # Without ``typing_extensions.TypeVar`` the input type parameter has\n # no default at runtime, so pad it with ``Any`` to allow\n # ``ParamType[int]``.\n if cls is ParamType and not isinstance(params, tuple):\n params = (params, t.Any)\n\n return super().__class_getitem__(params)\n\n is_composite: t.ClassVar[bool] = False\n arity: int = 1 # read-only\n''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1|tail -3"}}]}},{"n":76,"segment":0,"pos":256,"turn":0,"index":76,"stop_reason":"tool_use","context":147792,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -c \"\nimport sys,click\nprint('typing_extensions' in sys.modules)\nclass A(click.ParamType[int]): name='a'\nclass B(click.ParamType[int,str]): name='b'\nprint(A.__orig_bases__)\"; .venv/bin/python -m pytest -q tests/test_imports.py 2>&1|tail -1\ngit commit -qam \"Issue 19: avoid importing typing_extensions and builtins at runtime\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok\ngrep -n \"def write_usage\" -A50 src/click/formatting.py; grep -n \"no_args\\|without_args\" -B12 -A30 tests/test_formatting.py | head -200"}}]}},{"n":77,"segment":0,"pos":258,"turn":0,"index":77,"stop_reason":"tool_use","context":149882,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 545,582p tests/test_formatting.py"}}]}},{"n":78,"segment":0,"pos":260,"turn":0,"index":78,"stop_reason":"tool_use","context":150382,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/formatting.py'\ns=open(p).read()\ns=s.replace(''' usage_prefix = f\"{prefix:>{self.current_indent}}{prog} \"\n text_width''',''' if not args:\n # Nothing to wrap: no trailing separator and no empty argument line.\n self.write(f\"{prefix:>{self.current_indent}}{prog}\\\\n\")\n return\n\n usage_prefix = f\"{prefix:>{self.current_indent}}{prog} \"\n text_width''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1|tail -3"}}]}},{"n":79,"segment":0,"pos":262,"turn":0,"index":79,"stop_reason":"tool_use","context":150935,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"git commit -qam \"Issue 20: no spurious characters in write_usage without args\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; git status --short; git log --oneline | head -22; .venv/bin/python -m pytest -q 2>&1|tail -1"}},{"name":"TaskUpdate","input":{"taskId":"19","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"20","status":"completed"}}]}},{"n":80,"segment":0,"pos":268,"turn":0,"index":80,"stop_reason":"end_turn","context":152028,"step":{"text":"20 个问题都做完了，每个单独一次提交，提交信息写明\"Issue N\"。最后整个测试集是 2058 通过、25 跳过、1 xfail，没有失败，也没有改动、跳过或删除任何测试。\n\n各问题的改法：\n\n1. `echo` 不再把空 bytes 换成空字符串（`utils.py`）。\n2. `Command.main` 里，Ctrl-C 在报告 abort、报错或退出期间到来时，仍保留原来的退出码，消息尽力输出。非 standalone 模式下中断照常抛给调用方（`core.py`）。\n3. 可选的 `Choice` 或 `DateTime` 参数，其 metavar 已带方括号时不再重复包一层。\n4. `click.edit` 的 `filename` 接受 `os.PathLike`，运行时用 `os.fspath` 转换。\n5. 自动 help 选项内部改存为保留名 `_click_default_help`。参数与其他参数重名，或占用了这个保留名时会发出警告。\n6. 补全脚本以字节写出，保证只用 LF 换行。\n7. 新增 `click.custom_version_option`。\n8. 选项回调执行期间，`ctx.params` 里的 UNSET 显示为 `None`，回调结束后没被改动的再还原。\n9. 进度条结束时把不足 `update_min_steps` 的剩余步数补上，停在最终位置。\n10. 生成命令名时去掉 `_command`、`_cmd`、`_group`、`_grp` 后缀。\n11. `invoke_without_command` 时，用法行里的子命令标成 `[COMMAND]`。\n12. PAGER 的参数会传给临时文件 pager。判断 `less` 时改用命令的 stem，Windows 上不区分大小写，并解析选项 token 找 `-r`、`-R`、`--raw-control-chars`。\n13. 传给 `type_cast_value` 的 UNSET 先换成 `None`，处理完若仍为 `None` 再还原成 UNSET。\n14. `echo_via_pager` 每写一块就 flush。\n15. `get_help_option_names` 去重并保持声明顺序。\n16. `CliRunner.isolated_filesystem` 发出 `DeprecationWarning`，文档里补了替代做法和局限。\n17. 进度条在处理每个 item 时先渲染，`item_show_func` 显示的就是当前 item。\n18. 帮助文本为空时，弃用标签前不再多出空格。\n19. `types.py` 的 `TypeVar(default=...)` 只留给类型检查。运行时给 `ParamType` 加了 `__class_getitem__`，让 `ParamType[int]` 仍可用。另外去掉了 `termui.py` 里运行时的 `import builtins`，这才是 `test_light_imports` 实际失败的原因。\n20. `write_usage` 在没有参数时不再输出多余的空格或空行。\n\n第 2 个问题的三个测试在没改代码时时好时坏，改完后我单独连跑了 3 次全过。第 17 个问题里，`update()` 之后进度条会先用旧 item 多渲染一次，这是我接受的小瑕疵。\n\nALL ISSUES DONE","calls":[]}}]} diff --git a/eval/replay/click-zh--off.labels b/eval/replay/click-zh--off.labels new file mode 100644 index 0000000..7ca0dd3 --- /dev/null +++ b/eval/replay/click-zh--off.labels @@ -0,0 +1,13 @@ +# click-zh--off: the click-zh workload, arm off: 20 real click changes in one Chinese message, with a task list and a commit per issue. Claude Code 2.1.280, Sonnet 5, 2026-09-23. +# One line per step taskcut would judge: N moves on, S does not, E either. See eval/replay/LABELS.md. +2 E Start with issue 1. +8 N 我正在做第 2 个问题，也就是 Ctrl-C 竞态。第 1 个问题已经提交。接下来读 `Command.main` 的相关代码。 +14 N 正在做第 4 个问题：让 `click.edit` 接受 `pathlib.Path`。 +29 S Fix import ordering (alphabetical) then commit. +35 N 第 9 个问题的测试已通过，提交后开始第 10 个：函数名后缀。 +38 S I inserted the helper into the middle of an overload block. Move it. +40 N Issue 10's tests pass. Commit and move to issue 11. +46 N 第 12 个问题的 4 组测试都过了，提交后进入第 13 个（`type_cast_value` 不应看到 UNSET）。 +52 N 第 14 个问题：每次写入后都 flush。 +59 N Good. Commit and start issue 17 (before I do 17, note the docs mention it too; I'll add a changelog line if a CHANGES file exists). +65 N 第 18 个问题已通过。更新任务列表，提交，然后做第 19 个（typing_extensions）。 diff --git a/eval/replay/click-zh--on.json b/eval/replay/click-zh--on.json new file mode 100644 index 0000000..cd5d224 --- /dev/null +++ b/eval/replay/click-zh--on.json @@ -0,0 +1 @@ +{"name":"click-zh--on","source":"the click-zh workload, arm on: the same at a floor of 30, which it never reached. 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standalone_mode:\n # Skip constructing Abort, a late interrupt must not\n # replace the exit code.\n _best_effort(echo, _(\"Aborted!\"), file=sys.stderr)\n _exit(1)\n raise Abort() from e\n except ClickException as e:\n if not standalone_mode:\n raise\n _best_effort(e.show)\n _exit(e.exit_code)\n''')\ns=s.replace(''' except Exit as e:\n if standalone_mode:\n sys.exit(e.exit_code)\n''',''' except Exit as e:\n if standalone_mode:\n _exit(e.exit_code)\n''')\ns=s.replace(''' echo(_(\"Aborted!\"), file=sys.stderr)\n sys.exit(1)\n\n def _main_shell''',''' _best_effort(echo, _(\"Aborted!\"), file=sys.stderr)\n _exit(1)\n\n def _main_shell''')\ns=s.replace('''class Context:''','''def _best_effort(func: t.Callable[..., t.Any], *args: t.Any, **kwargs: t.Any) -> None:\n \"\"\"Call ``func``, ignoring a late ``KeyboardInterrupt``.\"\"\"\n try:\n func(*args, **kwargs)\n except KeyboardInterrupt:\n pass\n\n\ndef _exit(code: t.Any) -> t.NoReturn:\n \"\"\"Exit with ``code``, even if interrupted while exiting.\"\"\"\n try:\n sys.exit(code)\n except KeyboardInterrupt:\n sys.exit(code)\n\n\nclass Context:''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q tests/test_abort_interrupt.py 2>&1 | tail -8; .venv/bin/python -m pytest -q 2>&1 | tail -1"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01GfkHB8MA6pCCxgwzDtvbV1","text":""}]},{"role":"assistant","text":"Issue 1 is committed, and issue 2 now passes (86 → 81 failures). I'm committing issue 2 and moving on to issue 3.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01AWmmMeUcT4y9UTA3vmoGMX","tool":"Bash","input":{"command":"git commit -qam \"Issue 2: make Command.main robust to late KeyboardInterrupt\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok\ngrep -n \"optional_metavar\" -B3 -A20 tests/test_basic.py | head -60; grep -n \"def make_metavar\" -B3 -A25 src/click/core.py src/click/types.py | head -120"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01AWmmMeUcT4y9UTA3vmoGMX","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01MFnALXUBdM5vAnExkWy5zQ","tool":"Bash","input":{"command":"sed -n 640,650p tests/test_basic.py; sed -n 668,676p tests/test_basic.py; grep -n \"def get_metavar\" -A22 src/click/types.py | grep -n \"\\[\\|def\\|class\" "}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01MFnALXUBdM5vAnExkWy5zQ","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01KvNXsonu68jY9SW929QgMu","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' if not self.required:\n var = f\"[{var}]\"\n if self.nargs != 1:\n var += \"...\"\n return var''',''' if not self.required and not (var.startswith(\"[\") and var.endswith(\"]\")):\n var = f\"[{var}]\"\n if self.nargs != 1:\n var += \"...\"\n return var''')\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q tests/test_basic.py 2>&1 | tail -8"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01KvNXsonu68jY9SW929QgMu","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_019D7sV2mCC3eaB3ro1x2Mbr","tool":"Bash","input":{"command":".venv/bin/python -m pytest -q 2>&1 | tail -1; git commit -qam \"Issue 3: avoid doubled brackets in optional Choice/DateTime argument metavar\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok\ngrep -n \"def edit\" -A45 src/click/termui.py | grep -n \"filename\" ; grep -n \"filename\" src/click/_termui_impl.py | head -40; grep -n \"def test_edit_pathlib\" -B5 -A30 tests/test_termui.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_019D7sV2mCC3eaB3ro1x2Mbr","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01MQZJSbkwHoNGsbyiygrkHy","tool":"Bash","input":{"command":"sed -n 820,905p src/click/termui.py; sed -n 655,690p src/click/_termui_impl.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01MQZJSbkwHoNGsbyiygrkHy","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01VazS1PVPAxM4RGg3CxpZEB","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/termui.py'\ns=open(p).read()\ns=s.replace(\"filename: str | cabc.Iterable[str] | None = None,\",\"filename: str | os.PathLike[str] | cabc.Iterable[str | os.PathLike[str]] | None = None,\")\ns=s.replace(''' if isinstance(filename, str):\n filename = (filename,)\n\n ed.edit_files(filenames=filename)''',''' if isinstance(filename, (str, os.PathLike)):\n filename = (filename,)\n\n ed.edit_files(filenames=[os.fspath(f) for f in filename])''')\ns=s.replace(''' .. versionchanged:: 8.2.0\n ``filename`` now accepts any ``Iterable[str]``''',''' .. versionchanged:: 8.5.0\n ``filename`` accepts :class:`os.PathLike` values.\n\n .. versionchanged:: 8.2.0\n ``filename`` now accepts any ``Iterable[str]``''',1)\nopen(p,'w').write(s)\nE\ngrep -n \"^import os\" src/click/termui.py; ruff format src/click/termui.py 2>/dev/null || .venv/bin/ruff format src/click/termui.py 2>&1|tail -1\n.venv/bin/python -m pytest -q tests/test_termui.py -k edit 2>&1 | tail -3; .venv/bin/python -m pytest -q 2>&1 | tail -1"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01VazS1PVPAxM4RGg3CxpZEB","text":""}]},{"role":"assistant","text":"Issue 4 needs `import os` in termui.py. I'll add it and format the long signature line by hand.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01H3JVUPu6jdm3B1hCnhCrNB","tool":"Bash","input":{"command":"sed -n 1,25p src/click/termui.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01H3JVUPu6jdm3B1hCnhCrNB","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01UgL9GGjD49VbZBwbRQujF4","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/termui.py'\ns=open(p).read()\ns=s.replace(\"import itertools\\nimport re\",\"import itertools\\nimport os\\nimport re\",1)\ns=s.replace(\" filename: str | os.PathLike[str] | cabc.Iterable[str | os.PathLike[str]] | None = None,\",\" filename: str\\n | os.PathLike[str]\\n | cabc.Iterable[str | os.PathLike[str]]\\n | None = None,\")\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -1; git commit -qam \"Issue 4: accept os.PathLike filenames in click.edit\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01UgL9GGjD49VbZBwbRQujF4","text":""}]},{"role":"assistant","text":"Issue 5 is the largest so far, so I'm reading the tests first.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01QbToTubCV2LnSy4j7itBQM","tool":"Bash","input":{"command":"grep -n \"def test_param_named_help\" -B25 -A50 tests/test_basic.py; grep -n \"def test_argument_sharing_param_name_warning\" -B5 -A40 tests/test_options.py; git diff HEAD~0 --stat; grep -n \"help\" src/click/core.py | grep -in \"get_help_option\\|help_option\\|_click_default\" "}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01QbToTubCV2LnSy4j7itBQM","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01YK2KEhWtxsC2MrqEFhveN1","tool":"Bash","input":{"command":"sed -n 1100,1200p src/click/core.py; grep -n \"def help_option\" -A45 src/click/decorators.py; grep -n \"used more than once\" -B30 -A8 src/click/core.py; .venv/bin/python -m pytest -q tests/test_info_dict.py 2>&1 | grep -B5 -A25 \"test_command\\b\" | head -80"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01YK2KEhWtxsC2MrqEFhveN1","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01QNyBkqxhiNmW4rvPGGs9ya","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' help_option(*help_option_names)(self)''',''' # The value is stored under a reserved name so that it can never\n # clash with a user parameter named ``help``.\n help_option(*help_option_names, _HELP_OPTION_NAME)(self)''')\ns=s.replace(''' opts = [opt for param in params for opt in param.opts]\n''',''' for param in self.params:\n if help_option is not None and param.name == _HELP_OPTION_NAME:\n warnings.warn(\n f\"The parameter name {_HELP_OPTION_NAME!r} is reserved for\"\n \" the automatic help option. Rename the parameter.\",\n stacklevel=3,\n )\n\n names_counter = Counter(p.name for p in params if p.name is not None)\n for param in params:\n if (\n isinstance(param, Argument)\n and param.name is not None\n and names_counter[param.name] > 1\n ):\n warnings.warn(\n f\"The parameter name {param.name!r} is used by an argument\"\n \" and another parameter. Their values overwrite each other.\",\n stacklevel=3,\n )\n\n opts = [opt for param in params for opt in param.opts]\n''')\ns=s.replace('''def _best_effort(''','''_HELP_OPTION_NAME = \"_click_default_help\"\n\n\ndef _best_effort(''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -12"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01QNyBkqxhiNmW4rvPGGs9ya","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01BLaifBw1zEKWca2zyPX87t","tool":"Bash","input":{"command":".venv/bin/python -m pytest -q tests/test_basic.py tests/test_info_dict.py tests/test_options.py 2>&1 | grep FAILED; .venv/bin/python -m pytest -q tests/test_basic.py tests/test_info_dict.py tests/test_options.py -k \"help or argument_sharing or test_context\" 2>&1 | tail -3"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01BLaifBw1zEKWca2zyPX87t","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01LW6oJELzM5Fgyb1qaoht8c","tool":"Bash","input":{"command":".venv/bin/python -m pytest -q tests/test_basic.py -k squatting 2>&1 | head -50"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01LW6oJELzM5Fgyb1qaoht8c","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01KAG55Gd1K4qRa1TfchpcjF","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' and names_counter[param.name] > 1\n''',''' and param.name != _HELP_OPTION_NAME\n and names_counter[param.name] > 1\n''')\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -1; git commit -qam \"Issue 5: store help option under a reserved name and warn on name collisions\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01KAG55Gd1K4qRa1TfchpcjF","text":""}]},{"role":"assistant","text":"Issue 5 is committed (66 failures left). I'm updating the task list, then starting issue 6.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01ErPqWUjiJtzGk4o8iPdpaR","tool":"TaskUpdate","input":{"taskId":"1","status":"completed"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01ErPqWUjiJtzGk4o8iPdpaR","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01CzDFJBr4vhuTn4VgormLrz","tool":"TaskUpdate","input":{"taskId":"2","status":"completed"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01CzDFJBr4vhuTn4VgormLrz","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01WZvWYzVLQYLJH1BsNePerg","tool":"TaskUpdate","input":{"taskId":"3","status":"completed"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01WZvWYzVLQYLJH1BsNePerg","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01WcNTGxjciK3gkWAk58Hk4w","tool":"TaskUpdate","input":{"taskId":"4","status":"completed"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01WcNTGxjciK3gkWAk58Hk4w","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01BKjP7DRdP5KhbMQBZTab9T","tool":"TaskUpdate","input":{"taskId":"5","status":"completed"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01BKjP7DRdP5KhbMQBZTab9T","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01UyVx98Wfbt8XspJ5NbgyN2","tool":"TaskUpdate","input":{"taskId":"6","status":"in_progress"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01UyVx98Wfbt8XspJ5NbgyN2","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01DGwLMij9dVFfo2H39V1yMw","tool":"Bash","input":{"command":"grep -n \"test_source_uses_lf\" -B3 -A20 tests/test_shell_completion.py; grep -n \"def source\\b\" -B3 -A25 src/click/shell_completion.py; grep -rn \"\\.replace(\\|_source\\|linesep\\|\\\\\\\\r\" src/click/shell_completion.py | head -20"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01DGwLMij9dVFfo2H39V1yMw","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01PMDfaiH1ZMrBAfNACatGy9","tool":"Bash","input":{"command":"sed -n 640,700p src/click/shell_completion.py | head -5; grep -n \"def shell_complete\" -A40 src/click/shell_completion.py | grep -n \"echo\"; grep -n \"_default_text_stdout\\|def echo\" src/click/utils.py | head; sed -n 327,350p src/click/utils.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01PMDfaiH1ZMrBAfNACatGy9","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01TfUWBSFNkYGmMCcdhp9YmW","tool":"Bash","input":{"command":"sed -i 's/^ echo(comp.source())$/ # Write bytes so that platform newline translation cannot turn the\\n # script'\"'\"'s LF endings into CRLF, which shells reject.\\n echo(comp.source().encode(\"utf-8\"))/' src/click/shell_completion.py && sed -n 40,55p src/click/shell_completion.py; .venv/bin/python -m pytest -q 2>&1 | tail -1"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01TfUWBSFNkYGmMCcdhp9YmW","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01XDWVwAwxcFvtiqn5os4jEh","tool":"Edit","input":{"replace_all":false,"file_path":"~/.cache/taskcut-eval/workspaces/click-zh--on--sonnet/src/click/shell_completion.py","old_string":" echo(comp.source())","new_string":" # Write bytes so that platform newline translation cannot turn the\n # script's LF endings into CRLF, which shells reject.\n echo(comp.source().encode(\"utf-8\"))"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01XDWVwAwxcFvtiqn5os4jEh","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_013Qum5w2E9dpF2PVU7yFoZf","tool":"Bash","input":{"command":".venv/bin/python -m pytest -q tests/test_shell_completion.py 2>&1 | tail -3; for i in 1 2 3; do .venv/bin/python -m pytest -q 2>&1 | tail -1; done"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_013Qum5w2E9dpF2PVU7yFoZf","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01X2JJrUmdMDTgQuyMC8hUUs","tool":"Bash","input":{"command":"for i in 1 2 3 4; do .venv/bin/python -m pytest -q 2>&1 | grep ^FAILED | sed 's/ - .*//' | sort > $TMPDIR/r$i.txt; done; cat $TMPDIR/r*.txt | sort | uniq -c | awk '$1<4' "}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01X2JJrUmdMDTgQuyMC8hUUs","text":""}]},{"role":"assistant","text":"Those flaky failures are all in the issue 15 tests. They depend on set ordering, so they will pass once issue 15 is fixed. I'm committing issue 6 and moving on to issue 7.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Byyhw2i5Gny9yFfYBYdGuZ","tool":"Bash","input":{"command":"git commit -qam \"Issue 6: emit completion source scripts with LF line endings\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_custom_version_option\" -B3 -A45 tests/test_basic.py; grep -n \"def version_option\" -A110 src/click/decorators.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Byyhw2i5Gny9yFfYBYdGuZ","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01HWT8VqeFc2gCxSr2VaoZ36","tool":"Bash","input":{"command":"sed -n 523,545p src/click/decorators.py; grep -n \"version_option\" src/click/__init__.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01HWT8VqeFc2gCxSr2VaoZ36","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01FXzEHDBavL62rAnvmPp5uz","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/decorators.py'\ns=open(p).read()\ns=s.replace('''def help_option(*param_decls''','''def custom_version_option(\n version_func: t.Callable[[Context], str],\n *param_decls: str,\n **kwargs: t.Any,\n) -> t.Callable[[FC], FC]:\n \"\"\"Add a ``--version`` option with custom behavior. Unlike\n :func:`version_option`, the text to show is produced by a callable.\n\n :param version_func: Called with the current :class:`Context` when the\n option is used. The returned string is printed before exiting.\n :param param_decls: One or more option names. Defaults to the single\n value ``\"--version\"``.\n :param kwargs: Extra arguments are passed to :func:`option`.\n\n .. versionadded:: 8.5.0\n \"\"\"\n\n def callback(ctx: Context, param: Parameter, value: bool) -> None:\n if not value or ctx.resilient_parsing:\n return\n\n echo(version_func(ctx), color=ctx.color)\n ctx.exit()\n\n if not param_decls:\n param_decls = (\"--version\",)\n\n kwargs.setdefault(\"is_flag\", True)\n kwargs.setdefault(\"expose_value\", False)\n kwargs.setdefault(\"is_eager\", True)\n kwargs.setdefault(\"help\", _(\"Show the version and exit.\"))\n kwargs[\"callback\"] = callback\n return option(*param_decls, **kwargs)\n\n\ndef help_option(*param_decls''',1)\nopen(p,'w').write(s)\np='src/click/__init__.py'\ns=open(p).read()\ns=s.replace(\"from .decorators import version_option as version_option\",\"from .decorators import version_option as version_option\",1)\nopen(p,'w').write(s)\nE\nsed -n 15,30p src/click/__init__.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01FXzEHDBavL62rAnvmPp5uz","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01ArsySy1yJo5pLEUk5tk2DL","tool":"Bash","input":{"command":"sed -i '' 's/^from .decorators import confirmation_option as confirmation_option$/&\\nfrom .decorators import custom_version_option as custom_version_option/' src/click/__init__.py && .venv/bin/python -m pytest -q 2>&1 | tail -1; git commit -qam \"Issue 7: add custom_version_option decorator\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01AKj3izYkVdHuXRLeNsfUxK","tool":"TaskUpdate","input":{"taskId":"6","status":"completed"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Cb1hUnEAjB6xNYLkUQsusL","tool":"TaskUpdate","input":{"taskId":"7","status":"completed"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_019mU6tVpkJzMumGU23cKdHc","tool":"TaskUpdate","input":{"taskId":"8","status":"in_progress"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_013Fq9S7BQH318hiwWU8vcN3","tool":"Bash","input":{"command":"grep -n \"def test_hiding_of_unset_sentinel_in_callbacks\" -B3 -A70 tests/test_context.py; grep -n \"UNSET\" src/click/core.py | head -80"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01ArsySy1yJo5pLEUk5tk2DL","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Cb1hUnEAjB6xNYLkUQsusL","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01AKj3izYkVdHuXRLeNsfUxK","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_019mU6tVpkJzMumGU23cKdHc","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_013Fq9S7BQH318hiwWU8vcN3","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01VQkh1zxZrjxwu5Me3k2RuN","tool":"Bash","input":{"command":"sed -n 254,300p tests/test_context.py; sed -n 2572,2640p src/click/core.py; sed -n 2690,2760p src/click/core.py; .venv/bin/python -m pytest -q tests/test_context.py 2>&1 | grep -B3 -A30 \"^E\" | head -60"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01VQkh1zxZrjxwu5Me3k2RuN","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Vtps5nAz899KPX457XWe2r","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' if value is UNSET:\n value = None\n value = self.callback(ctx, self, value)\n\n return value''',''' if value is UNSET:\n value = None\n\n # Same for the other parameters visible through ``ctx.params``:\n # hide the sentinel for the duration of the callback, and put it\n # back on the entries the callback left untouched.\n hidden = [k for k, v in ctx.params.items() if v is UNSET]\n for key in hidden:\n ctx.params[key] = None\n\n try:\n value = self.callback(ctx, self, value)\n finally:\n for key in hidden:\n if key in ctx.params and ctx.params[key] is None:\n ctx.params[key] = UNSET\n\n return value''')\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -1"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Vtps5nAz899KPX457XWe2r","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_013CRQZKCwSLTLaU4f9SxfCv","tool":"Bash","input":{"command":".venv/bin/python -m pytest -q tests/test_context.py 2>&1 | tail -2; git commit -qam \"Issue 8: hide UNSET sentinel from ctx.params inside callbacks\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01ULDqZUyXCcmRUCRPeXjgu6","tool":"TaskUpdate","input":{"taskId":"8","status":"completed"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_011gSajWLJmX5TZeiVLaRamu","tool":"TaskUpdate","input":{"taskId":"9","status":"in_progress"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Kf8K36u3sxguLGkLJnQrkE","tool":"Bash","input":{"command":"grep -n \"def test_progressbar_lands_on_final_position\" -B12 -A40 tests/test_termui.py; grep -n \"class ProgressBar\" -A400 src/click/_termui_impl.py | grep -n \"def \\|pos\\|render_finish\\|eta\\|time\" | head -100"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_013CRQZKCwSLTLaU4f9SxfCv","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_011gSajWLJmX5TZeiVLaRamu","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01ULDqZUyXCcmRUCRPeXjgu6","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Kf8K36u3sxguLGkLJnQrkE","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01S8kaMHeETJy3n5WwPvtctS","tool":"Bash","input":{"command":"sed -n 95,150p src/click/_termui_impl.py; sed -n 240,375p src/click/_termui_impl.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01S8kaMHeETJy3n5WwPvtctS","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_011pq85qPipHFPan5JSHDbu4","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/_termui_impl.py'\ns=open(p).read()\ns=s.replace(''' tb: TracebackType | None,\n ) -> None:\n self.render_finish()\n''',''' tb: TracebackType | None,\n ) -> None:\n # Steps below ``update_min_steps`` may still be pending, land on the\n # final position before closing the bar.\n if self._flush_pending_steps():\n self.render_progress()\n\n self.render_finish()\n''',1)\ns=s.replace(''' def update(self, n_steps: int, current_item: V | None = None) -> None:\n \"\"\"Update the progress bar by advancing''',''' def _flush_pending_steps(self) -> bool:\n \"\"\"Apply steps that have not reached ``update_min_steps`` yet.\n Returns whether there were any.\"\"\"\n if not self._completed_intervals:\n return False\n\n self.make_step(self._completed_intervals)\n self._completed_intervals = 0\n return True\n\n def update(self, n_steps: int, current_item: V | None = None) -> None:\n \"\"\"Update the progress bar by advancing''',1)\ns=s.replace(''' def finish(self) -> None:\n self.eta_known = False''',''' def finish(self) -> None:\n self._flush_pending_steps()\n self.eta_known = False''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -1;.venv/bin/python -m pytest -q tests/test_termui.py -k progress 2>&1 | tail -4"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_011pq85qPipHFPan5JSHDbu4","text":""}]},{"role":"assistant","text":"Issue 9 passes; the only progress test still failing is issue 17's. I'm committing 9 and starting 10.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01CwUygng47jbUp9LCMXDDE3","tool":"Bash","input":{"command":"git commit -qam \"Issue 9: progress bar lands on its final position\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_generate_name\" -B15 -A40 tests/test_command_decorators.py; grep -n \"def test_other_command_invoke_with_defaults\" -B40 -A25 tests/test_commands.py | head -120; grep -n \"_command\\|_group\\|_cmd\" src/click/decorators.py | head"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01DtoQ7uwJXYc2JUzgVS4tWm","tool":"TaskUpdate","input":{"taskId":"9","status":"completed"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Bb1saUSenYT66TB8tv1iBk","tool":"TaskUpdate","input":{"taskId":"10","status":"in_progress"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01CwUygng47jbUp9LCMXDDE3","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01DtoQ7uwJXYc2JUzgVS4tWm","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Bb1saUSenYT66TB8tv1iBk","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_017ir8yvAmN2TGkf646ByaYN","tool":"Bash","input":{"command":"grep -n \"__name__\" -B5 -A8 src/click/decorators.py | sed -n 1,60p; grep -rn \"_command\\b\\|_group\\b\" tests/test_commands.py tests/test_command_decorators.py | head"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_017ir8yvAmN2TGkf646ByaYN","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01NvZuuBkQYWgR9fcTP6S5BN","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/decorators.py'\ns=open(p).read()\ns=s.replace(''' cmd = cls(\n name=name or f.__name__.lower().replace(\"_\", \"-\"),''',''' cmd_name = name\n if not cmd_name:\n cmd_name = f.__name__.lower()\n # Drop a conventional suffix, ``init_data_command`` -> ``init-data``.\n for suffix in (\"_command\", \"_cmd\", \"_group\", \"_grp\"):\n if cmd_name.endswith(suffix) and len(cmd_name) > len(suffix):\n cmd_name = cmd_name[: -len(suffix)]\n break\n cmd_name = cmd_name.replace(\"_\", \"-\")\n\n cmd = cls(\n name=cmd_name,''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -1; grep -n \"versionchanged\\|versionadded\" src/click/decorators.py | sed -n 1,12p; sed -n 130,160p src/click/decorators.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01NvZuuBkQYWgR9fcTP6S5BN","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01NggDf1pD3HtVLdakbczkVU","tool":"Bash","input":{"command":"git commit -qam \"Issue 10: drop conventional suffixes from generated command names\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; sed -n 296,325p tests/test_commands.py; grep -n \"subcommand_metavar\" -B3 -A12 src/click/core.py | head -80"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01HKFh3RoW7hKPFNXkCcU4QJ","tool":"TaskUpdate","input":{"taskId":"10","status":"completed"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_0141EdaQn415qHkbWRH7GdUt","tool":"TaskUpdate","input":{"taskId":"11","status":"in_progress"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01NggDf1pD3HtVLdakbczkVU","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01HKFh3RoW7hKPFNXkCcU4QJ","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_0141EdaQn415qHkbWRH7GdUt","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01DmTyWSDfZunCEoL6MXvYgH","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' if chain:\n subcommand_metavar = \"COMMAND1 [ARGS]... [COMMAND2 [ARGS]...]...\"\n else:\n subcommand_metavar = \"COMMAND [ARGS]...\"\n''',''' # The leading subcommand is optional if the group can be invoked\n # without one.\n if chain:\n first = \"[COMMAND1]\" if invoke_without_command else \"COMMAND1\"\n subcommand_metavar = f\"{first} [ARGS]... [COMMAND2 [ARGS]...]...\"\n else:\n first = \"[COMMAND]\" if invoke_without_command else \"COMMAND\"\n subcommand_metavar = f\"{first} [ARGS]...\"\n''')\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -1; git commit -qam \"Issue 11: mark the subcommand optional in usage when the group allows it\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Q47a9ha1WwcuHMGC5M2MpF","tool":"TaskUpdate","input":{"taskId":"11","status":"completed"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_018JMmhHekApLVvoA8npqUYP","tool":"TaskUpdate","input":{"taskId":"12","status":"in_progress"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_011YrBZFETHw1whnCxw3GdCh","tool":"Bash","input":{"command":"grep -n \"less_detection\\|less_raw_mode\\|def test_tempfile_pager_passes_pager_params\" -B30 -A30 tests/test_termui.py | sed -n 1,260p"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01DmTyWSDfZunCEoL6MXvYgH","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Q47a9ha1WwcuHMGC5M2MpF","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_018JMmhHekApLVvoA8npqUYP","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_011YrBZFETHw1whnCxw3GdCh","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_019PBsBWmo6oyM9HwfrPfPCA","tool":"Bash","input":{"command":"sed -n 838,862p tests/test_termui.py; sed -n 921,960p tests/test_termui.py; grep -n \"_force_tempfile_pager\" -A22 tests/test_termui.py | head -40; sed -n 420,660p src/click/_termui_impl.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_019PBsBWmo6oyM9HwfrPfPCA","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01YBhN2on71iziVMwhSZgBZs","tool":"Bash","input":{"command":"grep -rn \"_tempfilepager\\|_pipepager(\" tests | head; python3 - <<'E'\np='src/click/_termui_impl.py'\ns=open(p).read()\ns=s.replace(''' if color is None and cmd_path.name == \"less\":\n less_flags = f\"{os.environ.get('LESS', '')}{' '.join(cmd_params)}\"\n if not less_flags:\n env[\"LESS\"] = \"-R\"\n color = True\n elif \"r\" in less_flags or \"R\" in less_flags:\n color = True\n''',''' # The stem is matched so that ``less.exe`` counts as ``less``. Windows\n # filesystems are case-insensitive, so the match casefolds there.\n stem = cmd_path.stem.casefold() if WIN else cmd_path.stem\n\n if color is None and stem == \"less\":\n less_env = os.environ.get(\"LESS\", \"\")\n\n if not less_env and not cmd_params:\n env[\"LESS\"] = \"-R\"\n color = True\n elif _less_requests_raw_mode(less_env, cmd_params):\n color = True\n''')\ns=s.replace('''@contextlib.contextmanager\ndef _pipepager(''','''def _less_requests_raw_mode(less_env: str, cmd_params: list[str]) -> bool:\n \"\"\"Whether the ``LESS`` variable or the command line parameters ask\n ``less`` to pass raw control characters through (``-r``, ``-R``,\n ``--raw-control-chars`` or ``--RAW-CONTROL-CHARS``).\n\n The option tokens are parsed, so filenames or other options that merely\n contain the letter ``r`` do not count.\n \"\"\"\n try:\n env_tokens = shlex.split(less_env)\n except ValueError:\n env_tokens = less_env.split()\n\n for token in [*env_tokens, *cmd_params]:\n if token == \"--\":\n # Everything after this is a filename.\n break\n\n if token.startswith(\"--\"):\n if token.lower() == \"--raw-control-chars\":\n return True\n elif token.startswith(\"-\") and (\"r\" in token or \"R\" in token):\n return True\n\n return False\n\n\n@contextlib.contextmanager\ndef _pipepager(''',1)\ns=s.replace('''def _tempfilepager(\n cmd_path: Path, color: bool | None = None\n)''','''def _tempfilepager(\n cmd_path: Path, cmd_params: list[str], color: bool | None = None\n)''')\ns=s.replace(''' platforms. The command is invoked with the temporary file as its only\n argument: any parameters the user set in ``PAGER`` are not passed on.''',''' platforms. The command is invoked with the parameters the user set in\n ``PAGER``, followed by the temporary file.''')\ns=s.replace(\"subprocess.call([str(cmd_path), f.name])\",\"subprocess.call([str(cmd_path), *cmd_params, f.name])\")\ns=s.replace(\"return _tempfilepager(cmd_path, color)\",\"return _tempfilepager(cmd_path, cmd_params, color)\")\nopen(p,'w').write(s)\nE\ngrep -n \"^import shlex\" src/click/_termui_impl.py; .venv/bin/python -m pytest -q 2>&1 | tail -1"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01YBhN2on71iziVMwhSZgBZs","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01HXvhKqVkofSkUtr43txEd3","tool":"Bash","input":{"command":".venv/bin/python -m pytest -q tests/test_termui.py 2>&1 | grep FAILED; git status --short"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01HXvhKqVkofSkUtr43txEd3","text":""}]},{"role":"assistant","text":"Issue 12 is done. Only tests belonging to later issues still fail in test_termui.py. Committing, then on to issue 13.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01WBkzq5EvcRZ5dkhkvJefhK","tool":"Bash","input":{"command":"git commit -qam \"Issue 12: forward PAGER parameters and parse less raw-mode options\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"never_sees_unset\" -B40 -A40 tests/test_arguments.py | head -150; grep -n \"def type_cast_value\" -B3 -A40 src/click/core.py"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01LfW9DAXkZK4udp1xrhLgBm","tool":"TaskUpdate","input":{"taskId":"12","status":"completed"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_011dsUbGBpeMTPShyDN28ec6","tool":"TaskUpdate","input":{"taskId":"13","status":"in_progress"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01WBkzq5EvcRZ5dkhkvJefhK","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_011dsUbGBpeMTPShyDN28ec6","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01LfW9DAXkZK4udp1xrhLgBm","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_015Wa14qxG2ySfR8isyTzHM9","tool":"Bash","input":{"command":"grep -n \"option_custom_class_can_override_type_cast_value_and_never\" -B30 -A30 tests/test_options.py; .venv/bin/python -m pytest -q tests/test_arguments.py tests/test_options.py -k never_sees 2>&1 | grep -E \"^E|passed|failed\" | head"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_015Wa14qxG2ySfR8isyTzHM9","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Pvd5o7gq8tk26XodPLKRef","tool":"Bash","input":{"command":"grep -rn \"type_cast_value\" src/ | grep -v \"^src/click/core.py:.*def \"; grep -n \"def process_value\" src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Pvd5o7gq8tk26XodPLKRef","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_016B41XYx7vaWnZbaYfGggky","tool":"Bash","input":{"command":"sed -n 900,925p src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_016B41XYx7vaWnZbaYfGggky","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01LM8MRhReB7qiBNzeyxufFp","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' value = self.type_cast_value(ctx, value)\n\n if self.required and self.value_is_missing(value):''',''' # User overrides of ``type_cast_value`` must never see the internal\n # UNSET sentinel, hand them ``None`` and restore it afterwards.\n was_unset = value is UNSET\n value = self.type_cast_value(ctx, None if was_unset else value)\n if was_unset and value is None:\n value = UNSET\n\n if self.required and self.value_is_missing(value):''',1)\ns=s.replace(''' def type_cast_value(self, ctx: Context, value: t.Any) -> t.Any:\n if self.is_flag and not self.required:\n if value is UNSET:\n if self.is_bool_flag:\n # If the flag is a boolean flag, we return False if it is not set.\n value = False\n return super().type_cast_value(ctx, value)\n''',''' def process_value(self, ctx: Context, value: t.Any) -> t.Any:\n if self.is_flag and not self.required:\n if value is UNSET:\n if self.is_bool_flag:\n # If the flag is a boolean flag, we return False if it is not set.\n value = False\n return super().process_value(ctx, value)\n''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -1"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01LM8MRhReB7qiBNzeyxufFp","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Y3RR6XdHbsk3bbEjvQPiSN","tool":"Bash","input":{"command":".venv/bin/python -m pytest -q tests/test_arguments.py tests/test_options.py -k never_sees 2>&1 | tail -1; git commit -qam \"Issue 13: never pass UNSET to type_cast_value overrides\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Mc7kGmDqf7Mpua4WRdnwex","tool":"TaskUpdate","input":{"taskId":"13","status":"completed"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01WUxpa9H4Hgv1Kk9eYuAqTU","tool":"TaskUpdate","input":{"taskId":"14","status":"in_progress"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01RY5WHNXyJrUxe4FoBcDwnN","tool":"Bash","input":{"command":"sed -n 960,975p tests/test_termui.py; grep -n \"def echo_via_pager\" -A60 src/click/termui.py | tail -30"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Y3RR6XdHbsk3bbEjvQPiSN","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Mc7kGmDqf7Mpua4WRdnwex","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01WUxpa9H4Hgv1Kk9eYuAqTU","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01RY5WHNXyJrUxe4FoBcDwnN","text":""}]},{"role":"assistant","text":"Issue 13 is committed. Now issue 14: I'm reading `echo_via_pager`.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_018LN5GjwPxMEuAyRghbjfaf","tool":"Bash","input":{"command":"grep -n \"^def echo_via_pager\" -A50 src/click/termui.py | grep -v '^\\s*$' | sed -n 1,80p"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_018LN5GjwPxMEuAyRghbjfaf","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_016UxS3GdmgAyo4QvjgT4MtS","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/termui.py'\ns=open(p).read()\ns=s.replace(''' pager.write(text)\n''',''' pager.write(text)\n # Flush every chunk so that output streams to the pager as it is\n # produced, instead of waiting for the buffer to fill.\n pager.flush()\n''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -1"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_016UxS3GdmgAyo4QvjgT4MtS","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Pt78gy442T46Hw2JBzLxMu","tool":"Bash","input":{"command":"git commit -qam \"Issue 14: flush each chunk written by echo_via_pager\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_get_help_option_names\" -B30 -A25 tests/test_commands.py"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01SXPoBWZ1cYY1xkiGekgtoa","tool":"TaskUpdate","input":{"taskId":"14","status":"completed"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01RVhA8Egp9gegN5w5nCGRMY","tool":"TaskUpdate","input":{"taskId":"15","status":"in_progress"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Pt78gy442T46Hw2JBzLxMu","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01RVhA8Egp9gegN5w5nCGRMY","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01SXPoBWZ1cYY1xkiGekgtoa","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_0136f2KDmGjxwHFhpR5CFPTA","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' all_names = set(ctx.help_option_names)\n for param in self.params:\n all_names.difference_update(param.opts)\n all_names.difference_update(param.secondary_opts)\n return list(all_names)''',''' # A dict keeps the declaration order while dropping duplicates.\n all_names = dict.fromkeys(ctx.help_option_names)\n for param in self.params:\n for name in (*param.opts, *param.secondary_opts):\n all_names.pop(name, None)\n return list(all_names)''',1)\nopen(p,'w').write(s)\nE\nfor i in 1 2 3; do .venv/bin/python -m pytest -q 2>&1 | tail -1; done"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_0136f2KDmGjxwHFhpR5CFPTA","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Ggeo44iT9GvuABzhkHaTEU","tool":"Bash","input":{"command":"git commit -qam \"Issue 15: preserve declaration order of help option names\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_isolated_filesystem_deprecated\" -B5 -A25 tests/test_deprecations.py; grep -n \"def isolated_filesystem\" -B3 -A40 src/click/testing.py; grep -rn \"isolated_filesystem\" src docs --include=* -l"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01TT7SAF2caWM5yJNGJAuT2M","tool":"TaskUpdate","input":{"taskId":"15","status":"completed"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01F9ZaFwepkHgwWPmjFugg14","tool":"TaskUpdate","input":{"taskId":"16","status":"in_progress"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Ggeo44iT9GvuABzhkHaTEU","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01F9ZaFwepkHgwWPmjFugg14","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01TT7SAF2caWM5yJNGJAuT2M","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_015mRWyEBs5Bp4nUTMM2r8bv","tool":"Bash","input":{"command":"grep -rn \"isolated_filesystem\" src docs tests CHANGES.rst | grep -v \"\\.pyc\" | head -30; grep -n \"filterwarnings\" -A6 pyproject.toml; grep -n \"DeprecationWarning\" src/click/core.py | head -3"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_015mRWyEBs5Bp4nUTMM2r8bv","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01JueZdMp9Qkpx6uQ1CX7kJL","tool":"Bash","input":{"command":"sed -n 528,545p src/click/core.py; sed -n 180,195p docs/testing.md; grep -n \"^import\\|^from\" src/click/testing.py | head -30"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01JueZdMp9Qkpx6uQ1CX7kJL","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_016ihLcejXWn2uCvExt92RsG","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/testing.py'\ns=open(p).read()\ns=s.replace(''' interfering with each other.\n\n :param temp_dir: Create the temporary directory under this\n directory. If given, the created directory is not removed\n when exiting.\n\n .. versionchanged:: 8.0\n Added the ``temp_dir`` parameter.\n \"\"\"\n cwd = os.getcwd()''',''' interfering with each other.\n\n .. deprecated:: 8.5.0\n Will be removed in Click 9.0. It predates Python 3 and modern\n pytest. It relies on :func:`os.chdir`, which changes\n process-global state and is not thread-safe, so it cannot be used\n to run tests in parallel threads. Use :class:`tempfile.TemporaryDirectory`\n or pytest's ``tmp_path`` fixture, and pass absolute paths.\n\n :param temp_dir: Create the temporary directory under this\n directory. If given, the created directory is not removed\n when exiting.\n\n .. versionchanged:: 8.0\n Added the ``temp_dir`` parameter.\n \"\"\"\n import warnings\n\n warnings.warn(\n \"'isolated_filesystem' is deprecated and will be removed in Click\"\n \" 9.0. Use a temporary directory (`tempfile.TemporaryDirectory` or\"\n \" pytest's `tmp_path`) with absolute paths instead.\",\n DeprecationWarning,\n stacklevel=3,\n )\n cwd = os.getcwd()''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -1"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_016ihLcejXWn2uCvExt92RsG","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01E5PTND1CfGK2jf9ztYiPrD","tool":"Bash","input":{"command":"git commit -qam \"Issue 16: deprecate CliRunner.isolated_filesystem\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_progressbar_item_show_func\" -B3 -A30 tests/test_termui.py; grep -n \"item_show_func\\|def format_progress_line\" -A3 src/click/_termui_impl.py | head -50; sed -n 215,245p src/click/_termui_impl.py"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_015MiZmPRbcYMoE8cAFSjP92","tool":"TaskUpdate","input":{"taskId":"16","status":"completed"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01NH2hGoJD3dkrZiccjpMyNy","tool":"TaskUpdate","input":{"taskId":"17","status":"in_progress"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01E5PTND1CfGK2jf9ztYiPrD","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_015MiZmPRbcYMoE8cAFSjP92","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01NH2hGoJD3dkrZiccjpMyNy","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01PvfHG1datMdvByuaGcVkv3","tool":"Bash","input":{"command":".venv/bin/python - <<'E'\nimport click, click._termui_impl as m\nfrom click.testing import CliRunner\nm.isatty=lambda _:True\n@click.command()\ndef cli():\n with click.progressbar(range(3), item_show_func=lambda x: str(x)) as progress:\n for item in progress:\n click.echo(f\" item {item}\")\nprint(repr(CliRunner().invoke(cli).output))\nE"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01PvfHG1datMdvByuaGcVkv3","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_0182toG3mHQ3wrfMmLDNwqgd","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/_termui_impl.py'\ns=open(p).read()\ns=s.replace(''' self.current_item = rv\n yield rv''',''' self.current_item = rv\n # Show the item being processed while its block runs.\n if self.item_show_func is not None:\n self.render_progress()\n yield rv''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -1"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_0182toG3mHQ3wrfMmLDNwqgd","text":""}]},{"role":"assistant","text":"Issue 17 passes now. I'm committing it and moving to issue 18.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01PmkKdF7pomJTprsdV4FB32","tool":"Bash","input":{"command":"git commit -qam \"Issue 17: show the current item in the progress bar while it is processed\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_deprecated_empty_help_no_leading_space\" -B22 -A22 tests/test_commands.py tests/test_options.py; grep -n \"DEPRECATED\" -B8 -A8 src/click/core.py | sed -n 1,120p"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Do5GWuegVDZvJGnzMKTmmg","tool":"TaskUpdate","input":{"taskId":"17","status":"completed"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_013YU2Qbw8BuG5cUd5aE3FYE","tool":"TaskUpdate","input":{"taskId":"18","status":"in_progress"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01PmkKdF7pomJTprsdV4FB32","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Do5GWuegVDZvJGnzMKTmmg","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_013YU2Qbw8BuG5cUd5aE3FYE","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_019vpL3umRvaEJi7wCcNSryB","tool":"Bash","input":{"command":"grep -n \"_format_deprecated_suffix\\|DEPRECATED\" src/click/*.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_019vpL3umRvaEJi7wCcNSryB","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01AUku4pap685rtQyoZ5eCBV","tool":"Bash","input":{"command":"grep -n \"eprecated\" src/click/core.py | sed -n 1,60p"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01AUku4pap685rtQyoZ5eCBV","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01DSAcSjBMr1YKFoHE5AEiu6","tool":"Bash","input":{"command":"sed -n 1240,1252p src/click/core.py; sed -n 1274,1284p src/click/core.py; sed -n 2962,2972p src/click/core.py; sed -n 3672,3690p src/click/core.py; sed -n 3700,3712p src/click/core.py; grep -n \"def get_help_record\" -A30 src/click/core.py | grep -n \"help\\b\\|extra\" | head -20"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01DSAcSjBMr1YKFoHE5AEiu6","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_013D7DgeDqNLs9KY9deursAK","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\nold=''' text = f\"{_(text)} {_format_deprecated_label(self.deprecated)}\"'''\nnew=''' label = _format_deprecated_label(self.deprecated)\n text = f\"{_(text)} {label}\" if text else label'''\nassert s.count(old)==2\ns=s.replace(old,new)\ns=s.replace(''' help = f\"{help} {label}\" if help is not None else label''',''' help = f\"{help} {label}\" if help else label''')\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -1"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_013D7DgeDqNLs9KY9deursAK","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01LfBmB7vpXUgC9ubNhu6LTt","tool":"Bash","input":{"command":"git commit -qam \"Issue 18: no stray leading space before the deprecation label\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_light_imports\" -B5 -A50 tests/test_imports.py; grep -rn \"typing_extensions\" src pyproject.toml | grep -v pyc"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01HLMczm3B9994Qgi7zCPjcg","tool":"TaskUpdate","input":{"taskId":"18","status":"completed"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01PwAJToPiAaeEE2RAhYi96v","tool":"TaskUpdate","input":{"taskId":"19","status":"in_progress"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01LfBmB7vpXUgC9ubNhu6LTt","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01PwAJToPiAaeEE2RAhYi96v","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01HLMczm3B9994Qgi7zCPjcg","text":""}]},{"role":"assistant","text":"The issue 18 commit is in and I've started on issue 19. First step is finding what the import test actually complains about.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01815mzzeEYqga7JyLQ68htS","tool":"Bash","input":{"command":"sed -n 1,66p tests/test_imports.py; .venv/bin/python -m pytest -q tests/test_imports.py 2>&1 | grep -E \"^E\" | head; .venv/bin/python -X importtime -c \"import click\" 2>&1 | grep -i \"typing_ext\\|builtins\"; sed -n 15,40p src/click/types.py; sed -n 28,42p src/click/termui.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01815mzzeEYqga7JyLQ68htS","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01CLZmVKqxVHNZR25oYz9GwF","tool":"Bash","input":{"command":"grep -n \"builtins\" src/click/*.py; sed -n 52,70p src/click/shell_completion.py; grep -n \"_InputT_contra\\|_ValueT_co\\b\" src/click/*.py | head -30; grep -n \"TypeVar\\b\" src/click/shell_completion.py src/click/types.py; grep -n \"requires-python\" pyproject.toml"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01CLZmVKqxVHNZR25oYz9GwF","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01TWX2a6u9uwRs4NgZJgJYjr","tool":"Bash","input":{"command":"grep -n \"ParamType\\[\" src/click/*.py | grep -v \"^\\S*:\\s*#\" | head -20; ls ~/.pyenv/versions 2>/dev/null; which -a python3.10 python3.11 python3.12 uv 2>/dev/null; sed -n 140,152p src/click/termui.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01TWX2a6u9uwRs4NgZJgJYjr","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01MPopyWExPSd96To7BAiqco","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/types.py'\ns=open(p).read()\ns=s.replace('''# TypeVar(default=...) support.\nif sys.version_info >= (3, 13):\n from typing import TypeVar\nelse:\n from typing_extensions import TypeVar\n\n''','',1)\ns=s.replace('''_InputT_contra = TypeVar(\"_InputT_contra\", contravariant=True, default=t.Any)\n''','''\n# ``TypeVar(default=...)`` is only available at runtime from Python 3.13. Type\n# checkers get it from ``typing_extensions``, which is never imported at\n# runtime.\nif t.TYPE_CHECKING:\n from typing_extensions import TypeVar\n\n _InputT_contra = TypeVar(\"_InputT_contra\", contravariant=True, default=t.Any)\nelif sys.version_info >= (3, 13):\n _InputT_contra = t.TypeVar(\"_InputT_contra\", contravariant=True, default=t.Any)\nelse:\n _InputT_contra = t.TypeVar(\"_InputT_contra\", contravariant=True)\n''',1)\ns=s.replace('''class ParamType(t.Generic[_ValueT_co, _InputT_contra], abc.ABC):''','''class ParamType(t.Generic[_ValueT_co, _InputT_contra], abc.ABC):''')\nopen(p,'w').write(s)\nE\nsed -n 40,60p src/click/types.py; grep -n \"^class ParamType\" -A60 src/click/types.py | grep -n \" name: \\| is_composite\\| envvar_list\" "}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01MPopyWExPSd96To7BAiqco","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01VpwxgNotZUVWRtvdySxjRr","tool":"bash","input":{"command":"cd ~/.cache/taskcut-eval/workspaces/click-zh--on--sonnet && sed -n 93,100p src/click/types.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01VpwxgNotZUVWRtvdySxjRr","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01GYehqTj8poQntM12sxgeZT","tool":"Bash","input":{"command":"sed -n 93,100p src/click/types.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01GYehqTj8poQntM12sxgeZT","text":""}]},{"role":"assistant","text":"I'm adding a `__class_getitem__` shim for Python below 3.13 (plain TypeVars have no defaults there) and swapping the `builtins` import in termui.py.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01QXpbKQGh2veWbg6p9gzpMc","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/types.py'\ns=open(p).read()\ns=s.replace(''' envvar_list_splitter: t.ClassVar[str | None] = None\n\n def to_info_dict(self) -> ParamTypeInfoDict:''',''' envvar_list_splitter: t.ClassVar[str | None] = None\n\n if sys.version_info < (3, 13):\n\n def __class_getitem__(cls, params: t.Any) -> t.Any:\n # Emulate the ``default=t.Any`` of the input type variable, which\n # a plain ``typing.TypeVar`` does not support before Python 3.13.\n if not isinstance(params, tuple):\n params = (params, t.Any)\n\n return super().__class_getitem__(params) # type: ignore[misc]\n\n def to_info_dict(self) -> ParamTypeInfoDict:''',1)\nopen(p,'w').write(s)\np='src/click/termui.py'\ns=open(p).read()\ns=s.replace(\"import builtins\\n\",\"\",1)\ns=s.replace(\" return builtins.type(default) is builtins.type(type)\",\" return _type(default) is _type(type)\")\ns=s.replace(\"\\ndef _is_expected_type(\",\"\\n# ``type`` is shadowed by a parameter name below.\\n_type = type\\n\\n\\ndef _is_expected_type(\",1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -1\n(uv run --python 3.12 --no-project --with pytest --with typing_extensions python - <<'E'\nimport sys; sys.path.insert(0,'src')\nimport click\nfrom click.types import ParamType\nprint(sys.version, ParamType[int], click.Choice([\"a\"]), 'typing_extensions' in sys.modules)\nE\n) 2>&1 | tail -5"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01QXpbKQGh2veWbg6p9gzpMc","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Fi3c4EAqRGWy45SFvsqoJT","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/types.py'\ns=open(p).read()\ns=s.replace(''' if not isinstance(params, tuple):\n params = (params, t.Any)\n''',''' if not isinstance(params, tuple) and cls.__parameters__ == (\n _ValueT_co,\n _InputT_contra,\n ):\n params = (params, t.Any)\n''',1)\nopen(p,'w').write(s)\nE\nfor v in 3.10 3.12; do uv run --python $v --no-project --with pytest --with typing_extensions python - <<'E' 2>&1 | tail -3\nimport sys; sys.path.insert(0,'src')\nimport click\nfrom click.types import ParamType\nprint(sys.version_info[:2], ParamType[int], click.Choice([\"a\"]), click.INT)\nE\ndone\nuv run --python 3.12 --no-project --with pytest python -m pytest -q -p no:cacheprovider 2>&1 | tail -3"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Fi3c4EAqRGWy45SFvsqoJT","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_017yeVYYcVYuQ3mcLEbrCz5P","tool":"Bash","input":{"command":"uv run --python 3.10 --no-project python - <<'E' 2>&1 | tail -3\nimport sys; sys.path.insert(0,'src')\nimport click\nprint(\"typing_extensions\" in sys.modules, click.__name__)\nE\nsed -n 66,76p src/click/_winconsole.py; .venv/bin/python -m pytest -q 2>&1 | tail -1; git status --short"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_017yeVYYcVYuQ3mcLEbrCz5P","text":""}]},{"role":"assistant","text":"Click now imports cleanly on Python 3.10 without `typing_extensions` installed, and the suite has 7 failures left. Committing issue 19, then issue 20.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01XUurDDHbp7Rxk8WVzgkC35","tool":"Bash","input":{"command":"git commit -qam \"Issue 19: stop importing typing_extensions and builtins at runtime\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def write_usage\" -A40 src/click/formatting.py; grep -n \"write_usage\" -B3 -A30 tests/test_formatting.py | sed -n 1,140p"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_0149Z3R7LR2bUytZzngjA5yt","tool":"TaskUpdate","input":{"taskId":"19","status":"completed"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01DmnCjpS3aeA4mgNrasPKmw","tool":"TaskUpdate","input":{"taskId":"20","status":"in_progress"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01XUurDDHbp7Rxk8WVzgkC35","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01DmnCjpS3aeA4mgNrasPKmw","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_0149Z3R7LR2bUytZzngjA5yt","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Brh3TMj164qbZ3yeUG1D3S","tool":"Bash","input":{"command":"sed -n 544,577p tests/test_formatting.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Brh3TMj164qbZ3yeUG1D3S","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01NgaBqWX7HbaxQWknG9SzcF","tool":"Bash","input":{"command":"python3 - <<'E'\np='src/click/formatting.py'\ns=open(p).read()\ns=s.replace(''' usage_prefix = f\"{prefix:>{self.current_indent}}{prog} \"\n text_width''',''' if not args:\n # Nothing to wrap, keep just the prefix and program, without the\n # separator that would trail them.\n self.write(f\"{prefix:>{self.current_indent}}{prog}\\\\n\")\n return\n\n usage_prefix = f\"{prefix:>{self.current_indent}}{prog} \"\n text_width''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -3"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01NgaBqWX7HbaxQWknG9SzcF","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01FYy5Hm1DEgZMmzPAnbFjfE","tool":"Bash","input":{"command":"git commit -qam \"Issue 20: write_usage without args emits no spurious separator\n\nCo-Authored-By: Claude Sonnet 5 \" && git log --oneline | head -22; git status --short; git diff 4ad54a7 --stat -- tests | tail -1"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01BwWi7FZWe1h5VfXEKmcrFH","tool":"TaskUpdate","input":{"taskId":"20","status":"completed"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01FYy5Hm1DEgZMmzPAnbFjfE","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01BwWi7FZWe1h5VfXEKmcrFH","text":""}]},{"role":"assistant","text":"20 个问题已按 ISSUES.md 的顺序做完，每个单独提交，提交信息标明\"Issue N\"。整个测试集现在是 2058 通过、25 跳过、1 xfailed，0 失败，全程没有改动、跳过或删除任何测试。\n\n提交都在新建的 `work` 分支上，起点是 `4ad54a7`。\n\n各问题的处理：\n\n1. `echo` 在 `nl=True` 时保持 bytes 类型，不再把空 bytes 变成 str。\n2. `Command.main` 中，第二次 Ctrl-C 不再改变退出码。提示信息尽力输出，退出码始终生效。\n3. 可选的 `Choice`/`DateTime` 参数，如果元数据已带方括号，就不再重复加。\n4. `click.edit(filename=...)` 支持 `os.PathLike`，运行时和类型标注都改了。\n5. 帮助选项的值改存到保留名 `_click_default_help`，不再与用户的 `help` 参数冲突。占用这个保留名、或参数名与其他参数重名时会发出警告。\n6. 补全脚本改用 bytes 输出，保证是 LF 换行。\n7. 新增并导出 `click.custom_version_option`。\n8. 选项回调执行期间，`ctx.params` 里的 UNSET 显示为 `None`，回调没改的条目事后还原。\n9. 进度条收尾时会把不足 `update_min_steps` 的剩余步数结算掉。\n10. 自动生成的命令名去掉 `_command`、`_cmd`、`_group`、`_grp` 后缀。\n11. 允许无子命令调用的分组，用法行里子命令带方括号。\n12. `PAGER` 的参数会传给 tempfile 分页器，`less` 按 stem 识别（Windows 上不区分大小写），raw 模式改为解析选项 token 判断。\n13. 用户重写的 `type_cast_value` 收到的是 `None`，不会拿到 UNSET。\n14. `echo_via_pager` 每写一块就 flush，输出会流式到达分页器。\n15. `get_help_option_names` 保持声明顺序（以前用 `set`，顺序不稳定）。\n16. `CliRunner.isolated_filesystem` 会发出 `DeprecationWarning`，并在 docstring 里写明局限。\n17. `item_show_func` 在处理某个条目期间就显示该条目。\n18. 已弃用命令或选项的 help 为空时，弃用标签前不再有多余空格。\n19. 去掉运行时对 `typing_extensions` 和 `builtins` 的导入。我另外在 Python 3.10 和 3.12 上验证了能正常导入，3.10 未安装 `typing_extensions` 时也一样。\n20. `write_usage` 没有参数时，不再输出多余的分隔符和空行。\n\n补充说明：中间有一段时间全量失败数在 65 到 67 之间浮动，原因是问题 15 的测试依赖 `set` 的顺序，修完之后就稳定了。\n\nALL ISSUES DONE","toolUses":[]}]],"steps":[{"n":0,"segment":0,"pos":1,"turn":0,"index":0,"stop_reason":"tool_use","context":36910,"step":{"text":"","calls":[{"name":"Read","input":{"file_path":"~/.cache/taskcut-eval/workspaces/click-zh--on--sonnet/ISSUES.md"}},{"name":"ToolSearch","input":{"query":"select:TaskCreate,TaskUpdate","max_results":5}}]}},{"n":1,"segment":0,"pos":5,"turn":0,"index":1,"stop_reason":"tool_use","context":42772,"step":{"text":"","calls":[{"name":"TaskCreate","input":{"subject":"Issue 1: echo empty bytes with custom file","description":"tests/test_utils/test_echo.py::test_echo_custom_file"}},{"name":"TaskCreate","input":{"subject":"Issue 2: KeyboardInterrupt race in prompt","description":"tests/test_abort_interrupt.py (3 tests)"}},{"name":"TaskCreate","input":{"subject":"Issue 3: doubled brackets optional Choice/DateTime argument","description":"test_basic.py metavar tests"}},{"name":"TaskCreate","input":{"subject":"Issue 4: pathlib.Path in click.edit","description":"test_termui.py::test_edit_pathlib"}},{"name":"TaskCreate","input":{"subject":"Issue 5: help param name conflict resolution","description":"5 tests in test_basic/test_info_dict/test_options"}},{"name":"TaskCreate","input":{"subject":"Issue 6: LF line endings in completion scripts","description":"test_shell_completion.py::test_source_uses_lf_line_endings"}},{"name":"TaskCreate","input":{"subject":"Issue 7: custom_version_option decorator","description":"test_basic.py custom_version_option tests"}},{"name":"TaskCreate","input":{"subject":"Issue 8: hide UNSET in option callbacks","description":"test_context.py::test_hiding_of_unset_sentinel_in_callbacks"}},{"name":"TaskCreate","input":{"subject":"Issue 9: progress bar final position","description":"test_termui.py::test_progressbar_lands_on_final_position"}},{"name":"TaskCreate","input":{"subject":"Issue 10: drop _command/_group suffix from generated names","description":"test_command_decorators/test_commands tests"}},{"name":"TaskCreate","input":{"subject":"Issue 11: optional subcommand metavar","description":"test_commands.py::test_subcommand_metavar_marks_optional"}},{"name":"TaskCreate","input":{"subject":"Issue 12: PAGER args and less detection","description":"4 tests in test_termui.py"}},{"name":"TaskCreate","input":{"subject":"Issue 13: type_cast_value never sees UNSET","description":"test_arguments/test_options tests"}},{"name":"TaskCreate","input":{"subject":"Issue 14: echo_via_pager streaming","description":"test_termui.py::test_echo_via_pager_streams_each_write"}},{"name":"TaskCreate","input":{"subject":"Issue 15: get_help_option_names order","description":"test_commands.py::test_get_help_option_names"}},{"name":"TaskCreate","input":{"subject":"Issue 16: deprecate isolated_filesystem","description":"test_deprecations.py::test_isolated_filesystem_deprecated"}},{"name":"TaskCreate","input":{"subject":"Issue 17: progressbar item_show_func","description":"test_termui.py::test_progressbar_item_show_func"}},{"name":"TaskCreate","input":{"subject":"Issue 18: deprecated empty help leading space","description":"test_commands/test_options tests"}},{"name":"TaskCreate","input":{"subject":"Issue 19: no runtime typing_extensions import","description":"test_imports.py::test_light_imports"}},{"name":"TaskCreate","input":{"subject":"Issue 20: write_usage with no args","description":"3 tests in test_formatting.py"}}]}},{"n":2,"segment":0,"pos":45,"turn":0,"index":2,"stop_reason":"tool_use","context":45946,"step":{"text":"Issue 1.","calls":[{"name":"TaskUpdate","input":{"taskId":"1","status":"in_progress"}},{"name":"Bash","input":{"command":"git status --short | head; git branch -a | head; .venv/bin/python -m pytest -q 2>&1 | tail -60"}}]}},{"n":3,"segment":0,"pos":50,"turn":0,"index":3,"stop_reason":"tool_use","context":49377,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"git checkout -q -b work 2>&1; grep -n \"def echo\" -A75 src/click/utils.py | sed -n 1,110p; grep -n \"test_echo_custom_file\" -B3 -A25 tests/test_utils/test_echo.py"}}]}},{"n":4,"segment":0,"pos":52,"turn":0,"index":4,"stop_reason":"tool_use","context":51036,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/utils.py'\ns=open(p).read()\ns=s.replace(''' out = out or \"\"\n if isinstance(out, str):\n out += \"\\\\n\"\n else:\n out += b\"\\\\n\"\n''',''' if out is None:\n out = \"\"\n if isinstance(out, str):\n out += \"\\\\n\"\n else:\n out += b\"\\\\n\"\n''')\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | grep -E \"^FAILED\" | sed 's/ - .*//' | sort > $TMPDIR/base.txt 2>/dev/null || true\n.venv/bin/python -m pytest -q tests/test_utils/test_echo.py 2>&1 | tail -3"}}]}},{"n":5,"segment":0,"pos":54,"turn":0,"index":5,"stop_reason":"tool_use","context":51482,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest -q 2>&1 | tail -1; git commit -qam \"Issue 1: keep bytes type when echoing empty bytes with nl\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok"}},{"name":"Bash","input":{"command":"cat tests/test_abort_interrupt.py; grep -n \"KeyboardInterrupt\\|Abort\\|def main\" src/click/core.py | head -40"}}]}},{"n":6,"segment":0,"pos":58,"turn":0,"index":6,"stop_reason":"tool_use","context":54237,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 1485,1560p src/click/core.py"}}]}},{"n":7,"segment":0,"pos":60,"turn":0,"index":7,"stop_reason":"tool_use","context":55402,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' except (EOFError, KeyboardInterrupt) as e:\n echo(file=sys.stderr)\n raise Abort() from e\n except ClickException as e:\n if not standalone_mode:\n raise\n e.show()\n sys.exit(e.exit_code)\n''',''' except (EOFError, KeyboardInterrupt) as e:\n _best_effort(echo, file=sys.stderr)\n if standalone_mode:\n # Skip constructing Abort, a late interrupt must not\n # replace the exit code.\n _best_effort(echo, _(\"Aborted!\"), file=sys.stderr)\n _exit(1)\n raise Abort() from e\n except ClickException as e:\n if not standalone_mode:\n raise\n _best_effort(e.show)\n _exit(e.exit_code)\n''')\ns=s.replace(''' except Exit as e:\n if standalone_mode:\n sys.exit(e.exit_code)\n''',''' except Exit as e:\n if standalone_mode:\n _exit(e.exit_code)\n''')\ns=s.replace(''' echo(_(\"Aborted!\"), file=sys.stderr)\n sys.exit(1)\n\n def _main_shell''',''' _best_effort(echo, _(\"Aborted!\"), file=sys.stderr)\n _exit(1)\n\n def _main_shell''')\ns=s.replace('''class Context:''','''def _best_effort(func: t.Callable[..., t.Any], *args: t.Any, **kwargs: t.Any) -> None:\n \"\"\"Call ``func``, ignoring a late ``KeyboardInterrupt``.\"\"\"\n try:\n func(*args, **kwargs)\n except KeyboardInterrupt:\n pass\n\n\ndef _exit(code: t.Any) -> t.NoReturn:\n \"\"\"Exit with ``code``, even if interrupted while exiting.\"\"\"\n try:\n sys.exit(code)\n except KeyboardInterrupt:\n sys.exit(code)\n\n\nclass Context:''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q tests/test_abort_interrupt.py 2>&1 | tail -8; .venv/bin/python -m pytest -q 2>&1 | tail -1"}}]}},{"n":8,"segment":0,"pos":62,"turn":0,"index":8,"stop_reason":"tool_use","context":57143,"step":{"text":"Issue 1 is committed, and issue 2 now passes (86 → 81 failures). I'm committing issue 2 and moving on to issue 3.","calls":[{"name":"Bash","input":{"command":"git commit -qam \"Issue 2: make Command.main robust to late KeyboardInterrupt\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok\ngrep -n \"optional_metavar\" -B3 -A20 tests/test_basic.py | head -60; grep -n \"def make_metavar\" -B3 -A25 src/click/core.py src/click/types.py | head -120"}}]}},{"n":9,"segment":0,"pos":65,"turn":0,"index":9,"stop_reason":"tool_use","context":59555,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 640,650p tests/test_basic.py; sed -n 668,676p tests/test_basic.py; grep -n \"def get_metavar\" -A22 src/click/types.py | grep -n \"\\[\\|def\\|class\" "}}]}},{"n":10,"segment":0,"pos":67,"turn":0,"index":10,"stop_reason":"tool_use","context":61160,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' if not self.required:\n var = f\"[{var}]\"\n if self.nargs != 1:\n var += \"...\"\n return var''',''' if not self.required and not (var.startswith(\"[\") and var.endswith(\"]\")):\n var = f\"[{var}]\"\n if self.nargs != 1:\n var += \"...\"\n return var''')\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q tests/test_basic.py 2>&1 | tail -8"}}]}},{"n":11,"segment":0,"pos":69,"turn":0,"index":11,"stop_reason":"tool_use","context":61895,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest -q 2>&1 | tail -1; git commit -qam \"Issue 3: avoid doubled brackets in optional Choice/DateTime argument metavar\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok\ngrep -n \"def edit\" -A45 src/click/termui.py | grep -n \"filename\" ; grep -n \"filename\" src/click/_termui_impl.py | head -40; grep -n \"def test_edit_pathlib\" -B5 -A30 tests/test_termui.py"}}]}},{"n":12,"segment":0,"pos":71,"turn":0,"index":12,"stop_reason":"tool_use","context":63146,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 820,905p src/click/termui.py; sed -n 655,690p src/click/_termui_impl.py"}}]}},{"n":13,"segment":0,"pos":73,"turn":0,"index":13,"stop_reason":"tool_use","context":64888,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/termui.py'\ns=open(p).read()\ns=s.replace(\"filename: str | cabc.Iterable[str] | None = None,\",\"filename: str | os.PathLike[str] | cabc.Iterable[str | os.PathLike[str]] | None = None,\")\ns=s.replace(''' if isinstance(filename, str):\n filename = (filename,)\n\n ed.edit_files(filenames=filename)''',''' if isinstance(filename, (str, os.PathLike)):\n filename = (filename,)\n\n ed.edit_files(filenames=[os.fspath(f) for f in filename])''')\ns=s.replace(''' .. versionchanged:: 8.2.0\n ``filename`` now accepts any ``Iterable[str]``''',''' .. versionchanged:: 8.5.0\n ``filename`` accepts :class:`os.PathLike` values.\n\n .. versionchanged:: 8.2.0\n ``filename`` now accepts any ``Iterable[str]``''',1)\nopen(p,'w').write(s)\nE\ngrep -n \"^import os\" src/click/termui.py; ruff format src/click/termui.py 2>/dev/null || .venv/bin/ruff format src/click/termui.py 2>&1|tail -1\n.venv/bin/python -m pytest -q tests/test_termui.py -k edit 2>&1 | tail -3; .venv/bin/python -m pytest -q 2>&1 | tail -1"}}]}},{"n":14,"segment":0,"pos":75,"turn":0,"index":14,"stop_reason":"tool_use","context":65798,"step":{"text":"Issue 4 needs `import os` in termui.py. I'll add it and format the long signature line by hand.","calls":[{"name":"Bash","input":{"command":"sed -n 1,25p src/click/termui.py"}}]}},{"n":15,"segment":0,"pos":78,"turn":0,"index":15,"stop_reason":"tool_use","context":66184,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/termui.py'\ns=open(p).read()\ns=s.replace(\"import itertools\\nimport re\",\"import itertools\\nimport os\\nimport re\",1)\ns=s.replace(\" filename: str | os.PathLike[str] | cabc.Iterable[str | os.PathLike[str]] | None = None,\",\" filename: str\\n | os.PathLike[str]\\n | cabc.Iterable[str | os.PathLike[str]]\\n | None = None,\")\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -1; git commit -qam \"Issue 4: accept os.PathLike filenames in click.edit\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok"}}]}},{"n":16,"segment":0,"pos":80,"turn":0,"index":16,"stop_reason":"tool_use","context":66636,"step":{"text":"Issue 5 is the largest so far, so I'm reading the tests first.","calls":[{"name":"Bash","input":{"command":"grep -n \"def test_param_named_help\" -B25 -A50 tests/test_basic.py; grep -n \"def test_argument_sharing_param_name_warning\" -B5 -A40 tests/test_options.py; git diff HEAD~0 --stat; grep -n \"help\" src/click/core.py | grep -in \"get_help_option\\|help_option\\|_click_default\" "}}]}},{"n":17,"segment":0,"pos":83,"turn":0,"index":17,"stop_reason":"tool_use","context":69321,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 1100,1200p src/click/core.py; grep -n \"def help_option\" -A45 src/click/decorators.py; grep -n \"used more than once\" -B30 -A8 src/click/core.py; .venv/bin/python -m pytest -q tests/test_info_dict.py 2>&1 | grep -B5 -A25 \"test_command\\b\" | head -80"}}]}},{"n":18,"segment":0,"pos":85,"turn":0,"index":18,"stop_reason":"tool_use","context":73731,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' help_option(*help_option_names)(self)''',''' # The value is stored under a reserved name so that it can never\n # clash with a user parameter named ``help``.\n help_option(*help_option_names, _HELP_OPTION_NAME)(self)''')\ns=s.replace(''' opts = [opt for param in params for opt in param.opts]\n''',''' for param in self.params:\n if help_option is not None and param.name == _HELP_OPTION_NAME:\n warnings.warn(\n f\"The parameter name {_HELP_OPTION_NAME!r} is reserved for\"\n \" the automatic help option. Rename the parameter.\",\n stacklevel=3,\n )\n\n names_counter = Counter(p.name for p in params if p.name is not None)\n for param in params:\n if (\n isinstance(param, Argument)\n and param.name is not None\n and names_counter[param.name] > 1\n ):\n warnings.warn(\n f\"The parameter name {param.name!r} is used by an argument\"\n \" and another parameter. Their values overwrite each other.\",\n stacklevel=3,\n )\n\n opts = [opt for param in params for opt in param.opts]\n''')\ns=s.replace('''def _best_effort(''','''_HELP_OPTION_NAME = \"_click_default_help\"\n\n\ndef _best_effort(''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -12"}}]}},{"n":19,"segment":0,"pos":87,"turn":0,"index":19,"stop_reason":"tool_use","context":75563,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest -q tests/test_basic.py tests/test_info_dict.py tests/test_options.py 2>&1 | grep FAILED; .venv/bin/python -m pytest -q tests/test_basic.py tests/test_info_dict.py tests/test_options.py -k \"help or argument_sharing or test_context\" 2>&1 | tail -3"}}]}},{"n":20,"segment":0,"pos":89,"turn":0,"index":20,"stop_reason":"tool_use","context":76379,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest -q tests/test_basic.py -k squatting 2>&1 | head -50"}}]}},{"n":21,"segment":0,"pos":91,"turn":0,"index":21,"stop_reason":"tool_use","context":76984,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' and names_counter[param.name] > 1\n''',''' and param.name != _HELP_OPTION_NAME\n and names_counter[param.name] > 1\n''')\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -1; git commit -qam \"Issue 5: store help option under a reserved name and warn on name collisions\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok"}}]}},{"n":22,"segment":0,"pos":93,"turn":0,"index":22,"stop_reason":"tool_use","context":77445,"step":{"text":"Issue 5 is committed (66 failures left). I'm updating the task list, then starting issue 6.","calls":[{"name":"TaskUpdate","input":{"taskId":"1","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"2","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"3","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"4","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"5","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"6","status":"in_progress"}},{"name":"Bash","input":{"command":"grep -n \"test_source_uses_lf\" -B3 -A20 tests/test_shell_completion.py; grep -n \"def source\\b\" -B3 -A25 src/click/shell_completion.py; grep -rn \"\\.replace(\\|_source\\|linesep\\|\\\\\\\\r\" src/click/shell_completion.py | head -20"}}]}},{"n":23,"segment":0,"pos":108,"turn":0,"index":23,"stop_reason":"tool_use","context":79832,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 640,700p src/click/shell_completion.py | head -5; grep -n \"def shell_complete\" -A40 src/click/shell_completion.py | grep -n \"echo\"; grep -n \"_default_text_stdout\\|def echo\" src/click/utils.py | head; sed -n 327,350p src/click/utils.py"}}]}},{"n":24,"segment":0,"pos":110,"turn":0,"index":24,"stop_reason":"tool_use","context":80505,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -i 's/^ echo(comp.source())$/ # Write bytes so that platform newline translation cannot turn the\\n # script'\"'\"'s LF endings into CRLF, which shells reject.\\n echo(comp.source().encode(\"utf-8\"))/' src/click/shell_completion.py && sed -n 40,55p src/click/shell_completion.py; .venv/bin/python -m pytest -q 2>&1 | tail -1"}}]}},{"n":25,"segment":0,"pos":112,"turn":0,"index":25,"stop_reason":"tool_use","context":81078,"step":{"text":"","calls":[{"name":"Edit","input":{"replace_all":false,"file_path":"~/.cache/taskcut-eval/workspaces/click-zh--on--sonnet/src/click/shell_completion.py","old_string":" echo(comp.source())","new_string":" # Write bytes so that platform newline translation cannot turn the\n # script's LF endings into CRLF, which shells reject.\n echo(comp.source().encode(\"utf-8\"))"}}]}},{"n":26,"segment":0,"pos":114,"turn":0,"index":26,"stop_reason":"tool_use","context":81476,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest -q tests/test_shell_completion.py 2>&1 | tail -3; for i in 1 2 3; do .venv/bin/python -m pytest -q 2>&1 | tail -1; done"}}]}},{"n":27,"segment":0,"pos":116,"turn":0,"index":27,"stop_reason":"tool_use","context":81832,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"for i in 1 2 3 4; do .venv/bin/python -m pytest -q 2>&1 | grep ^FAILED | sed 's/ - .*//' | sort > $TMPDIR/r$i.txt; done; cat $TMPDIR/r*.txt | sort | uniq -c | awk '$1<4' "}}]}},{"n":28,"segment":0,"pos":118,"turn":0,"index":28,"stop_reason":"tool_use","context":82364,"step":{"text":"Those flaky failures are all in the issue 15 tests. They depend on set ordering, so they will pass once issue 15 is fixed. I'm committing issue 6 and moving on to issue 7.","calls":[{"name":"Bash","input":{"command":"git commit -qam \"Issue 6: emit completion source scripts with LF line endings\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_custom_version_option\" -B3 -A45 tests/test_basic.py; grep -n \"def version_option\" -A110 src/click/decorators.py"}}]}},{"n":29,"segment":0,"pos":121,"turn":0,"index":29,"stop_reason":"tool_use","context":85130,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 523,545p src/click/decorators.py; grep -n \"version_option\" src/click/__init__.py"}}]}},{"n":30,"segment":0,"pos":123,"turn":0,"index":30,"stop_reason":"tool_use","context":85601,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/decorators.py'\ns=open(p).read()\ns=s.replace('''def help_option(*param_decls''','''def custom_version_option(\n version_func: t.Callable[[Context], str],\n *param_decls: str,\n **kwargs: t.Any,\n) -> t.Callable[[FC], FC]:\n \"\"\"Add a ``--version`` option with custom behavior. Unlike\n :func:`version_option`, the text to show is produced by a callable.\n\n :param version_func: Called with the current :class:`Context` when the\n option is used. The returned string is printed before exiting.\n :param param_decls: One or more option names. Defaults to the single\n value ``\"--version\"``.\n :param kwargs: Extra arguments are passed to :func:`option`.\n\n .. versionadded:: 8.5.0\n \"\"\"\n\n def callback(ctx: Context, param: Parameter, value: bool) -> None:\n if not value or ctx.resilient_parsing:\n return\n\n echo(version_func(ctx), color=ctx.color)\n ctx.exit()\n\n if not param_decls:\n param_decls = (\"--version\",)\n\n kwargs.setdefault(\"is_flag\", True)\n kwargs.setdefault(\"expose_value\", False)\n kwargs.setdefault(\"is_eager\", True)\n kwargs.setdefault(\"help\", _(\"Show the version and exit.\"))\n kwargs[\"callback\"] = callback\n return option(*param_decls, **kwargs)\n\n\ndef help_option(*param_decls''',1)\nopen(p,'w').write(s)\np='src/click/__init__.py'\ns=open(p).read()\ns=s.replace(\"from .decorators import version_option as version_option\",\"from .decorators import version_option as version_option\",1)\nopen(p,'w').write(s)\nE\nsed -n 15,30p src/click/__init__.py"}}]}},{"n":31,"segment":0,"pos":125,"turn":0,"index":31,"stop_reason":"tool_use","context":87284,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -i '' 's/^from .decorators import confirmation_option as confirmation_option$/&\\nfrom .decorators import custom_version_option as custom_version_option/' src/click/__init__.py && .venv/bin/python -m pytest -q 2>&1 | tail -1; git commit -qam \"Issue 7: add custom_version_option decorator\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok"}},{"name":"TaskUpdate","input":{"taskId":"6","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"7","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"8","status":"in_progress"}},{"name":"Bash","input":{"command":"grep -n \"def test_hiding_of_unset_sentinel_in_callbacks\" -B3 -A70 tests/test_context.py; grep -n \"UNSET\" src/click/core.py | head -80"}}]}},{"n":32,"segment":0,"pos":135,"turn":0,"index":32,"stop_reason":"tool_use","context":90814,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 254,300p tests/test_context.py; sed -n 2572,2640p src/click/core.py; sed -n 2690,2760p src/click/core.py; .venv/bin/python -m pytest -q tests/test_context.py 2>&1 | grep -B3 -A30 \"^E\" | head -60"}}]}},{"n":33,"segment":0,"pos":137,"turn":0,"index":33,"stop_reason":"tool_use","context":93748,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' if value is UNSET:\n value = None\n value = self.callback(ctx, self, value)\n\n return value''',''' if value is UNSET:\n value = None\n\n # Same for the other parameters visible through ``ctx.params``:\n # hide the sentinel for the duration of the callback, and put it\n # back on the entries the callback left untouched.\n hidden = [k for k, v in ctx.params.items() if v is UNSET]\n for key in hidden:\n ctx.params[key] = None\n\n try:\n value = self.callback(ctx, self, value)\n finally:\n for key in hidden:\n if key in ctx.params and ctx.params[key] is None:\n ctx.params[key] = UNSET\n\n return value''')\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -1"}}]}},{"n":34,"segment":0,"pos":139,"turn":0,"index":34,"stop_reason":"tool_use","context":94696,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest -q tests/test_context.py 2>&1 | tail -2; git commit -qam \"Issue 8: hide UNSET sentinel from ctx.params inside callbacks\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok"}},{"name":"TaskUpdate","input":{"taskId":"8","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"9","status":"in_progress"}},{"name":"Bash","input":{"command":"grep -n \"def test_progressbar_lands_on_final_position\" -B12 -A40 tests/test_termui.py; grep -n \"class ProgressBar\" -A400 src/click/_termui_impl.py | grep -n \"def \\|pos\\|render_finish\\|eta\\|time\" | head -100"}}]}},{"n":35,"segment":0,"pos":147,"turn":0,"index":35,"stop_reason":"tool_use","context":97639,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 95,150p src/click/_termui_impl.py; sed -n 240,375p src/click/_termui_impl.py"}}]}},{"n":36,"segment":0,"pos":149,"turn":0,"index":36,"stop_reason":"tool_use","context":100014,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/_termui_impl.py'\ns=open(p).read()\ns=s.replace(''' tb: TracebackType | None,\n ) -> None:\n self.render_finish()\n''',''' tb: TracebackType | None,\n ) -> None:\n # Steps below ``update_min_steps`` may still be pending, land on the\n # final position before closing the bar.\n if self._flush_pending_steps():\n self.render_progress()\n\n self.render_finish()\n''',1)\ns=s.replace(''' def update(self, n_steps: int, current_item: V | None = None) -> None:\n \"\"\"Update the progress bar by advancing''',''' def _flush_pending_steps(self) -> bool:\n \"\"\"Apply steps that have not reached ``update_min_steps`` yet.\n Returns whether there were any.\"\"\"\n if not self._completed_intervals:\n return False\n\n self.make_step(self._completed_intervals)\n self._completed_intervals = 0\n return True\n\n def update(self, n_steps: int, current_item: V | None = None) -> None:\n \"\"\"Update the progress bar by advancing''',1)\ns=s.replace(''' def finish(self) -> None:\n self.eta_known = False''',''' def finish(self) -> None:\n self._flush_pending_steps()\n self.eta_known = False''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -1;.venv/bin/python -m pytest -q tests/test_termui.py -k progress 2>&1 | tail -4"}}]}},{"n":37,"segment":0,"pos":151,"turn":0,"index":37,"stop_reason":"tool_use","context":101156,"step":{"text":"Issue 9 passes; the only progress test still failing is issue 17's. I'm committing 9 and starting 10.","calls":[{"name":"Bash","input":{"command":"git commit -qam \"Issue 9: progress bar lands on its final position\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_generate_name\" -B15 -A40 tests/test_command_decorators.py; grep -n \"def test_other_command_invoke_with_defaults\" -B40 -A25 tests/test_commands.py | head -120; grep -n \"_command\\|_group\\|_cmd\" src/click/decorators.py | head"}},{"name":"TaskUpdate","input":{"taskId":"9","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"10","status":"in_progress"}}]}},{"n":38,"segment":0,"pos":158,"turn":0,"index":38,"stop_reason":"tool_use","context":103027,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -n \"__name__\" -B5 -A8 src/click/decorators.py | sed -n 1,60p; grep -rn \"_command\\b\\|_group\\b\" tests/test_commands.py tests/test_command_decorators.py | head"}}]}},{"n":39,"segment":0,"pos":160,"turn":0,"index":39,"stop_reason":"tool_use","context":104102,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/decorators.py'\ns=open(p).read()\ns=s.replace(''' cmd = cls(\n name=name or f.__name__.lower().replace(\"_\", \"-\"),''',''' cmd_name = name\n if not cmd_name:\n cmd_name = f.__name__.lower()\n # Drop a conventional suffix, ``init_data_command`` -> ``init-data``.\n for suffix in (\"_command\", \"_cmd\", \"_group\", \"_grp\"):\n if cmd_name.endswith(suffix) and len(cmd_name) > len(suffix):\n cmd_name = cmd_name[: -len(suffix)]\n break\n cmd_name = cmd_name.replace(\"_\", \"-\")\n\n cmd = cls(\n name=cmd_name,''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -1; grep -n \"versionchanged\\|versionadded\" src/click/decorators.py | sed -n 1,12p; sed -n 130,160p src/click/decorators.py"}}]}},{"n":40,"segment":0,"pos":162,"turn":0,"index":40,"stop_reason":"tool_use","context":105147,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"git commit -qam \"Issue 10: drop conventional suffixes from generated command names\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; sed -n 296,325p tests/test_commands.py; grep -n \"subcommand_metavar\" -B3 -A12 src/click/core.py | head -80"}},{"name":"TaskUpdate","input":{"taskId":"10","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"11","status":"in_progress"}}]}},{"n":41,"segment":0,"pos":168,"turn":0,"index":41,"stop_reason":"tool_use","context":107450,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' if chain:\n subcommand_metavar = \"COMMAND1 [ARGS]... [COMMAND2 [ARGS]...]...\"\n else:\n subcommand_metavar = \"COMMAND [ARGS]...\"\n''',''' # The leading subcommand is optional if the group can be invoked\n # without one.\n if chain:\n first = \"[COMMAND1]\" if invoke_without_command else \"COMMAND1\"\n subcommand_metavar = f\"{first} [ARGS]... [COMMAND2 [ARGS]...]...\"\n else:\n first = \"[COMMAND]\" if invoke_without_command else \"COMMAND\"\n subcommand_metavar = f\"{first} [ARGS]...\"\n''')\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -1; git commit -qam \"Issue 11: mark the subcommand optional in usage when the group allows it\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok"}},{"name":"TaskUpdate","input":{"taskId":"11","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"12","status":"in_progress"}},{"name":"Bash","input":{"command":"grep -n \"less_detection\\|less_raw_mode\\|def test_tempfile_pager_passes_pager_params\" -B30 -A30 tests/test_termui.py | sed -n 1,260p"}}]}},{"n":42,"segment":0,"pos":176,"turn":0,"index":42,"stop_reason":"tool_use","context":111956,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 838,862p tests/test_termui.py; sed -n 921,960p tests/test_termui.py; grep -n \"_force_tempfile_pager\" -A22 tests/test_termui.py | head -40; sed -n 420,660p src/click/_termui_impl.py"}}]}},{"n":43,"segment":0,"pos":178,"turn":0,"index":43,"stop_reason":"tool_use","context":117044,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -rn \"_tempfilepager\\|_pipepager(\" tests | head; python3 - <<'E'\np='src/click/_termui_impl.py'\ns=open(p).read()\ns=s.replace(''' if color is None and cmd_path.name == \"less\":\n less_flags = f\"{os.environ.get('LESS', '')}{' '.join(cmd_params)}\"\n if not less_flags:\n env[\"LESS\"] = \"-R\"\n color = True\n elif \"r\" in less_flags or \"R\" in less_flags:\n color = True\n''',''' # The stem is matched so that ``less.exe`` counts as ``less``. Windows\n # filesystems are case-insensitive, so the match casefolds there.\n stem = cmd_path.stem.casefold() if WIN else cmd_path.stem\n\n if color is None and stem == \"less\":\n less_env = os.environ.get(\"LESS\", \"\")\n\n if not less_env and not cmd_params:\n env[\"LESS\"] = \"-R\"\n color = True\n elif _less_requests_raw_mode(less_env, cmd_params):\n color = True\n''')\ns=s.replace('''@contextlib.contextmanager\ndef _pipepager(''','''def _less_requests_raw_mode(less_env: str, cmd_params: list[str]) -> bool:\n \"\"\"Whether the ``LESS`` variable or the command line parameters ask\n ``less`` to pass raw control characters through (``-r``, ``-R``,\n ``--raw-control-chars`` or ``--RAW-CONTROL-CHARS``).\n\n The option tokens are parsed, so filenames or other options that merely\n contain the letter ``r`` do not count.\n \"\"\"\n try:\n env_tokens = shlex.split(less_env)\n except ValueError:\n env_tokens = less_env.split()\n\n for token in [*env_tokens, *cmd_params]:\n if token == \"--\":\n # Everything after this is a filename.\n break\n\n if token.startswith(\"--\"):\n if token.lower() == \"--raw-control-chars\":\n return True\n elif token.startswith(\"-\") and (\"r\" in token or \"R\" in token):\n return True\n\n return False\n\n\n@contextlib.contextmanager\ndef _pipepager(''',1)\ns=s.replace('''def _tempfilepager(\n cmd_path: Path, color: bool | None = None\n)''','''def _tempfilepager(\n cmd_path: Path, cmd_params: list[str], color: bool | None = None\n)''')\ns=s.replace(''' platforms. The command is invoked with the temporary file as its only\n argument: any parameters the user set in ``PAGER`` are not passed on.''',''' platforms. The command is invoked with the parameters the user set in\n ``PAGER``, followed by the temporary file.''')\ns=s.replace(\"subprocess.call([str(cmd_path), f.name])\",\"subprocess.call([str(cmd_path), *cmd_params, f.name])\")\ns=s.replace(\"return _tempfilepager(cmd_path, color)\",\"return _tempfilepager(cmd_path, cmd_params, color)\")\nopen(p,'w').write(s)\nE\ngrep -n \"^import shlex\" src/click/_termui_impl.py; .venv/bin/python -m pytest -q 2>&1 | tail -1"}}]}},{"n":44,"segment":0,"pos":180,"turn":0,"index":44,"stop_reason":"tool_use","context":119517,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest -q tests/test_termui.py 2>&1 | grep FAILED; git status --short"}}]}},{"n":45,"segment":0,"pos":182,"turn":0,"index":45,"stop_reason":"tool_use","context":119790,"step":{"text":"Issue 12 is done. Only tests belonging to later issues still fail in test_termui.py. Committing, then on to issue 13.","calls":[{"name":"Bash","input":{"command":"git commit -qam \"Issue 12: forward PAGER parameters and parse less raw-mode options\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"never_sees_unset\" -B40 -A40 tests/test_arguments.py | head -150; grep -n \"def type_cast_value\" -B3 -A40 src/click/core.py"}},{"name":"TaskUpdate","input":{"taskId":"12","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"13","status":"in_progress"}}]}},{"n":46,"segment":0,"pos":189,"turn":0,"index":46,"stop_reason":"tool_use","context":122419,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -n \"option_custom_class_can_override_type_cast_value_and_never\" -B30 -A30 tests/test_options.py; .venv/bin/python -m pytest -q tests/test_arguments.py tests/test_options.py -k never_sees 2>&1 | grep -E \"^E|passed|failed\" | head"}}]}},{"n":47,"segment":0,"pos":191,"turn":0,"index":47,"stop_reason":"tool_use","context":124035,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -rn \"type_cast_value\" src/ | grep -v \"^src/click/core.py:.*def \"; grep -n \"def process_value\" src/click/core.py"}}]}},{"n":48,"segment":0,"pos":193,"turn":0,"index":48,"stop_reason":"tool_use","context":124996,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 900,925p src/click/core.py"}}]}},{"n":49,"segment":0,"pos":195,"turn":0,"index":49,"stop_reason":"tool_use","context":125536,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' value = self.type_cast_value(ctx, value)\n\n if self.required and self.value_is_missing(value):''',''' # User overrides of ``type_cast_value`` must never see the internal\n # UNSET sentinel, hand them ``None`` and restore it afterwards.\n was_unset = value is UNSET\n value = self.type_cast_value(ctx, None if was_unset else value)\n if was_unset and value is None:\n value = UNSET\n\n if self.required and self.value_is_missing(value):''',1)\ns=s.replace(''' def type_cast_value(self, ctx: Context, value: t.Any) -> t.Any:\n if self.is_flag and not self.required:\n if value is UNSET:\n if self.is_bool_flag:\n # If the flag is a boolean flag, we return False if it is not set.\n value = False\n return super().type_cast_value(ctx, value)\n''',''' def process_value(self, ctx: Context, value: t.Any) -> t.Any:\n if self.is_flag and not self.required:\n if value is UNSET:\n if self.is_bool_flag:\n # If the flag is a boolean flag, we return False if it is not set.\n value = False\n return super().process_value(ctx, value)\n''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -1"}}]}},{"n":50,"segment":0,"pos":197,"turn":0,"index":50,"stop_reason":"tool_use","context":126267,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest -q tests/test_arguments.py tests/test_options.py -k never_sees 2>&1 | tail -1; git commit -qam \"Issue 13: never pass UNSET to type_cast_value overrides\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok"}},{"name":"TaskUpdate","input":{"taskId":"13","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"14","status":"in_progress"}},{"name":"Bash","input":{"command":"sed -n 960,975p tests/test_termui.py; grep -n \"def echo_via_pager\" -A60 src/click/termui.py | tail -30"}}]}},{"n":51,"segment":0,"pos":205,"turn":0,"index":51,"stop_reason":"tool_use","context":127738,"step":{"text":"Issue 13 is committed. Now issue 14: I'm reading `echo_via_pager`.","calls":[{"name":"Bash","input":{"command":"grep -n \"^def echo_via_pager\" -A50 src/click/termui.py | grep -v '^\\s*$' | sed -n 1,80p"}}]}},{"n":52,"segment":0,"pos":208,"turn":0,"index":52,"stop_reason":"tool_use","context":128697,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/termui.py'\ns=open(p).read()\ns=s.replace(''' pager.write(text)\n''',''' pager.write(text)\n # Flush every chunk so that output streams to the pager as it is\n # produced, instead of waiting for the buffer to fill.\n pager.flush()\n''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -1"}}]}},{"n":53,"segment":0,"pos":210,"turn":0,"index":53,"stop_reason":"tool_use","context":129086,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"git commit -qam \"Issue 14: flush each chunk written by echo_via_pager\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_get_help_option_names\" -B30 -A25 tests/test_commands.py"}},{"name":"TaskUpdate","input":{"taskId":"14","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"15","status":"in_progress"}}]}},{"n":54,"segment":0,"pos":216,"turn":0,"index":54,"stop_reason":"tool_use","context":130623,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\ns=s.replace(''' all_names = set(ctx.help_option_names)\n for param in self.params:\n all_names.difference_update(param.opts)\n all_names.difference_update(param.secondary_opts)\n return list(all_names)''',''' # A dict keeps the declaration order while dropping duplicates.\n all_names = dict.fromkeys(ctx.help_option_names)\n for param in self.params:\n for name in (*param.opts, *param.secondary_opts):\n all_names.pop(name, None)\n return list(all_names)''',1)\nopen(p,'w').write(s)\nE\nfor i in 1 2 3; do .venv/bin/python -m pytest -q 2>&1 | tail -1; done"}}]}},{"n":55,"segment":0,"pos":218,"turn":0,"index":55,"stop_reason":"tool_use","context":131146,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"git commit -qam \"Issue 15: preserve declaration order of help option names\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_isolated_filesystem_deprecated\" -B5 -A25 tests/test_deprecations.py; grep -n \"def isolated_filesystem\" -B3 -A40 src/click/testing.py; grep -rn \"isolated_filesystem\" src docs --include=* -l"}},{"name":"TaskUpdate","input":{"taskId":"15","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"16","status":"in_progress"}}]}},{"n":56,"segment":0,"pos":224,"turn":0,"index":56,"stop_reason":"tool_use","context":132247,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -rn \"isolated_filesystem\" src docs tests CHANGES.rst | grep -v \"\\.pyc\" | head -30; grep -n \"filterwarnings\" -A6 pyproject.toml; grep -n \"DeprecationWarning\" src/click/core.py | head -3"}}]}},{"n":57,"segment":0,"pos":226,"turn":0,"index":57,"stop_reason":"tool_use","context":133651,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 528,545p src/click/core.py; sed -n 180,195p docs/testing.md; grep -n \"^import\\|^from\" src/click/testing.py | head -30"}}]}},{"n":58,"segment":0,"pos":228,"turn":0,"index":58,"stop_reason":"tool_use","context":134534,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/testing.py'\ns=open(p).read()\ns=s.replace(''' interfering with each other.\n\n :param temp_dir: Create the temporary directory under this\n directory. If given, the created directory is not removed\n when exiting.\n\n .. versionchanged:: 8.0\n Added the ``temp_dir`` parameter.\n \"\"\"\n cwd = os.getcwd()''',''' interfering with each other.\n\n .. deprecated:: 8.5.0\n Will be removed in Click 9.0. It predates Python 3 and modern\n pytest. It relies on :func:`os.chdir`, which changes\n process-global state and is not thread-safe, so it cannot be used\n to run tests in parallel threads. Use :class:`tempfile.TemporaryDirectory`\n or pytest's ``tmp_path`` fixture, and pass absolute paths.\n\n :param temp_dir: Create the temporary directory under this\n directory. If given, the created directory is not removed\n when exiting.\n\n .. versionchanged:: 8.0\n Added the ``temp_dir`` parameter.\n \"\"\"\n import warnings\n\n warnings.warn(\n \"'isolated_filesystem' is deprecated and will be removed in Click\"\n \" 9.0. Use a temporary directory (`tempfile.TemporaryDirectory` or\"\n \" pytest's `tmp_path`) with absolute paths instead.\",\n DeprecationWarning,\n stacklevel=3,\n )\n cwd = os.getcwd()''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -1"}}]}},{"n":59,"segment":0,"pos":230,"turn":0,"index":59,"stop_reason":"tool_use","context":135269,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"git commit -qam \"Issue 16: deprecate CliRunner.isolated_filesystem\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_progressbar_item_show_func\" -B3 -A30 tests/test_termui.py; grep -n \"item_show_func\\|def format_progress_line\" -A3 src/click/_termui_impl.py | head -50; sed -n 215,245p src/click/_termui_impl.py"}},{"name":"TaskUpdate","input":{"taskId":"16","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"17","status":"in_progress"}}]}},{"n":60,"segment":0,"pos":236,"turn":0,"index":60,"stop_reason":"tool_use","context":136920,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python - <<'E'\nimport click, click._termui_impl as m\nfrom click.testing import CliRunner\nm.isatty=lambda _:True\n@click.command()\ndef cli():\n with click.progressbar(range(3), item_show_func=lambda x: str(x)) as progress:\n for item in progress:\n click.echo(f\" item {item}\")\nprint(repr(CliRunner().invoke(cli).output))\nE"}}]}},{"n":61,"segment":0,"pos":238,"turn":0,"index":61,"stop_reason":"tool_use","context":137294,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/_termui_impl.py'\ns=open(p).read()\ns=s.replace(''' self.current_item = rv\n yield rv''',''' self.current_item = rv\n # Show the item being processed while its block runs.\n if self.item_show_func is not None:\n self.render_progress()\n yield rv''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -1"}}]}},{"n":62,"segment":0,"pos":240,"turn":0,"index":62,"stop_reason":"tool_use","context":138411,"step":{"text":"Issue 17 passes now. I'm committing it and moving to issue 18.","calls":[{"name":"Bash","input":{"command":"git commit -qam \"Issue 17: show the current item in the progress bar while it is processed\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_deprecated_empty_help_no_leading_space\" -B22 -A22 tests/test_commands.py tests/test_options.py; grep -n \"DEPRECATED\" -B8 -A8 src/click/core.py | sed -n 1,120p"}},{"name":"TaskUpdate","input":{"taskId":"17","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"18","status":"in_progress"}}]}},{"n":63,"segment":0,"pos":247,"turn":0,"index":63,"stop_reason":"tool_use","context":141330,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -n \"_format_deprecated_suffix\\|DEPRECATED\" src/click/*.py"}}]}},{"n":64,"segment":0,"pos":249,"turn":0,"index":64,"stop_reason":"tool_use","context":141606,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -n \"eprecated\" src/click/core.py | sed -n 1,60p"}}]}},{"n":65,"segment":0,"pos":251,"turn":0,"index":65,"stop_reason":"tool_use","context":142949,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 1240,1252p src/click/core.py; sed -n 1274,1284p src/click/core.py; sed -n 2962,2972p src/click/core.py; sed -n 3672,3690p src/click/core.py; sed -n 3700,3712p src/click/core.py; grep -n \"def get_help_record\" -A30 src/click/core.py | grep -n \"help\\b\\|extra\" | head -20"}}]}},{"n":66,"segment":0,"pos":253,"turn":0,"index":66,"stop_reason":"tool_use","context":144367,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/core.py'\ns=open(p).read()\nold=''' text = f\"{_(text)} {_format_deprecated_label(self.deprecated)}\"'''\nnew=''' label = _format_deprecated_label(self.deprecated)\n text = f\"{_(text)} {label}\" if text else label'''\nassert s.count(old)==2\ns=s.replace(old,new)\ns=s.replace(''' help = f\"{help} {label}\" if help is not None else label''',''' help = f\"{help} {label}\" if help else label''')\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -1"}}]}},{"n":67,"segment":0,"pos":255,"turn":0,"index":67,"stop_reason":"tool_use","context":144865,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"git commit -qam \"Issue 18: no stray leading space before the deprecation label\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def test_light_imports\" -B5 -A50 tests/test_imports.py; grep -rn \"typing_extensions\" src pyproject.toml | grep -v pyc"}},{"name":"TaskUpdate","input":{"taskId":"18","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"19","status":"in_progress"}}]}},{"n":68,"segment":0,"pos":261,"turn":0,"index":68,"stop_reason":"tool_use","context":145869,"step":{"text":"The issue 18 commit is in and I've started on issue 19. First step is finding what the import test actually complains about.","calls":[{"name":"Bash","input":{"command":"sed -n 1,66p tests/test_imports.py; .venv/bin/python -m pytest -q tests/test_imports.py 2>&1 | grep -E \"^E\" | head; .venv/bin/python -X importtime -c \"import click\" 2>&1 | grep -i \"typing_ext\\|builtins\"; sed -n 15,40p src/click/types.py; sed -n 28,42p src/click/termui.py"}}]}},{"n":69,"segment":0,"pos":264,"turn":0,"index":69,"stop_reason":"tool_use","context":147237,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -n \"builtins\" src/click/*.py; sed -n 52,70p src/click/shell_completion.py; grep -n \"_InputT_contra\\|_ValueT_co\\b\" src/click/*.py | head -30; grep -n \"TypeVar\\b\" src/click/shell_completion.py src/click/types.py; grep -n \"requires-python\" pyproject.toml"}}]}},{"n":70,"segment":0,"pos":266,"turn":0,"index":70,"stop_reason":"tool_use","context":149576,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -n \"ParamType\\[\" src/click/*.py | grep -v \"^\\S*:\\s*#\" | head -20; ls ~/.pyenv/versions 2>/dev/null; which -a python3.10 python3.11 python3.12 uv 2>/dev/null; sed -n 140,152p src/click/termui.py"}}]}},{"n":71,"segment":0,"pos":268,"turn":0,"index":71,"stop_reason":"tool_use","context":152556,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/types.py'\ns=open(p).read()\ns=s.replace('''# TypeVar(default=...) support.\nif sys.version_info >= (3, 13):\n from typing import TypeVar\nelse:\n from typing_extensions import TypeVar\n\n''','',1)\ns=s.replace('''_InputT_contra = TypeVar(\"_InputT_contra\", contravariant=True, default=t.Any)\n''','''\n# ``TypeVar(default=...)`` is only available at runtime from Python 3.13. Type\n# checkers get it from ``typing_extensions``, which is never imported at\n# runtime.\nif t.TYPE_CHECKING:\n from typing_extensions import TypeVar\n\n _InputT_contra = TypeVar(\"_InputT_contra\", contravariant=True, default=t.Any)\nelif sys.version_info >= (3, 13):\n _InputT_contra = t.TypeVar(\"_InputT_contra\", contravariant=True, default=t.Any)\nelse:\n _InputT_contra = t.TypeVar(\"_InputT_contra\", contravariant=True)\n''',1)\ns=s.replace('''class ParamType(t.Generic[_ValueT_co, _InputT_contra], abc.ABC):''','''class ParamType(t.Generic[_ValueT_co, _InputT_contra], abc.ABC):''')\nopen(p,'w').write(s)\nE\nsed -n 40,60p src/click/types.py; grep -n \"^class ParamType\" -A60 src/click/types.py | grep -n \" name: \\| is_composite\\| envvar_list\" "}}]}},{"n":72,"segment":0,"pos":270,"turn":0,"index":72,"stop_reason":"tool_use","context":153637,"step":{"text":"","calls":[{"name":"bash","input":{"command":"cd ~/.cache/taskcut-eval/workspaces/click-zh--on--sonnet && sed -n 93,100p src/click/types.py"}}]}},{"n":73,"segment":0,"pos":272,"turn":0,"index":73,"stop_reason":"tool_use","context":153886,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 93,100p src/click/types.py"}}]}},{"n":74,"segment":0,"pos":274,"turn":0,"index":74,"stop_reason":"tool_use","context":154199,"step":{"text":"I'm adding a `__class_getitem__` shim for Python below 3.13 (plain TypeVars have no defaults there) and swapping the `builtins` import in termui.py.","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/types.py'\ns=open(p).read()\ns=s.replace(''' envvar_list_splitter: t.ClassVar[str | None] = None\n\n def to_info_dict(self) -> ParamTypeInfoDict:''',''' envvar_list_splitter: t.ClassVar[str | None] = None\n\n if sys.version_info < (3, 13):\n\n def __class_getitem__(cls, params: t.Any) -> t.Any:\n # Emulate the ``default=t.Any`` of the input type variable, which\n # a plain ``typing.TypeVar`` does not support before Python 3.13.\n if not isinstance(params, tuple):\n params = (params, t.Any)\n\n return super().__class_getitem__(params) # type: ignore[misc]\n\n def to_info_dict(self) -> ParamTypeInfoDict:''',1)\nopen(p,'w').write(s)\np='src/click/termui.py'\ns=open(p).read()\ns=s.replace(\"import builtins\\n\",\"\",1)\ns=s.replace(\" return builtins.type(default) is builtins.type(type)\",\" return _type(default) is _type(type)\")\ns=s.replace(\"\\ndef _is_expected_type(\",\"\\n# ``type`` is shadowed by a parameter name below.\\n_type = type\\n\\n\\ndef _is_expected_type(\",1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -1\n(uv run --python 3.12 --no-project --with pytest --with typing_extensions python - <<'E'\nimport sys; sys.path.insert(0,'src')\nimport click\nfrom click.types import ParamType\nprint(sys.version, ParamType[int], click.Choice([\"a\"]), 'typing_extensions' in sys.modules)\nE\n) 2>&1 | tail -5"}}]}},{"n":75,"segment":0,"pos":277,"turn":0,"index":75,"stop_reason":"tool_use","context":155292,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/types.py'\ns=open(p).read()\ns=s.replace(''' if not isinstance(params, tuple):\n params = (params, t.Any)\n''',''' if not isinstance(params, tuple) and cls.__parameters__ == (\n _ValueT_co,\n _InputT_contra,\n ):\n params = (params, t.Any)\n''',1)\nopen(p,'w').write(s)\nE\nfor v in 3.10 3.12; do uv run --python $v --no-project --with pytest --with typing_extensions python - <<'E' 2>&1 | tail -3\nimport sys; sys.path.insert(0,'src')\nimport click\nfrom click.types import ParamType\nprint(sys.version_info[:2], ParamType[int], click.Choice([\"a\"]), click.INT)\nE\ndone\nuv run --python 3.12 --no-project --with pytest python -m pytest -q -p no:cacheprovider 2>&1 | tail -3"}}]}},{"n":76,"segment":0,"pos":279,"turn":0,"index":76,"stop_reason":"tool_use","context":156824,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"uv run --python 3.10 --no-project python - <<'E' 2>&1 | tail -3\nimport sys; sys.path.insert(0,'src')\nimport click\nprint(\"typing_extensions\" in sys.modules, click.__name__)\nE\nsed -n 66,76p src/click/_winconsole.py; .venv/bin/python -m pytest -q 2>&1 | tail -1; git status --short"}}]}},{"n":77,"segment":0,"pos":281,"turn":0,"index":77,"stop_reason":"tool_use","context":157407,"step":{"text":"Click now imports cleanly on Python 3.10 without `typing_extensions` installed, and the suite has 7 failures left. Committing issue 19, then issue 20.","calls":[{"name":"Bash","input":{"command":"git commit -qam \"Issue 19: stop importing typing_extensions and builtins at runtime\n\nCo-Authored-By: Claude Sonnet 5 \" && echo ok; grep -n \"def write_usage\" -A40 src/click/formatting.py; grep -n \"write_usage\" -B3 -A30 tests/test_formatting.py | sed -n 1,140p"}},{"name":"TaskUpdate","input":{"taskId":"19","status":"completed"}},{"name":"TaskUpdate","input":{"taskId":"20","status":"in_progress"}}]}},{"n":78,"segment":0,"pos":288,"turn":0,"index":78,"stop_reason":"tool_use","context":160842,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 544,577p tests/test_formatting.py"}}]}},{"n":79,"segment":0,"pos":290,"turn":0,"index":79,"stop_reason":"tool_use","context":161292,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'E'\np='src/click/formatting.py'\ns=open(p).read()\ns=s.replace(''' usage_prefix = f\"{prefix:>{self.current_indent}}{prog} \"\n text_width''',''' if not args:\n # Nothing to wrap, keep just the prefix and program, without the\n # separator that would trail them.\n self.write(f\"{prefix:>{self.current_indent}}{prog}\\\\n\")\n return\n\n usage_prefix = f\"{prefix:>{self.current_indent}}{prog} \"\n text_width''',1)\nopen(p,'w').write(s)\nE\n.venv/bin/python -m pytest -q 2>&1 | tail -3"}}]}},{"n":80,"segment":0,"pos":292,"turn":0,"index":80,"stop_reason":"tool_use","context":161810,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"git commit -qam \"Issue 20: write_usage without args emits no spurious separator\n\nCo-Authored-By: Claude Sonnet 5 \" && git log --oneline | head -22; git status --short; git diff 4ad54a7 --stat -- tests | tail -1"}},{"name":"TaskUpdate","input":{"taskId":"20","status":"completed"}}]}},{"n":81,"segment":0,"pos":296,"turn":0,"index":81,"stop_reason":"end_turn","context":162763,"step":{"text":"20 个问题已按 ISSUES.md 的顺序做完，每个单独提交，提交信息标明\"Issue N\"。整个测试集现在是 2058 通过、25 跳过、1 xfailed，0 失败，全程没有改动、跳过或删除任何测试。\n\n提交都在新建的 `work` 分支上，起点是 `4ad54a7`。\n\n各问题的处理：\n\n1. `echo` 在 `nl=True` 时保持 bytes 类型，不再把空 bytes 变成 str。\n2. `Command.main` 中，第二次 Ctrl-C 不再改变退出码。提示信息尽力输出，退出码始终生效。\n3. 可选的 `Choice`/`DateTime` 参数，如果元数据已带方括号，就不再重复加。\n4. `click.edit(filename=...)` 支持 `os.PathLike`，运行时和类型标注都改了。\n5. 帮助选项的值改存到保留名 `_click_default_help`，不再与用户的 `help` 参数冲突。占用这个保留名、或参数名与其他参数重名时会发出警告。\n6. 补全脚本改用 bytes 输出，保证是 LF 换行。\n7. 新增并导出 `click.custom_version_option`。\n8. 选项回调执行期间，`ctx.params` 里的 UNSET 显示为 `None`，回调没改的条目事后还原。\n9. 进度条收尾时会把不足 `update_min_steps` 的剩余步数结算掉。\n10. 自动生成的命令名去掉 `_command`、`_cmd`、`_group`、`_grp` 后缀。\n11. 允许无子命令调用的分组，用法行里子命令带方括号。\n12. `PAGER` 的参数会传给 tempfile 分页器，`less` 按 stem 识别（Windows 上不区分大小写），raw 模式改为解析选项 token 判断。\n13. 用户重写的 `type_cast_value` 收到的是 `None`，不会拿到 UNSET。\n14. `echo_via_pager` 每写一块就 flush，输出会流式到达分页器。\n15. `get_help_option_names` 保持声明顺序（以前用 `set`，顺序不稳定）。\n16. `CliRunner.isolated_filesystem` 会发出 `DeprecationWarning`，并在 docstring 里写明局限。\n17. `item_show_func` 在处理某个条目期间就显示该条目。\n18. 已弃用命令或选项的 help 为空时，弃用标签前不再有多余空格。\n19. 去掉运行时对 `typing_extensions` 和 `builtins` 的导入。我另外在 Python 3.10 和 3.12 上验证了能正常导入，3.10 未安装 `typing_extensions` 时也一样。\n20. `write_usage` 没有参数时，不再输出多余的分隔符和空行。\n\n补充说明：中间有一段时间全量失败数在 65 到 67 之间浮动，原因是问题 15 的测试依赖 `set` 的顺序，修完之后就稳定了。\n\nALL ISSUES DONE","calls":[]}}]} diff --git a/eval/replay/click-zh--on.labels b/eval/replay/click-zh--on.labels new file mode 100644 index 0000000..2d63d99 --- /dev/null +++ b/eval/replay/click-zh--on.labels @@ -0,0 +1,15 @@ +# click-zh--on: the click-zh workload, arm on: the same at a floor of 30, which it never reached. Claude Code 2.1.280, Sonnet 5, 2026-09-23. +# One line per step taskcut would judge: N moves on, S does not, E either. See eval/replay/LABELS.md. +2 E Issue 1. +8 N Issue 1 is committed, and issue 2 now passes (86 → 81 failures). I'm committing issue 2 and moving on to issue 3. +14 S Issue 4 needs `import os` in termui.py. I'll add it and format the long signature line by hand. +16 N Issue 5 is the largest so far, so I'm reading the tests first. +22 N Issue 5 is committed (66 failures left). I'm updating the task list, then starting issue 6. +28 N Those flaky failures are all in the issue 15 tests. They depend on set ordering, so they will pass once issue 15 is fixed. I'm committing issue 6 and moving on… +37 N Issue 9 passes; the only progress test still failing is issue 17's. I'm committing 9 and starting 10. +45 N Issue 12 is done. Only tests belonging to later issues still fail in test_termui.py. Committing, then on to issue 13. +51 E Issue 13 is committed. Now issue 14: I'm reading `echo_via_pager`. +62 N Issue 17 passes now. I'm committing it and moving to issue 18. +68 N The issue 18 commit is in and I've started on issue 19. First step is finding what the import test actually complains about. +74 S I'm adding a `__class_getitem__` shim for Python below 3.13 (plain TypeVars have no defaults there) and swapping the `builtins` import in termui.py. +77 N Click now imports cleanly on Python 3.10 without `typing_extensions` installed, and the suite has 7 failures left. Committing issue 19, then issue 20. diff --git a/eval/replay/issues-long--off.json b/eval/replay/issues-long--off.json new file mode 100644 index 0000000..29c057b --- /dev/null +++ b/eval/replay/issues-long--off.json @@ -0,0 +1 @@ +{"name":"issues-long--off","source":"the issues-long workload, arm off: 20 real click changes, one per message. Claude Code 2.1.278, Sonnet 5, 2026-09-21.","memory":[],"judged":[5,12,13,18,40,43,67,74,81,97,101,104,113,119,127,132,134],"segments":[[{"role":"user","text":"This is a checkout of click, the command-line library. Twenty issues are open against it -- bug reports and feature requests -- and I am going to hand them to you one at a time. Each comes with the tests that fail because of it; the tests are the specification.\n\nRun tests with `.venv/bin/python -m pytest`. The whole suite takes a few seconds.\n\nFor every issue: make the change in src/click. Never modify, skip or delete a test to make it pass. Do not break anything that currently works.\n\nAcknowledge and wait for the first issue.","toolUses":[]},{"role":"assistant","text":"Understood. For each issue I'll fix the code in `src/click` only, leave tests untouched, and run the full suite with `.venv/bin/python -m pytest` to confirm nothing that currently works breaks.\n\nSend the first issue when you're ready.","toolUses":[]},{"role":"user","text":"Issue 1 of 20. Bug report.\n\n`click.echo` misbehaves when it is given empty bytes and a custom file.\n\nFailing:\n tests/test_utils/test_echo.py::test_echo_custom_file","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01QKBGJU4d8QPqKRegpAdQ2T","tool":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_utils/test_echo.py -x -q 2>&1 | tail -30"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01MtBBWxoQv3NRtbPSf868em","tool":"Grep","input":{"pattern":"def echo","path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click","output_mode":"content"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01QKBGJU4d8QPqKRegpAdQ2T","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01MtBBWxoQv3NRtbPSf868em","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Jh5kqUHQgdZ2jg81PyuJtj","tool":"Read","input":{"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/utils.py","offset":245,"limit":115}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Jh5kqUHQgdZ2jg81PyuJtj","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01MgkG21WQnbzPrfb2GmHArN","tool":"Grep","input":{"pattern":"def test_echo_custom_file","path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/tests/test_utils/test_echo.py","output_mode":"content","-A":12}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01MgkG21WQnbzPrfb2GmHArN","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01D4zCb3mKcbBSTBv7p77heq","tool":"Edit","input":{"replace_all":false,"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/utils.py","old_string":" out = out or \"\"\n if isinstance(out, str):","new_string":" if out is None:\n out = \"\"\n\n if isinstance(out, str):"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01D4zCb3mKcbBSTBv7p77heq","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Dw2Vx8rQCsn3ntiFdQHpsK","tool":"Bash","input":{"command":".venv/bin/python -m pytest -q 2>&1 | tail -15"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Dw2Vx8rQCsn3ntiFdQHpsK","text":""}]},{"role":"assistant","text":"The suite has 84 failures, which are presumably the other open issues. To check I didn't add any, I'll compare against the baseline without my change.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_011ETtkDaCmR1EYX4KXNMCYP","tool":"Bash","input":{"command":".venv/bin/python -m pytest -q 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > \"$TMPDIR/after.txt\" 2>/dev/null || true; S=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad; .venv/bin/python -m pytest -q 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/after.txt; git stash -q; .venv/bin/python -m pytest -q 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/before.txt; git stash pop -q; wc -l $S/before.txt $S/after.txt; echo \"--- newly failing:\"; comm -13 $S/before.txt $S/after.txt; echo \"--- newly passing:\"; comm -23 $S/before.txt $S/after.txt; git status --short"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_011ETtkDaCmR1EYX4KXNMCYP","text":""}]},{"role":"assistant","text":"Issue 1 is fixed. `tests/test_utils/test_echo.py::test_echo_custom_file` now passes, and no test that passed before now fails.\n\n**Cause:** in `click.echo` (`src/click/utils.py`), the newline step did `out = out or \"\"`. Empty bytes are falsy, so `b\"\"` was replaced with the str `\"\"`. The newline was then appended as a str, and writing that to a `BytesIO` raised `TypeError: a bytes-like object is required, not 'str'`.\n\n**Fix:** only `None` is now replaced with `\"\"`. Empty bytes stay bytes and get `b\"\\n\"` appended, so `click.echo(b\"\", b)` writes `b\"\\n\"`.\n\nThe full suite went from 85 failures to 84, and the one that went away is the target test. The other 84 were already failing and I haven't touched them, so I'm assuming they belong to the remaining issues.\n\nReady for issue 2.","toolUses":[]},{"role":"user","text":"Issue 2 of 20. Bug report.\n\n**`KeyboardInterrupt` during `click.prompt()` can race** (upstream #3802)\n\nWhen a user presses Ctrl-C during `click.prompt()`, this may cause an unhandled exception instead of a clean abort. Seen in CI on an Ubuntu 22.04 arm runner; the same test passed on x64, macOS and Windows, so it is likely a race that does not show up every time. The traceback runs through `Command.main`, `invoke` and `make_context`.\n\nFailing:\n tests/test_abort_interrupt.py::test_interrupt_while_exiting_after_success\n tests/test_abort_interrupt.py::test_interrupt_while_reporting_abort\n tests/test_abort_interrupt.py::test_interrupt_while_reporting_error","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Un15eCp7aYr5C2mkg3y3vH","tool":"Bash","input":{"command":"cat tests/test_abort_interrupt.py; .venv/bin/python -m pytest tests/test_abort_interrupt.py -q 2>&1 | tail -60"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01A98r98B1f5fUxijbNcLsDt","tool":"Grep","input":{"pattern":"def main\\(","path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/core.py","output_mode":"content"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Un15eCp7aYr5C2mkg3y3vH","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01A98r98B1f5fUxijbNcLsDt","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01AScQuvWy8sfPfPGC5oF7vQ","tool":"Read","input":{"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/core.py","offset":1410,"limit":180}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01AScQuvWy8sfPfPGC5oF7vQ","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01DEFzqEFHdJcdDZvsqzdcya","tool":"Grep","input":{"pattern":"KeyboardInterrupt|Abort","path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click","output_mode":"content","-n":true}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01DEFzqEFHdJcdDZvsqzdcya","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_016XozD6crfbSTmbM3mDXg1b","tool":"Bash","input":{"command":"grep -n \"3802\\|Ctrl-C\\|interrupt\" CHANGES.rst | head -20; git log --oneline | head -5"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_016XozD6crfbSTmbM3mDXg1b","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01MfruKEk38p4gRZ9GqWDka6","tool":"Read","input":{"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/_termui_impl.py","offset":545,"limit":70}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01MfruKEk38p4gRZ9GqWDka6","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01BLfQzcWPqmAEbAr23zJy45","tool":"Bash","input":{"command":"ls; ls docs 2>/dev/null | head -30; sed -n 1,40p CHANGES.md 2>/dev/null"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01BLfQzcWPqmAEbAr23zJy45","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01EH6adDe9raid6Nqwj7HYtV","tool":"Bash","input":{"command":"sed -n 1,75p src/click/core.py; grep -n \"^def \\|^class \" src/click/core.py | head -30"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01EH6adDe9raid6Nqwj7HYtV","text":""}]},{"role":"assistant","text":"Working on issue 2. I've read `Command.main` and I'm now adding guards so a second Ctrl-C can't replace the exit code.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_015YspwLCcHAM6sMJ7WP8T7q","tool":"Edit","input":{"replace_all":false,"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/core.py","old_string":"from contextlib import ExitStack\nfrom functools import update_wrapper","new_string":"from contextlib import ExitStack\nfrom contextlib import suppress\nfrom functools import update_wrapper"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_015YspwLCcHAM6sMJ7WP8T7q","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_013H7h7PQgdCbzsnpyfe6YKj","tool":"Edit","input":{"replace_all":false,"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/core.py","old_string":"def batch(iterable: cabc.Iterable[V], batch_size: int) -> list[tuple[V, ...]]:","new_string":"def _exit(code: int) -> t.NoReturn:\n \"\"\"Exit with ``code``, even if Ctrl-C arrives while the exit is\n propagating. By then the outcome is decided, so an interrupt must not\n replace it.\n \"\"\"\n while True:\n try:\n sys.exit(code)\n except KeyboardInterrupt:\n pass\n\n\ndef _exit_aborted() -> t.NoReturn:\n \"\"\"Report an abort and exit with code 1. The message is best effort:\n a late Ctrl-C may lose it, but not the exit code.\n \"\"\"\n with suppress(KeyboardInterrupt):\n echo(_(\"Aborted!\"), file=sys.stderr)\n\n _exit(1)\n\n\ndef batch(iterable: cabc.Iterable[V], batch_size: int) -> list[tuple[V, ...]]:"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_013H7h7PQgdCbzsnpyfe6YKj","text":""}]},{"role":"assistant","text":"Now `Command.main` itself.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01SKv51rC2wmfdwVt2mBTZgH","tool":"Edit","input":{"replace_all":false,"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/core.py","old_string":" except (EOFError, KeyboardInterrupt) as e:\n echo(file=sys.stderr)\n raise Abort() from e\n except ClickException as e:\n if not standalone_mode:\n raise\n e.show()\n sys.exit(e.exit_code)\n except OSError as e:\n if e.errno == errno.EPIPE:\n sys.stdout = t.cast(t.TextIO, _PacifyFlushWrapper(sys.stdout))\n sys.stderr = t.cast(t.TextIO, _PacifyFlushWrapper(sys.stderr))\n sys.exit(1)\n else:\n raise\n except Exit as e:\n if standalone_mode:\n sys.exit(e.exit_code)\n else:","new_string":" except (EOFError, KeyboardInterrupt) as e:\n if not standalone_mode:\n echo(file=sys.stderr)\n raise Abort() from e\n\n with suppress(KeyboardInterrupt):\n echo(file=sys.stderr)\n\n _exit_aborted()\n except ClickException as e:\n if not standalone_mode:\n raise\n\n with suppress(KeyboardInterrupt):\n e.show()\n\n _exit(e.exit_code)\n except OSError as e:\n if e.errno == errno.EPIPE:\n sys.stdout = t.cast(t.TextIO, _PacifyFlushWrapper(sys.stdout))\n sys.stderr = t.cast(t.TextIO, _PacifyFlushWrapper(sys.stderr))\n _exit(1)\n else:\n raise\n except Exit as e:\n if standalone_mode:\n _exit(e.exit_code)\n else:"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01SKv51rC2wmfdwVt2mBTZgH","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Xi2KCPLBLycjH8So32p7in","tool":"Edit","input":{"replace_all":false,"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/core.py","old_string":" if not standalone_mode:\n raise\n echo(_(\"Aborted!\"), file=sys.stderr)\n sys.exit(1)","new_string":" if not standalone_mode:\n raise\n\n _exit_aborted()"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Xi2KCPLBLycjH8So32p7in","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01JcMLgZdJx1aCq65bgecfCi","tool":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_abort_interrupt.py -q 2>&1 | tail -15\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\n.venv/bin/python -m pytest -q 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/after2.txt\necho \"--- newly failing vs issue-1 state:\"; comm -13 $S/after.txt $S/after2.txt\necho \"--- newly passing:\"; comm -23 $S/after.txt $S/after2.txt\nwc -l < $S/after2.txt"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01JcMLgZdJx1aCq65bgecfCi","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01JjJFgiK5ktfihC2fK99nP5","tool":"Bash","input":{"command":"(.venv/bin/python -m ruff check src/click/core.py 2>&1 || true) | tail -5; (.venv/bin/python -m mypy src/click/core.py 2>&1 || true) | tail -3; git diff --stat"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01JjJFgiK5ktfihC2fK99nP5","text":""}]},{"role":"assistant","text":"Issue 2 is fixed. All three named tests pass, including every parametrization of `test_interrupt_while_reporting_abort`, and no test that passed before now fails. The full suite is down from 84 failures to 79.\n\n**Cause:** in `Command.main` (`src/click/core.py`), the abort message, the error report and the final exit each ran inside an `except` clause, so a second Ctrl-C landing there had no handler. That includes `echo(...)` (which calls `isatty()`), `e.show()` and `sys.exit(...)`.\n\n**Fix:** in standalone mode, the exit code that was already decided now wins over a late Ctrl-C, and the message is best effort.\n- **Exit:** a new `_exit(code)` helper retries `sys.exit(code)` if a `KeyboardInterrupt` arrives during it. It loops rather than retrying once, so repeated Ctrl-C can't get through either. This covers success, `ClickException`, `Exit`, `Abort` and the EPIPE path.\n- **Abort message:** a new `_exit_aborted()` helper writes `Aborted!` and exits 1. An interrupt during the write loses the message but not the exit code. The `Aborted!` text is unchanged.\n- **Blank line and `e.show()`:** both are wrapped in `suppress(KeyboardInterrupt)`.\n- **Standalone abort path:** it now exits directly instead of raising `Abort()` and relying on the outer handler.\n- **Non-standalone mode:** it is unchanged. The first interrupt still reaches the caller as `Abort`, and a late one propagates as `KeyboardInterrupt`, which `test_late_interrupt_with_disabled_standalone_mode` covers.\n\n`CHANGES.md` already had an entry for this issue (#3802), so I left it alone. Ruff and mypy aren't installed in the venv, so I couldn't run them on the change.\n\nReady for issue 3.","toolUses":[]},{"role":"user","text":"Issue 3 of 20. Bug report.\n\nAn optional `Choice` or `DateTime` argument is shown with doubled brackets in the usage synopsis.\n\nFailing:\n tests/test_basic.py::test_choice_argument_optional_metavar\n tests/test_basic.py::test_datetime_argument_optional_metavar","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01E3KYLMvdhuyM4Wec2NNbXn","tool":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_basic.py -q -k \"optional_metavar\" 2>&1 | tail -40; grep -n \"optional_metavar\" -B3 -A22 tests/test_basic.py | head -80"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01ELpRAR6ntY54XaXPwqjqMM","tool":"Grep","input":{"pattern":"def make_metavar","path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click","output_mode":"content","-n":true,"-A":25}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01E3KYLMvdhuyM4Wec2NNbXn","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01ELpRAR6ntY54XaXPwqjqMM","text":""}]},{"role":"assistant","text":"Now the types' `get_metavar` implementations, so I can see where the brackets come from.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01J7JkNyyxJnxTbHZ8vf29iK","tool":"Bash","input":{"command":"grep -n \"def get_metavar\" -A32 src/click/types.py | head -150; sed -n 640,650p tests/test_basic.py; sed -n 672,676p tests/test_basic.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01J7JkNyyxJnxTbHZ8vf29iK","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01R1JbtLYtMaZ2Sy9RX3DpaY","tool":"Bash","input":{"command":"grep -rn \"get_metavar\\|make_metavar\" src tests docs --include=*.py --include=*.md | grep -v \"^src/click/core.py.*def \\|^src/click/types.py.*def \""}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01R1JbtLYtMaZ2Sy9RX3DpaY","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01SybdBeNPJvoNG4ajZ4o4Bj","tool":"Bash","input":{"command":"grep -rn \"DateTime\" tests | grep -i \"argument\\|metavar\\|usage\" | head; sed -n 500,530p src/click/types.py; grep -n \"8.5.1\" -A12 CHANGES.md | head -20"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01SybdBeNPJvoNG4ajZ4o4Bj","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Hr3YBSfqCTv8WcNo1qYoN9","tool":"Grep","input":{"pattern":"get_metavar|make_metavar","path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet","glob":"!.venv/**","output_mode":"content","-n":true}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Hr3YBSfqCTv8WcNo1qYoN9","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01EFqtU1H1VRHAoGZg2ZEWSu","tool":"Bash","input":{"command":"sed -n 300,345p tests/test_formatting.py; sed -n 25,75p docs/support-multiple-versions.md"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01EFqtU1H1VRHAoGZg2ZEWSu","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01GNC2RmnzhCcZHucBitq34p","tool":"Bash","input":{"command":"grep -rn '!\\]\\|!\"' tests/*.py tests/**/*.py | grep -i \"usage\\|\\[\\|deprec\" | head -20; sed -n 3650,3675p src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01GNC2RmnzhCcZHucBitq34p","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01MJH3ZDjhB1GGroREacAKBc","tool":"Bash","input":{"command":"sed -n 1,30p CHANGES.md | grep -n -i \"bracket\\|metavar\\|choice\"; git diff HEAD --stat -- CHANGES.md"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01MJH3ZDjhB1GGroREacAKBc","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Dh1Xo5BkjxqS1kCcCCMWvt","tool":"Edit","input":{"replace_all":false,"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/core.py","old_string":" var = self.type.get_metavar(param=self, ctx=ctx)\n if not var:\n var = self.name.upper()\n if self.deprecated:\n var += \"!\"\n if not self.required:\n var = f\"[{var}]\"","new_string":" var = self.type.get_metavar(param=self, ctx=ctx)\n if not var:\n var = self.name.upper()\n # Types like Choice and DateTime already wrap their metavar in square\n # brackets. Reuse them for an optional argument instead of doubling.\n if not self.required and _is_bracketed(var):\n var = var[1:-1]\n if self.deprecated:\n var += \"!\"\n if not self.required:\n var = f\"[{var}]\""}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Dh1Xo5BkjxqS1kCcCCMWvt","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01VJhQPLs3gQRssuFGDuZfMG","tool":"Edit","input":{"replace_all":false,"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/core.py","old_string":"def batch(iterable: cabc.Iterable[V], batch_size: int) -> list[tuple[V, ...]]:","new_string":"def _is_bracketed(value: str) -> bool:\n \"\"\"Whether a single pair of square brackets encloses all of ``value``.\n ``[a]|[b]`` is not enclosed, ``[a|[b]]`` is.\n \"\"\"\n depth = 0\n\n for i, char in enumerate(value):\n if char == \"[\":\n depth += 1\n elif char == \"]\":\n depth -= 1\n\n if depth == 0:\n return i == len(value) - 1\n elif depth == 0:\n return False\n\n return False\n\n\ndef batch(iterable: cabc.Iterable[V], batch_size: int) -> list[tuple[V, ...]]:"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01VJhQPLs3gQRssuFGDuZfMG","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01HUbhhwRxrTBKYDCbBQyzqc","tool":"Edit","input":{"replace_all":false,"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/CHANGES.md","old_string":"- Add {meth}`Option.get_help_spec`, which returns the option's left help","new_string":"- An optional {class}`Argument` with a {class}`Choice` or {class}`DateTime` type is\n shown as `[a|b]` in the usage line, not `[[a|b]]`. The type's brackets are\n reused, so `nargs=-1` shows `[a|b]...`.\n- Add {meth}`Option.get_help_spec`, which returns the option's left help"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01HUbhhwRxrTBKYDCbBQyzqc","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_0193sbkErYjHenFr7yg2sLMf","tool":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_basic.py -q -k \"optional_metavar\" 2>&1 | tail -5\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\n.venv/bin/python -m pytest -q 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/after3.txt\necho \"--- newly failing:\"; comm -13 $S/after2.txt $S/after3.txt\necho \"--- newly passing:\"; comm -23 $S/after2.txt $S/after3.txt\nwc -l < $S/after3.txt\n.venv/bin/python - <<'EOF'\nimport click\nfrom click.core import _is_bracketed\nfor v in [\"[a|b]\", \"[a]|[b]\", \"[a|[b]]\", \"a\", \"\", \"[a]!\", \"[\", \"]\"]:\n print(repr(v), _is_bracketed(v))\n\n@click.command()\n@click.argument(\"m\", type=click.Choice([\"foo\",\"bar\"]), required=False, deprecated=True)\n@click.argument(\"n\", type=click.Choice([\"x\",\"y\"]))\ndef cli(m, n): pass\ncli.main([\"--help\"], standalone_mode=False)\nEOF"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_0193sbkErYjHenFr7yg2sLMf","text":""}]},{"role":"assistant","text":"Issue 3 is fixed. Both named tests pass, and no test that passed before now fails. The full suite is down from 79 failures to 77.\n\n**Cause:** `Choice.get_metavar` and `DateTime.get_metavar` already return their choices or formats wrapped in `[...]`. For an optional argument (`required=False`, or `nargs=-1`, which is optional by default), `Argument.make_metavar` in `src/click/core.py` then added a second pair, giving `[[foo|bar|baz]]`.\n\n**Fix:** for an optional argument, `Argument.make_metavar` now strips the type's own outer brackets before adding its own, so there is only one pair.\n- **Usage lines:** optional shows `[foo|bar|baz]` and variadic shows `[foo|bar|baz]...`.\n- **Enclosing check:** it only strips when one pair of brackets encloses the whole metavar. `[a]|[b]` and `[KEY]=[VALUE]` from a custom type are left alone, because a plain start/end check would misread them.\n- **Deprecated arguments:** the `!` marker goes inside the brackets, as `[foo|bar!]`, matching the existing `[F!]` form. A deprecated optional `Choice` argument used to render as `[[foo|bar]!]`.\n- **Not touched:** required `Choice` arguments still use `{a|b}`. A required `DateTime` argument still shows its own `[...]`, which reads as optional but isn't part of this issue. Options are also unchanged.\n\nI added a `CHANGES.md` entry under 8.5.1, since this issue had none pre-written (issue 2's did).\n\nReady for issue 4.","toolUses":[]},{"role":"user","text":"Issue 4 of 20. Feature request.\n\n**Support pathlib.Path in edit filename** (upstream #2869)\n\n`click.edit(filename=some_path)` with a `pathlib.Path` is rejected by the type checker -- `filename` is typed `str | None` -- and the workaround is `click.edit(filename=str(path))`. It would be nice not to need the `str`. It should actually work at runtime too, not only type-check.\n\nFailing:\n tests/test_termui.py::test_edit_pathlib","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01WycUN6RafrAdLdKKrqsenb","tool":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_termui.py -q -k \"test_edit_pathlib\" 2>&1 | tail -40; grep -n \"test_edit_pathlib\" -B6 -A30 tests/test_termui.py"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01PnpssABFCHQFziXzCftF7b","tool":"Grep","input":{"pattern":"def edit\\(|class Editor|def edit_files|def edit\\b","path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click","output_mode":"content","-n":true}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01WycUN6RafrAdLdKKrqsenb","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01PnpssABFCHQFziXzCftF7b","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_011WT8NztjjR5KF3DAuepUwC","tool":"Read","input":{"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/termui.py","offset":795,"limit":115}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_011WT8NztjjR5KF3DAuepUwC","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01JTX47FPsju1YHkGoGtJfsy","tool":"Read","input":{"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/_termui_impl.py","offset":625,"limit":130}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01JTX47FPsju1YHkGoGtJfsy","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_014UfAq8uoNz3dfEDCqHMhhU","tool":"Bash","input":{"command":"sed -n 1,40p src/click/termui.py; grep -n \"edit_files\" -r src tests | head"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_014UfAq8uoNz3dfEDCqHMhhU","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_015PWu9nRV5hrYv84onPJywC","tool":"Bash","input":{"command":"python3 - <<'EOF'\nimport re\np = \"src/click/termui.py\"\ns = open(p).read()\n\ns = s.replace(\"import itertools\\nimport re\\n\", \"import itertools\\nimport os\\nimport re\\n\", 1)\n\nold_ann = \" filename: str | cabc.Iterable[str] | None = None,\\n\"\nnew_ann = (\n \" filename: str\\n\"\n \" | os.PathLike[str]\\n\"\n \" | cabc.Iterable[str | os.PathLike[str]]\\n\"\n \" | None = None,\\n\"\n)\nassert s.count(old_ann) == 2\ns = s.replace(old_ann, new_ann)\n\ns = s.replace(\n\"\"\" :param filename: if provided it will edit this file instead of the\n provided text contents. It will not use a temporary\n file as an indirection in that case. If the editor supports\n editing multiple files at once, a sequence of files may be\n passed as well. Invoke `click.file` once per file instead\n if multiple files cannot be managed at once or editing the\n files serially is desired.\n\n .. versionchanged:: 8.2.0\n\"\"\",\n\"\"\" :param filename: if provided it will edit this file instead of the\n provided text contents. It will not use a temporary\n file as an indirection in that case. If the editor supports\n editing multiple files at once, a sequence of files may be\n passed as well. Invoke `click.file` once per file instead\n if multiple files cannot be managed at once or editing the\n files serially is desired.\n\n .. versionchanged:: 8.5.1\n ``filename`` accepts :class:`os.PathLike` values, such as\n :class:`pathlib.Path`, alone or in a sequence.\n\n .. versionchanged:: 8.2.0\n\"\"\", 1)\n\ns = s.replace(\n\"\"\" if isinstance(filename, str):\n filename = (filename,)\n\n ed.edit_files(filenames=filename)\"\"\",\n\"\"\" if isinstance(filename, (str, os.PathLike)):\n filename = (filename,)\n\n ed.edit_files(filenames=filename)\"\"\", 1)\nopen(p, \"w\").write(s)\n\np = \"src/click/_termui_impl.py\"\ns = open(p).read()\ns = s.replace(\n\" def edit_files(self, filenames: cabc.Iterable[str]) -> None:\",\n\" def edit_files(\\n self, filenames: cabc.Iterable[str | os.PathLike[str]]\\n ) -> None:\", 1)\ns = s.replace(\n\" args=shlex.split(editor) + list(filenames),\",\n\" args=shlex.split(editor) + [os.fspath(f) for f in filenames],\", 1)\nopen(p, \"w\").write(s)\n\np = \"CHANGES.md\"\ns = open(p).read()\ns = s.replace(\n\"- Add {meth}`Option.get_help_spec`, which returns the option's left help\",\n\"- {func}`edit` accepts {class}`os.PathLike` values, such as {class}`pathlib.Path`,\\n for `filename`, alone or in a sequence. {issue}`2869`\\n- Add {meth}`Option.get_help_spec`, which returns the option's left help\", 1)\nopen(p, \"w\").write(s)\nEOF\ngit diff src/click/termui.py src/click/_termui_impl.py; grep -n \"^import os\" src/click/_termui_impl.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_015PWu9nRV5hrYv84onPJywC","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01MtwwYY94yxH9KSmtfeNduY","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/_termui_impl.py\"\ns = open(p).read()\ns = s.replace(\n\" def edit_files(\\n self, filenames: cabc.Iterable[str | os.PathLike[str]]\\n ) -> None:\",\n\" def edit_files(self, filenames: cabc.Iterable[str | os.PathLike[str]]) -> None:\", 1)\nopen(p, \"w\").write(s)\nEOF\ngrep -n \"line-length\" pyproject.toml; awk 'length > 88 {print FILENAME\": \"FNR\": \"length}' src/click/_termui_impl.py src/click/termui.py src/click/core.py | head\n.venv/bin/python -m pytest tests/test_termui.py -q -k \"edit\" 2>&1 | tail -4\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\n.venv/bin/python -m pytest -q 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/after4.txt\necho \"--- newly failing:\"; comm -13 $S/after3.txt $S/after4.txt\necho \"--- newly passing:\"; comm -23 $S/after3.txt $S/after4.txt\nwc -l < $S/after4.txt"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01MtwwYY94yxH9KSmtfeNduY","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01N5bnHMhTZFocBEdy8yudd4","tool":"Bash","input":{"command":"for i in 1 2 3 4 5 6; do .venv/bin/python -m pytest tests/test_commands.py -q -k test_get_help_option_names 2>&1 | tail -1; done; echo \"--- baseline (stash):\"; git stash -q; for i in 1 2 3 4 5 6; do .venv/bin/python -m pytest tests/test_commands.py -q -k test_get_help_option_names 2>&1 | tail -1; done; git stash pop -q; git status --short"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01An6iVLGfuEC4SCkqYyvLU5","tool":"Bash","input":{"command":"grep -n \"def test_get_help_option_names\" -B30 -A25 tests/test_commands.py | head -90"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01N5bnHMhTZFocBEdy8yudd4","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01An6iVLGfuEC4SCkqYyvLU5","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01CZj9vcujaH5fCcDGsPexzj","tool":"Bash","input":{"command":"S=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nrun() { PYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort; }\ngit stash -q; run > $S/base0.txt; git stash pop -q\nrun > $S/now0.txt\nwc -l < $S/base0.txt; wc -l < $S/now0.txt\necho \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now0.txt\necho \"--- fixed so far:\"; comm -23 $S/base0.txt $S/now0.txt"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01CZj9vcujaH5fCcDGsPexzj","text":""}]},{"role":"assistant","text":"Issue 4 is fixed. `tests/test_termui.py::test_edit_pathlib` passes for both parametrizations, and no test that passed before now fails.\n\nWith a fixed `PYTHONHASHSEED`, the suite is at 77 failures against 86 at the start. Nothing is newly failing, and the difference is exactly the fixes from issues 1–4.\n\n**Cause:** `click.edit()` only wrapped a `str` filename into a one-item tuple. A `Path` fell through to `Editor.edit_files`, which called `list(filenames)` on it and raised `TypeError: 'PosixPath' object is not iterable`. The type annotations also rejected `Path`, as the issue said.\n\n**Fix:**\n- **`src/click/termui.py`:** `edit()` wraps `str` and `os.PathLike` alike. The `filename` annotation on the overload and the implementation is now `str | os.PathLike[str] | Iterable[str | os.PathLike[str]] | None`. I also added a `versionchanged:: 8.5.1` note to the docstring.\n- **`src/click/_termui_impl.py`:** `Editor.edit_files` converts each entry with `os.fspath()` before building the editor command line. A list of `Path`s already ran on POSIX, but this makes it explicit and consistent.\n- **`CHANGES.md`:** I added an entry under 8.5.1, with the issue number 2869 from your report.\n\n**Flaky tests:** `tests/test_commands.py::test_get_help_option_names[...]` fails 2–5 of its 13 cases from run to run, with or without my changes. It depends on hash seed and looks like another open issue about stable ordering. It made my first diff look like a regression, so I'll compare with a fixed seed from now on.\n\nReady for issue 5.","toolUses":[]},{"role":"user","text":"Issue 5 of 20. Bug report.\n\n**help not resolving automatically** (upstream #2819)\n\nThe docs say the help parameter performs automatic conflict resolution: if a command itself implements a parameter with the same name, the default help parameter stops accepting it. That does not happen when a command has an argument or option named `help` -- parsing goes wrong. Click should also warn when an argument's name collides with another parameter.\n\nFailing:\n tests/test_basic.py::test_param_named_help\n tests/test_basic.py::test_param_squatting_help_option_name\n tests/test_info_dict.py::test_command\n tests/test_info_dict.py::test_context\n tests/test_options.py::test_argument_sharing_param_name_warning","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01HixMAxvBPb7TYhq7h3KkP2","tool":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_basic.py tests/test_info_dict.py tests/test_options.py -q -k \"test_param_named_help or test_param_squatting_help_option_name or test_command or test_context or test_argument_sharing_param_name_warning\" -p no:randomly 2>&1 | grep -v \"^ \" | head -150"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01HixMAxvBPb7TYhq7h3KkP2","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01XfncLmLbQCbgbnf1GngYuk","tool":"Bash","input":{"command":"sed -n 1,130p tests/test_basic.py; sed -n 3400,3470p tests/test_options.py; grep -n \"_click_default_help\" -r tests | head -20"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01XfncLmLbQCbgbnf1GngYuk","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01FbyWwLxrFSYuoikysEPNoV","tool":"Grep","input":{"pattern":"def get_help_option|def get_help_option_names|help_option|_help_option","path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click","output_mode":"content","-n":true,"glob":"*.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01FbyWwLxrFSYuoikysEPNoV","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01VtRn5NZpJnbFphRhdvGQfk","tool":"Read","input":{"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/core.py","offset":1120,"limit":130}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01VtRn5NZpJnbFphRhdvGQfk","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01BwhKjaD19pnuow73LR2eiz","tool":"Read","input":{"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/decorators.py","offset":535,"limit":70}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01BwhKjaD19pnuow73LR2eiz","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01JZWz6cNYupJn5YEMRXy3nm","tool":"Bash","input":{"command":"grep -n \"used more than once\" -B30 -A10 src/click/core.py | head -120; sed -n 1,60p tests/test_info_dict.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01JZWz6cNYupJn5YEMRXy3nm","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01JranyueEhT1g7smnoWUcwu","tool":"Bash","input":{"command":"grep -n '\"help\"' src/click/*.py | head -20; grep -n \"filterwarnings\" -A6 pyproject.toml; grep -rn \"help_option_names\\|automatic conflict\\|conflict resolution\" docs/*.md | head"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01JranyueEhT1g7smnoWUcwu","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_016oDC6qoXZMUpUJ3hvxhVZZ","tool":"Bash","input":{"command":"grep -n \"def _parse_decls\" -A50 src/click/core.py | sed -n '/class Option/,$p' | head -5; awk 'NR>=3140 && NR<=3260 && /_parse_decls/ {print NR\": \"$0}' src/click/core.py; grep -n \"Name defined twice\" -B25 src/click/core.py | head -70"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_016oDC6qoXZMUpUJ3hvxhVZZ","text":""}]},{"role":"assistant","text":"I'm on issue 5, working out how the automatic help option gets its name from `Option._parse_decls`.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01U8L3YXCHYM2pvruSjwQoek","tool":"Read","input":{"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/core.py","offset":3188,"limit":70}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01U8L3YXCHYM2pvruSjwQoek","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01GYhApmW7RVNJ9FjGnM78D5","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/core.py\"\ns = open(p).read()\n\n# 1. Reserved storage name for the automatic help option.\nold = '''def _exit(code: int) -> t.NoReturn:'''\nnew = '''# The name the automatic help option stores its value under. It is not a valid\n# choice for a user parameter, so a parameter named ``help`` cannot clash with it.\n_HELP_OPTION_NAME = \"_click_default_help\"\n\n\ndef _exit(code: int) -> t.NoReturn:'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = ''' # Apply help_option decorator and pop resulting option\n help_option(*help_option_names)(self)'''\nnew = ''' # Apply help_option decorator and pop resulting option. The value\n # is stored under a reserved name so that a parameter named \"help\"\n # does not share it.\n help_option(*help_option_names, _HELP_OPTION_NAME)(self)'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\n# 2. Warn on shared names.\nold = ''' stacklevel=3,\n )\n\n return params\n'''\nnew = ''' stacklevel=3,\n )\n\n names = Counter(param.name for param in params if param.name)\n\n for name, count in names.items():\n if count < 2:\n continue\n\n if name == _HELP_OPTION_NAME:\n message = (\n f\"The parameter name {name!r} is reserved for the automatic\"\n \" help option. Rename the parameter.\"\n )\n elif any(\n param.name == name and param.param_type_name == \"argument\"\n for param in params\n ):\n message = (\n f\"The parameter name {name!r} is used by an argument and\"\n \" by another parameter, which overwrite each other's\"\n \" value. Rename one of them.\"\n )\n else:\n # Options may share a name on purpose, like the flags of a\n # feature switch.\n continue\n\n warnings.warn(message, stacklevel=3)\n\n return params\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\ngrep -n \"param_type_name\" src/click/core.py | head"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01GYhApmW7RVNJ9FjGnM78D5","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01RN12y4LyYX4hiJZMuft1Dh","tool":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_basic.py tests/test_info_dict.py tests/test_options.py -q -p no:randomly 2>&1 | tail -8\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now5.txt\nwc -l < $S/now5.txt\necho \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now5.txt\necho \"--- fixed this round:\"; comm -23 $S/now0.txt $S/now5.txt"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01RN12y4LyYX4hiJZMuft1Dh","text":""}]},{"role":"assistant","text":"All ten failing cases across the five named tests now pass, and nothing new fails. I'll add the changelog entry and check the behaviour end to end.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_0111JK5Fqp82gzAccz2j1NR9","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"CHANGES.md\"\ns = open(p).read()\nold = \"- Add {meth}`Option.get_help_spec`, which returns the option's left help\"\nnew = \"\"\"- The automatic help option stores its value under the reserved name\n `_click_default_help`, so an argument or option named `help` no longer breaks\n parsing. A warning is shown when a parameter claims that name, or when an\n argument shares its name with another parameter. {issue}`2819`\n\"\"\"\nassert s.count(old) == 1\ns = s.replace(old, new + old, 1)\nopen(p, \"w\").write(s)\nEOF\n.venv/bin/python - <<'EOF'\nimport warnings\nimport click\nfrom click.testing import CliRunner\n\n@click.command()\n@click.argument(\"help\")\ndef cli(help):\n click.echo(f\"got {help}\")\n\nr = CliRunner()\nprint(repr(r.invoke(cli, [\"value\"]).output))\nprint(r.invoke(cli, [\"--help\"]).output)\nEOF"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_0111JK5Fqp82gzAccz2j1NR9","text":""}]},{"role":"assistant","text":"Issue 5 is fixed. All five named tests pass (the ten failing cases, counting parametrizations), and nothing that passed before now fails. With a fixed `PYTHONHASHSEED`, the suite is down to 67 failures from 86 at the start.\n\n**Cause:** the automatic `--help` option took its storage name from its flag, so it was called `help`. A parameter named `help` therefore shared the same slot in the parser. The argument's value went into the eager help option, which tried to read it as a boolean and broke parsing.\n\n**Fix (`src/click/core.py`):**\n- **Reserved name:** `get_help_option` now creates the option with the reserved name `_click_default_help`, passed as an extra declaration. `click.argument(\"help\")` and `click.option(\"--assist\", \"help\")` no longer clash, and `--help` keeps working, as I checked by hand. This is also the name `to_info_dict` reports, which fixes the `test_info_dict` failures.\n- **Squatting warning:** `get_params` warns when a user parameter claims `_click_default_help` while the help option is active. If `add_help_option=False`, or a user option took over `--help`, the name isn't reserved and doesn't warn.\n- **Shared-name warning:** it warns when an argument shares its name with any other parameter. Options sharing a name (feature switches) are still exempt.\n- **One warning per case:** the squatting case gives only the \"reserved\" warning, because the suite turns warnings into errors and pytest re-emits unmatched ones.\n- **Debug-only:** both warnings are in the existing `__debug__` block, next to the duplicate-flag warning.\n\n`docs/documentation.md` already described this behaviour, so I only added a `CHANGES.md` entry under 8.5.1 with the issue number 2819.\n\nReady for issue 6.","toolUses":[]},{"role":"user","text":"Issue 6 of 20. Bug report.\n\nThe shell completion source scripts come out with platform line endings. They have to use LF everywhere, or the shells reject them.\n\nFailing:\n tests/test_shell_completion.py::test_source_uses_lf_line_endings","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01P7zGTrucG6zprvrQT8t8My","tool":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_shell_completion.py -q -k test_source_uses_lf_line_endings -p no:randomly 2>&1 | tail -30; grep -n \"def test_source_uses_lf_line_endings\" -B10 -A30 tests/test_shell_completion.py"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01AupfPq1q7nUbaMNhHPFACG","tool":"Bash","input":{"command":"grep -n \"echo\\|write\\|newline\\|\\\\\\\\r\\|def shell_complete\\|def source\\|def _source\\|sys.stdout\" src/click/shell_completion.py | head -60"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01P7zGTrucG6zprvrQT8t8My","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01AupfPq1q7nUbaMNhHPFACG","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01PDFrFeXQYSxN5PSsVmqhXe","tool":"Bash","input":{"command":"sed -n 1,60p src/click/shell_completion.py; sed -n 395,440p src/click/shell_completion.py; grep -n \"_default_text_stdout\\|def _make_text_stream\\|def get_text_stream\\|def _find_binary_writer\" src/click/*.py | head -20"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01PDFrFeXQYSxN5PSsVmqhXe","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_0152Ndwy1KLwYyfLPzcvAaPA","tool":"Bash","input":{"command":"sed -n 1,30p src/click/utils.py; sed -n 186,230p src/click/_compat.py; grep -n \"^def _detect_program_name\\|^def _expand_args\\|^def _make_default_short_help\" src/click/utils.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_0152Ndwy1KLwYyfLPzcvAaPA","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01UvvLnyCCbT5BoLiZRcctKg","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/utils.py\"\ns = open(p).read()\nold = ''' file.write(out) # type: ignore\n file.flush()\n\n\ndef _get_binary_stream('''\nnew = ''' file.write(out) # type: ignore\n file.flush()\n\n\ndef _echo_lf(message: str) -> None:\n \"\"\"Like ``echo(message)``, but every line ends with ``\\\\\\\\n``, even where\n the stream would translate it to the platform line ending. A shell rejects\n a script with ``\\\\\\\\r\\\\\\\\n`` line endings, so a script written to a Windows\n file or pipe needs this.\n\n The message is encoded and written to the underlying binary stream, using\n the text stream's encoding. A stream without one gets the text as usual.\n \"\"\"\n file = _default_text_stdout()\n\n if file is not None and _find_binary_writer(file) is not None:\n encoding = getattr(file, \"encoding\", None) or \"utf-8\"\n errors = getattr(file, \"errors\", None) or \"strict\"\n echo(message.encode(encoding, errors), file=file)\n else:\n echo(message, file=file)\n\n\ndef _get_binary_stream('''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\n\np = \"src/click/shell_completion.py\"\ns = open(p).read()\ns = s.replace(\"from .utils import echo\\n\", \"from .utils import _echo_lf\\nfrom .utils import echo\\n\", 1)\nold = ''' if instruction == \"source\":\n echo(comp.source())\n return 0\n'''\nnew = ''' if instruction == \"source\":\n _echo_lf(comp.source())\n return 0\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\n\np = \"CHANGES.md\"\ns = open(p).read()\nold = \"- Add {meth}`Option.get_help_spec`, which returns the option's left help\"\nnew = \"\"\"- Shell completion source scripts always use `\\\\n` line endings. Redirecting one to a\n file on Windows no longer turns them into `\\\\r\\\\n`, which shells reject.\n\"\"\"\nassert s.count(old) == 1\ns = s.replace(old, new + old, 1)\nopen(p, \"w\").write(s)\nEOF\nsed -n '/^def _echo_lf/,/^def _get_binary_stream/p' src/click/utils.py; git diff CHANGES.md | tail -12"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01UvvLnyCCbT5BoLiZRcctKg","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_014xiG7Z5rhrgmxttYzXbZam","tool":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_shell_completion.py -q -p no:randomly 2>&1 | tail -4\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now6.txt\nwc -l < $S/now6.txt\necho \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now6.txt\necho \"--- fixed this round:\"; comm -23 $S/now5.txt $S/now6.txt\n# real-world checks: piped stdout, StringIO fallback\n.venv/bin/python - <<'EOF'\nimport io, contextlib, subprocess, sys\nimport click\nfrom click.shell_completion import shell_complete\n\ncli = click.Group(\"cli\", commands=[click.Command(\"a\")])\nbuf = io.StringIO()\nwith contextlib.redirect_stdout(buf):\n shell_complete(cli, {}, \"cli\", \"_CLI_COMPLETE\", \"bash_source\")\nprint(\"StringIO fallback ok:\", buf.getvalue().startswith(\"_cli_completion\"))\nout = subprocess.run([sys.executable, \"-c\",\n \"import click;from click.shell_completion import shell_complete;shell_complete(click.Group('cli'),{}, 'cli','_C','zsh_source')\"],\n capture_output=True).stdout\nprint(\"piped stdout LF only:\", b\"\\r\" not in out, len(out))\nEOF"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_014xiG7Z5rhrgmxttYzXbZam","text":""}]},{"role":"assistant","text":"Issue 6 is fixed. `tests/test_shell_completion.py::test_source_uses_lf_line_endings` passes, and nothing that passed before now fails. With a fixed `PYTHONHASHSEED` the suite is down to 66 failures from 86 at the start.\n\n**Cause:** `shell_complete` printed the source script with `echo(comp.source())`, which writes through the text layer. A text stream opened with `newline=\"\\r\\n\"` turns every `\\n` into `\\r\\n` on write. That's the default on Windows when stdout is a file or pipe, and shells reject a script with those endings.\n\n**Fix:**\n- **`src/click/utils.py`:** a new private `_echo_lf(message)` encodes the script with the stream's own encoding and errors setting. It writes those bytes through `echo`'s existing binary path, so no translation happens. A stream with no binary layer, such as a `StringIO` under `redirect_stdout`, gets the text as before.\n- **`src/click/shell_completion.py`:** the `source` instruction now uses `_echo_lf`.\n- **Placement:** the helper lives in `utils.py` because the test patches `click.utils._default_text_stdout`, so it has to look the stream up there.\n\n**Checked by hand:** the output to a real pipe contains no `\\r`, and the `StringIO` fallback still works.\n\n**Left alone:** the `complete` instruction output. The issue is about source scripts, and the completion protocol output isn't `\\r\\n`-sensitive in the same way.\n\nI added a `CHANGES.md` entry under 8.5.1.\n\nReady for issue 7.","toolUses":[]},{"role":"user","text":"Issue 7 of 20. Feature request.\n\nFeature request: a `custom_version_option` decorator, exported from `click`, for building a version option with custom behaviour -- so that `version_option` itself can stay as it is. The failing tests show the expected interface.\n\nFailing:\n tests/test_basic.py::test_custom_version_option\n tests/test_basic.py::test_custom_version_option_receives_context","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01G3qS9mV16Kd2zK8FD32hLo","tool":"Bash","input":{"command":"grep -n \"custom_version_option\" -r tests docs src CHANGES.md | grep -v \"\\.pyc\"; "}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01G3qS9mV16Kd2zK8FD32hLo","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01XUCn6MFccw2CccuCDa5JNP","tool":"Bash","input":{"command":"sed -n 395,545p src/click/decorators.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01XUCn6MFccw2CccuCDa5JNP","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01NgZetQMKFM27yAXqB5hqCB","tool":"Bash","input":{"command":"sed -n 925,975p tests/test_basic.py; sed -n 30,60p docs/api.md; sed -n 60,110p docs/option-decorators.md; sed -n 40,55p CHANGES.md; grep -n \"version_option\\|help_option\" src/click/__init__.py; sed -n 1,40p src/click/decorators.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01NgZetQMKFM27yAXqB5hqCB","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_016hKfUsUhw9V13Yt4idFtJY","tool":"Bash","input":{"command":"git diff CHANGES.md; echo ----; sed -n 50,75p CHANGES.md; grep -n \"2819\\|2869\\|3802\\|LF\\|line ending\\|bracket\\|PathLike\\|pathlib\" CHANGES.md | head -20"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_016hKfUsUhw9V13Yt4idFtJY","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01MgJ1tShhvkrv2seHLtcQyn","tool":"Bash","input":{"command":"grep -n -i \"completion\" CHANGES.md | head -20; sed -n 112,120p CHANGES.md; sed -n 138,142p CHANGES.md"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01MgJ1tShhvkrv2seHLtcQyn","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01PuajpszGCJK6RJRyezQeTn","tool":"Bash","input":{"command":"git checkout -- CHANGES.md && git status --short"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01PuajpszGCJK6RJRyezQeTn","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Cavdt5K7AX8AfDVAGGHa5e","tool":"Bash","input":{"command":"sed -n 10,40p src/click/__init__.py; grep -n \"custom_version_option\\|versionadded:: 8.5\" -r docs/*.md src/click/*.py | head"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Cavdt5K7AX8AfDVAGGHa5e","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01GKiBpWLXLcujGp85hdUkYA","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/__init__.py\"\ns = open(p).read()\nold = \"from .decorators import confirmation_option as confirmation_option\\n\"\nnew = old + \"from .decorators import custom_version_option as custom_version_option\\n\"\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\n\np = \"src/click/decorators.py\"\ns = open(p).read()\nold = '''def help_option(*param_decls: str, **kwargs: t.Any) -> t.Callable[[FC], FC]:'''\nnew = '''def custom_version_option(\n get_message: t.Callable[[Context], str],\n *param_decls: str,\n **kwargs: t.Any,\n) -> t.Callable[[FC], FC]:\n \"\"\"Add a ``--version`` option which immediately prints a message you\n produce and exits the program. Use it for output that\n :func:`version_option` does not support, such as the Python version\n or git metadata.\n\n :param get_message: Called with the current :class:`Context` when the\n option is used. Returns the text to show.\n :param param_decls: One or more option names. Defaults to the single\n value ``\"--version\"``.\n :param kwargs: Extra arguments are passed to :func:`option`.\n\n .. versionadded:: 8.5.0\n \"\"\"\n\n def callback(ctx: Context, param: Parameter, value: bool) -> None:\n if not value or ctx.resilient_parsing:\n return\n\n echo(get_message(ctx), color=ctx.color)\n ctx.exit()\n\n if not param_decls:\n param_decls = (\"--version\",)\n\n kwargs.setdefault(\"is_flag\", True)\n kwargs.setdefault(\"expose_value\", False)\n kwargs.setdefault(\"is_eager\", True)\n kwargs.setdefault(\"help\", _(\"Show the version and exit.\"))\n kwargs[\"callback\"] = callback\n return option(*param_decls, **kwargs)\n\n\ndef help_option(*param_decls: str, **kwargs: t.Any) -> t.Callable[[FC], FC]:'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\n.venv/bin/python -m pytest tests/test_basic.py -q -p no:randomly -k \"version_option\" 2>&1 | tail -4\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now7.txt\nwc -l < $S/now7.txt\necho \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now7.txt\necho \"--- fixed this round:\"; comm -23 $S/now6.txt $S/now7.txt"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01GKiBpWLXLcujGp85hdUkYA","text":""}]},{"role":"assistant","text":"Issue 7 is done. Both named tests pass, `test_custom_version_option` for `--version` and `-V` and `test_custom_version_option_receives_context`. Nothing that passed before now fails, and with a fixed `PYTHONHASHSEED` the suite is down to 63 failures from 86 at the start.\n\n**Feature:** `click.custom_version_option(get_message, *param_decls, **kwargs)` adds an option that calls `get_message(ctx)`, prints the returned string and exits.\n- **Message:** it is printed with `echo(..., color=ctx.color)`, the same as `version_option`.\n- **Defaults:** the option name defaults to `--version`, and it is an eager flag with `expose_value=False`, the same defaults as `version_option`.\n- **`resilient_parsing`:** it does nothing under `resilient_parsing`, so shell completion doesn't print.\n- **`version_option`:** unchanged.\n- **Code and docs:** it lives in `src/click/decorators.py`, is exported from `click/__init__.py`, and its docstring carries `versionadded:: 8.5.0`. `docs/api.md`, `docs/option-decorators.md` and `CHANGES.md` already referenced it.\n\n**Correction to earlier work:** the `CHANGES.md` entries I added for issues 3, 4, 5 and 6 duplicated ones the file already has in its released sections, so I reverted `CHANGES.md` to the committed version. Issue 2's entry was already there under 8.5.1. From now on I'll check the changelog before touching it.\n\nReady for issue 8.","toolUses":[]},{"role":"user","text":"Issue 8 of 20. Bug report.\n\n**Sentinel available in context during option callbacks** (upstream #3136)\n\nClick's internal `UNSET` sentinel is an implementation detail that is not meant to be exposed, but inside an option callback `ctx.params.get(...)` returns it for parameters that have not been given. A callback should see `None` there, not the sentinel.\n\nFailing:\n tests/test_context.py::test_hiding_of_unset_sentinel_in_callbacks","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01G2C49EXL8cvzd1UcVcLKP7","tool":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_context.py -q -p no:randomly -k test_hiding_of_unset_sentinel_in_callbacks 2>&1 | tail -40; grep -n \"def test_hiding_of_unset_sentinel_in_callbacks\" -B5 -A60 tests/test_context.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01G2C49EXL8cvzd1UcVcLKP7","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_017fxn1bytv4q49Y3uHrLJGP","tool":"Bash","input":{"command":"sed -n 244,300p tests/test_context.py; grep -n \"def process_value\\|def handle_parse_result\\|def type_cast_value\\|UNSET\" src/click/core.py | head -80"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_017fxn1bytv4q49Y3uHrLJGP","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01NCmiL2e9y9urvrWzJEVNF3","tool":"Bash","input":{"command":"sed -n 2395,2412p src/click/core.py; sed -n 2625,2680p src/click/core.py; sed -n 2715,2800p src/click/core.py; sed -n 1395,1425p src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01NCmiL2e9y9urvrWzJEVNF3","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_019dzhmmQgj34PydDHPQwaFZ","tool":"Bash","input":{"command":"grep -n \"\\.callback\\b\\|def process_value\" src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_019dzhmmQgj34PydDHPQwaFZ","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_017VpsEdPHzxWGirKHynNxTf","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/core.py\"\ns = open(p).read()\nold = ''' if self.callback is not None:\n # Legacy case: UNSET is not exposed directly to the callback, but converted\n # to None.\n if value is UNSET:\n value = None\n value = self.callback(ctx, self, value)\n\n return value\n'''\nnew = ''' if self.callback is not None:\n # Legacy case: UNSET is not exposed directly to the callback, but converted\n # to None. That goes for the values of the other parameters in\n # ``ctx.params`` too.\n if value is UNSET:\n value = None\n\n hidden = [name for name, other in ctx.params.items() if other is UNSET]\n\n for name in hidden:\n ctx.params[name] = None\n\n try:\n value = self.callback(ctx, self, value)\n finally:\n # Put the sentinel back, so it keeps treating the slot as missing,\n # unless the callback assigned a value or removed the entry.\n for name in hidden:\n if name in ctx.params and ctx.params[name] is None:\n ctx.params[name] = UNSET\n\n return value\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = ''' result of the callback. If the value was not set, the callback receive\n ``None``. This keep the legacy behavior as it was before the introduction of\n the :attr:`UNSET` sentinel.\n'''\nnew = ''' result of the callback. If the value was not set, the callback receive\n ``None``. This keep the legacy behavior as it was before the introduction of\n the :attr:`UNSET` sentinel. The same goes for the values of other\n parameters in :attr:`Context.params` while the callback runs.\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\n.venv/bin/python -m pytest tests/test_context.py -q -p no:randomly 2>&1 | tail -4\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now8.txt\nwc -l < $S/now8.txt\necho \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now8.txt\necho \"--- fixed this round:\"; comm -23 $S/now7.txt $S/now8.txt"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_017VpsEdPHzxWGirKHynNxTf","text":""}]},{"role":"assistant","text":"Issue 8 is fixed. `tests/test_context.py::test_hiding_of_unset_sentinel_in_callbacks` passes, and nothing that passed before now fails. With a fixed `PYTHONHASHSEED` the suite is down to 62 failures from 86 at the start.\n\n**Cause:** `Parameter.process_value` already turned the callback's own `UNSET` value into `None`. It did nothing about the other parameters in `ctx.params`, so `ctx.params.get(\"other\")` returned the sentinel for any parameter not yet given a value.\n\n**Fix (`src/click/core.py`, `process_value`):** while a callback runs, every `UNSET` entry in `ctx.params` is shown as `None`.\n- **Restore:** in a `finally`, entries the callback left as `None` are set back to `UNSET`. The parser still treats those slots as missing, for example when several options share a name.\n- **What the callback changed stays:** a value the callback assigned is kept, and so is an entry it removed.\n- **Exceptions:** if the callback raises, the sentinel is still restored.\n- **Outside callbacks:** nothing changes. `process_value` overrides and the main command see the same values as before, and the test pins that down.\n\nI updated the `process_value` docstring to say so. I didn't touch `CHANGES.md`, since it is easy to duplicate an entry that already exists there.\n\nReady for issue 9.","toolUses":[]},{"role":"user","text":"Issue 9 of 20. Bug report.\n\nThe progress bar does not land on its final position when it finishes -- the last render stops short.\n\nFailing:\n tests/test_termui.py::test_progressbar_lands_on_final_position","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01E6S1x8DQXNe5o8ZHasE9gK","tool":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_termui.py -q -p no:randomly -k test_progressbar_lands_on_final_position 2>&1 | grep -v \"^ \" | tail -40; grep -n \"def test_progressbar_lands_on_final_position\" -B25 -A30 tests/test_termui.py"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01BhkWNxKSJ8YFCCbzJa2Vpu","tool":"Bash","input":{"command":"sed -n 40,200p src/click/_termui_impl.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01E6S1x8DQXNe5o8ZHasE9gK","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01BhkWNxKSJ8YFCCbzJa2Vpu","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_017ZkmEkBdNa2K56xsyectUN","tool":"Bash","input":{"command":"sed -n 200,380p src/click/_termui_impl.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_017ZkmEkBdNa2K56xsyectUN","text":""}]},{"role":"assistant","text":"The cause is in `ProgressBar.update`. Steps are held back until `update_min_steps` is reached, so any remainder left at the end never gets applied to `pos`, and the bar freezes below its total.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01RpjWRVf4tccLTgnyeXTymL","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/_termui_impl.py\"\ns = open(p).read()\n\nold = ''' self._completed_intervals += n_steps\n\n if self._completed_intervals >= self.update_min_steps:\n self.make_step(self._completed_intervals)\n'''\nnew = ''' self._completed_intervals += n_steps\n\n # The last steps are always applied, so the bar lands on its total even\n # if ``update_min_steps`` does not divide the length, or exceeds it.\n reaches_end = (\n self.length is not None\n and self.pos + self._completed_intervals >= self.length\n )\n\n if self._completed_intervals >= self.update_min_steps or reaches_end:\n self.make_step(self._completed_intervals)\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = ''' def finish(self) -> None:\n self.eta_known = False\n'''\nnew = ''' def finish(self) -> None:\n # Apply the steps still held back by ``update_min_steps``, so the\n # position is not left behind. The length may be unknown.\n if self._completed_intervals:\n self.make_step(self._completed_intervals)\n self._completed_intervals = 0\n\n self.eta_known = False\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\n.venv/bin/python -m pytest tests/test_termui.py -q -p no:randomly -k \"progressbar\" 2>&1 | tail -6\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now9.txt\nwc -l < $S/now9.txt\necho \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now9.txt\necho \"--- fixed this round:\"; comm -23 $S/now8.txt $S/now9.txt"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01RpjWRVf4tccLTgnyeXTymL","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_013M1ZfXDoBHJiSuBTDzH5EN","tool":"Bash","input":{"command":".venv/bin/python - <<'EOF'\nimport io\nimport click, click._termui_impl as impl\nimpl.isatty = lambda _: True\n\ndef gen():\n yield from range(20)\n\nfor steps in (3, 7, 25):\n s = io.StringIO()\n with click.progressbar(gen(), show_pos=True, update_min_steps=steps, file=s) as bar: # no length\n for _ in bar: pass\n print(f\"unknown length, threshold {steps}: pos={bar.pos} finished={bar.finished} last render={s.getvalue().split(chr(13))[-1].strip()!r}\")\n\n# early exit from the loop must not claim completion\ns = io.StringIO()\nwith click.progressbar(range(20), show_pos=True, update_min_steps=7, file=s) as bar:\n for i in bar:\n if i == 9: break\nprint(\"break at 9:\", bar.pos, bar.finished)\nEOF"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_013M1ZfXDoBHJiSuBTDzH5EN","text":""}]},{"role":"assistant","text":"Issue 9 is fixed. All six cases of `tests/test_termui.py::test_progressbar_lands_on_final_position` pass, and nothing that passed before now fails. With a fixed `PYTHONHASHSEED` the suite is down to 56 failures from 86 at the start.\n\n**Cause:** `ProgressBar.update()` (`src/click/_termui_impl.py`) holds steps back until `update_min_steps` are pending. When the threshold didn't divide the length, the leftover steps were never applied, so `pos` stayed at 14 for a length of 20 and a threshold of 7. A threshold above the length meant `pos` stayed at 0, and the bar never showed the total.\n\n**Fix:**\n- **Known length:** `update()` also applies the pending steps once `pos + pending` reaches the length. The last step then always renders `20/20` and marks the bar finished.\n- **`finish()`:** it now applies any pending steps first. This covers iterables with no length, where `update()` can't see the end. I checked by hand that a generator with thresholds 3, 7 and 25 ends at `pos=20`.\n- **Unchanged:** breaking out of the loop early still reports the real position and doesn't claim completion, since the checks above only trigger on reaching the end.\n\nI left `CHANGES.md` alone. `tests/test_termui.py::test_progressbar_item_show_func` is a separate failure that predates my changes and is presumably a later issue.\n\nReady for issue 10.","toolUses":[]},{"role":"user","text":"Issue 10 of 20. Bug report.\n\nWhen a command's name is generated from its function name, a conventional suffix such as `_command` or `_group` should be dropped from it. It is kept instead. The failing tests show the exact rule.\n\nFailing:\n tests/test_command_decorators.py::test_generate_name\n tests/test_commands.py::test_other_command_invoke_with_defaults","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_018G47oPwDpmK5oYEzL3vBuv","tool":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_command_decorators.py tests/test_commands.py -q -p no:randomly -k \"test_generate_name or test_other_command_invoke_with_defaults\" 2>&1 | grep -v \"^ \" | tail -40; grep -n \"def test_generate_name\" -B3 -A40 tests/test_command_decorators.py"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_019QenBFcx4dEJsa47sKNx14","tool":"Bash","input":{"command":"grep -n \"def test_other_command_invoke_with_defaults\" -B3 -A30 tests/test_commands.py; grep -n \"_command\\|_group\\|replace(\\\"_\\\"\\|name = \" src/click/decorators.py | head -30"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_018G47oPwDpmK5oYEzL3vBuv","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_019QenBFcx4dEJsa47sKNx14","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_017GGzVMbrvX2VdtAWeP6Kst","tool":"Bash","input":{"command":"sed -n 60,95p tests/test_command_decorators.py; sed -n 120,260p src/click/decorators.py; grep -rn \"_cmd\\b\\|_command\\b\\|_group\\b\\|_grp\\b\\|suffix\" docs/*.md | head -20; grep -n \"suffix\\|_cmd\" CHANGES.md | head"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_017GGzVMbrvX2VdtAWeP6Kst","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01DzAVBnmQCbf5sSf23v3UJS","tool":"Bash","input":{"command":"sed -n 430,440p CHANGES.md; git log -3 --format=%H%n%s -- src/click/decorators.py | head; git log --all --oneline | head"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01DzAVBnmQCbf5sSf23v3UJS","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01CQAgYBoXVE5WRVPUTSkZMY","tool":"Bash","input":{"command":"awk 'NR<=436 && /^## Version/ {v=$0; n=NR} END{print n\": \"v}' CHANGES.md; sed -n 262,340p src/click/decorators.py | grep -n \"def group\\|command(\\|name\" | head -20"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01CQAgYBoXVE5WRVPUTSkZMY","text":""}]},{"role":"assistant","text":"`group()` goes through `command()`, so one change covers both. The changelog records this rule under 8.2.0: the suffixes `_command`, `_cmd`, `_group` and `_grp` are removed.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01TGb3p4RJPXWLPMatbdZ12k","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/decorators.py\"\ns = open(p).read()\n\nold = ''' cmd = cls(\n name=name or f.__name__.lower().replace(\"_\", \"-\"),\n callback=f,\n params=params,\n **attrs,\n )\n'''\nnew = ''' if name:\n cmd_name = name\n else:\n cmd_name = f.__name__.lower().replace(\"_\", \"-\")\n cmd_left, sep, suffix = cmd_name.rpartition(\"-\")\n\n if sep and suffix in {\"command\", \"cmd\", \"group\", \"grp\"}:\n cmd_name = cmd_left\n\n cmd = cls(name=cmd_name, callback=f, params=params, **attrs)\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = ''' The name of the command defaults to the name of the function with\n underscores replaced by dashes. If you want to change that, you can\n pass the intended name as the first argument.\n\n All keyword arguments are forwarded to the underlying command class.\n For the ``params`` argument, any decorated params are appended to\n the end of the list.\n\n Once decorated the function turns into a :class:`Command` instance\n that can be invoked as a command line utility or be attached to a\n command :class:`Group`.\n\n :param name: the name of the command. This defaults to the function\n name with underscores replaced by dashes.\n :param cls: the command class to instantiate. This defaults to\n :class:`Command`.\n\n .. versionchanged:: 8.1\n This decorator can be applied without parentheses.\n'''\nnew = ''' The name of the command defaults to the name of the function, in\n lowercase, with underscores replaced by dashes, and the suffixes\n ``_command``, ``_cmd``, ``_group``, and ``_grp`` removed. If you want\n to change that, you can pass the intended name as the first argument.\n\n All keyword arguments are forwarded to the underlying command class.\n For the ``params`` argument, any decorated params are appended to\n the end of the list.\n\n Once decorated the function turns into a :class:`Command` instance\n that can be invoked as a command line utility or be attached to a\n command :class:`Group`.\n\n :param name: the name of the command. This defaults to the function\n name with underscores replaced by dashes, and the suffixes\n removed.\n :param cls: the command class to instantiate. This defaults to\n :class:`Command`.\n\n .. versionchanged:: 8.2\n The suffixes ``_command``, ``_cmd``, ``_group``, and ``_grp`` are\n removed from a generated name.\n\n .. versionchanged:: 8.1\n This decorator can be applied without parentheses.\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\nsed -n '/^def group(/,/^ return command/p' src/click/decorators.py | sed -n '1,45p'"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01TGb3p4RJPXWLPMatbdZ12k","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Nb64QcuE4gQnZJTTUNjmzK","tool":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_command_decorators.py tests/test_commands.py -q -p no:randomly 2>&1 | tail -4\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now10.txt\nwc -l < $S/now10.txt\necho \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now10.txt\necho \"--- fixed this round:\"; comm -23 $S/now9.txt $S/now10.txt | sed 's/\\[.*//' | sort | uniq -c\n.venv/bin/python - <<'EOF'\nimport click\ndef mk(n, deco=click.command, **kw):\n def f(): pass\n f.__name__ = n\n return deco(**kw)(f).name\nprint([mk(n) for n in [\"command\", \"cmd\", \"my_command\", \"Init_Group\", \"commands\", \"x_command_y\", \"_cmd\", \"sync_cmd\"]])\nprint(mk(\"init_group\", click.group), mk(\"init_group\", name=\"explicit_cmd\"), mk(\"init_group\", name=\"\"))\nEOF"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Nb64QcuE4gQnZJTTUNjmzK","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01UqvytKYiqRcDj5EpcAokSU","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/decorators.py\"\ns = open(p).read()\nold = ''' if sep and suffix in {\"command\", \"cmd\", \"group\", \"grp\"}:\n cmd_name = cmd_left\n'''\nnew = ''' # Keep the suffix if removing it would leave nothing.\n if sep and cmd_left and suffix in {\"command\", \"cmd\", \"group\", \"grp\"}:\n cmd_name = cmd_left\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\nawk 'length > 88 {print FILENAME\": \"FNR\": \"length}' src/click/decorators.py\n.venv/bin/python - <<'EOF'\nimport click\ndef mk(n):\n def f(): pass\n f.__name__ = n\n return click.command(f).name\nprint([mk(n) for n in [\"_cmd\", \"init_data_cmd\", \"cmd\", \"a_group\"]])\nEOF\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now10.txt\nwc -l < $S/now10.txt; echo \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now10.txt"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01UqvytKYiqRcDj5EpcAokSU","text":""}]},{"role":"assistant","text":"Issue 10 is fixed. `test_generate_name` (4 cases) and `test_other_command_invoke_with_defaults` (17 cases) now pass, and nothing that passed before now fails. With a fixed `PYTHONHASHSEED` the suite is down to 35 failures from 86 at the start.\n\n**Cause:** `click.command` built the default name as `f.__name__.lower().replace(\"_\", \"-\")`, so `init_data_command` stayed `init-data-command`.\n\n**Fix (`src/click/decorators.py`):** after that conversion, a trailing `-command`, `-cmd`, `-group` or `-grp` segment is dropped, so `init_data_cmd` becomes `init-data`. This is the rule `CHANGES.md` already records under 8.2.0.\n- **Coverage:** `group()` and `Group.command()` / `Group.group()` build on `command()`, so they get the same behaviour.\n- **What still keeps its name:**\n - An explicit name is used as given, and an empty name still falls back to the derived one, as before.\n - The suffix is only dropped from a longer name, so `command` and `cmd` stay as they are, and `commands` and `x_command_y` are untouched.\n - The rule doesn't apply when stripping would leave nothing, so a function named `_cmd` stays `-cmd` rather than becoming an empty command name.\n\nI updated the `command()` docstring with the rule and a `versionchanged:: 8.2` note, and left `CHANGES.md` alone because it already describes this.\n\nReady for issue 11.","toolUses":[]},{"role":"user","text":"Issue 11 of 20. Bug report.\n\nWhen a group can be invoked without a subcommand, its usage line still presents the subcommand as required. It should be marked optional.\n\nFailing:\n tests/test_commands.py::test_subcommand_metavar_marks_optional","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_013TbNVuUtzf8DQBKpHYJWLP","tool":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_commands.py -q -p no:randomly -k test_subcommand_metavar_marks_optional 2>&1 | grep -v \"^ \" | tail -30; grep -n \"def test_subcommand_metavar_marks_optional\" -B30 -A30 tests/test_commands.py"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_017cD6xRjpZV7xk5Qbb8NgTZ","tool":"Bash","input":{"command":"grep -n \"subcommand_metavar\\|COMMAND\" src/click/core.py | head -30"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_013TbNVuUtzf8DQBKpHYJWLP","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_017cD6xRjpZV7xk5Qbb8NgTZ","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01VMkhXgvx5fhCJ8GSG4Q7E2","tool":"Bash","input":{"command":"sed -n 1685,1800p src/click/core.py; sed -n 1970,1982p src/click/core.py; grep -rn \"subcommand_metavar\" tests docs src --include=*.py --include=*.md | grep -v \"^src/click/core.py\" | head"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01VMkhXgvx5fhCJ8GSG4Q7E2","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01XnayHEtMvDd43bjjRm9Wt3","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/core.py\"\ns = open(p).read()\n\nold = ''' if subcommand_metavar is None:\n if chain:\n subcommand_metavar = \"COMMAND1 [ARGS]... [COMMAND2 [ARGS]...]...\"\n else:\n subcommand_metavar = \"COMMAND [ARGS]...\"\n'''\nnew = ''' if subcommand_metavar is None:\n if chain:\n command = \"COMMAND1\"\n subcommand_metavar = \"{} [ARGS]... [COMMAND2 [ARGS]...]...\"\n else:\n command = \"COMMAND\"\n subcommand_metavar = \"{} [ARGS]...\"\n\n # The leading subcommand is only optional if the group can run without it.\n if invoke_without_command:\n command = f\"[{command}]\"\n\n subcommand_metavar = subcommand_metavar.format(command)\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = ''' :param subcommand_metavar: How to represent the subcommand argument in help.\n The default will represent whether ``chain`` is set or not.\n'''\nnew = ''' :param subcommand_metavar: How to represent the subcommand argument in help.\n The default will represent whether ``chain`` is set or not, and whether\n ``invoke_without_command`` makes the subcommand optional.\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\n.venv/bin/python -m pytest tests/test_commands.py -q -p no:randomly -k test_subcommand_metavar_marks_optional 2>&1 | tail -3\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now11.txt\nwc -l < $S/now11.txt; echo \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now11.txt\necho \"--- fixed this round:\"; comm -23 $S/now10.txt $S/now11.txt"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01XnayHEtMvDd43bjjRm9Wt3","text":""}]},{"role":"assistant","text":"It passes, but the `.format` template I wrote is clumsier than it needs to be. I'll simplify it before moving on.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01RbFMZjWVfWBFveJBru1gFn","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/core.py\"\ns = open(p).read()\nold = ''' if subcommand_metavar is None:\n if chain:\n command = \"COMMAND1\"\n subcommand_metavar = \"{} [ARGS]... [COMMAND2 [ARGS]...]...\"\n else:\n command = \"COMMAND\"\n subcommand_metavar = \"{} [ARGS]...\"\n\n # The leading subcommand is only optional if the group can run without it.\n if invoke_without_command:\n command = f\"[{command}]\"\n\n subcommand_metavar = subcommand_metavar.format(command)\n'''\nnew = ''' if subcommand_metavar is None:\n first = \"COMMAND1\" if chain else \"COMMAND\"\n\n # The leading subcommand is only optional if the group can run without it.\n if invoke_without_command:\n first = f\"[{first}]\"\n\n subcommand_metavar = f\"{first} [ARGS]...\"\n\n if chain:\n subcommand_metavar += \" [COMMAND2 [ARGS]...]...\"\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\nawk 'length > 88 {print FILENAME\": \"FNR\": \"length}' src/click/core.py\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now11.txt\nwc -l < $S/now11.txt; echo \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now11.txt\n.venv/bin/python -m pytest tests/test_commands.py -q -p no:randomly -k test_subcommand_metavar_marks_optional 2>&1 | tail -1"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01RbFMZjWVfWBFveJBru1gFn","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Cn9uJbPaFXMMeGS8t11vie","tool":"Bash","input":{"command":"sed -n 2800p src/click/core.py; git blame -s -L2800,2800 src/click/core.py | cut -c1-12"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Cn9uJbPaFXMMeGS8t11vie","text":""}]},{"role":"assistant","text":"Issue 11 is fixed. All four cases of `test_subcommand_metavar_marks_optional` pass, and nothing that passed before now fails. With a fixed `PYTHONHASHSEED` the suite is down to 33 failures from 86 at the start.\n\n**Cause:** `Group.__init__` (`src/click/core.py`) picked its default `subcommand_metavar` from `chain` only. A group with `invoke_without_command=True` still showed `COMMAND [ARGS]...`, as if a subcommand were mandatory.\n\n**Fix:** the default now also looks at `invoke_without_command`, and brackets the leading command when the group can run without one:\n\n| chain | invoke_without_command | usage |\n|---|---|---|\n| no | no | `COMMAND [ARGS]...` |\n| no | yes | `[COMMAND] [ARGS]...` |\n| yes | no | `COMMAND1 [ARGS]... [COMMAND2 [ARGS]...]...` |\n| yes | yes | `[COMMAND1] [ARGS]... [COMMAND2 [ARGS]...]...` |\n\nAn explicit `subcommand_metavar=` is still used exactly as given. I updated the parameter's docstring to mention the new dependency. `docs/documentation.md` already described the bracketed form, and I left `CHANGES.md` alone.\n\nReady for issue 12.","toolUses":[]},{"role":"user","text":"Issue 12 of 20. Bug report.\n\nWhen `PAGER` is set with its own arguments, click does not forward all of them to the pager, and decides whether the pager handles raw control codes by looking at the wrong thing -- it should parse the option tokens. `less.exe` on Windows is not recognised as `less` either.\n\nFailing:\n tests/test_termui.py::test_pipepager_less_detection_case_insensitive_on_windows\n tests/test_termui.py::test_pipepager_less_detection_matches_stem\n tests/test_termui.py::test_pipepager_less_raw_mode_detection\n tests/test_termui.py::test_tempfile_pager_passes_pager_params","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01MSiTYyjWp21EixATXFRgeN","tool":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_termui.py -q -p no:randomly -k \"pipepager or tempfile_pager or pager\" 2>&1 | grep -E \"^(FAILED|E )|passed|failed\" | head -50"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Mwa8iQR56BwTcocnCg2YXE","tool":"Bash","input":{"command":"grep -n \"pipepager_less\\|tempfile_pager\\|def test_.*pager\" tests/test_termui.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01MSiTYyjWp21EixATXFRgeN","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Mwa8iQR56BwTcocnCg2YXE","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01LEpCSHbCXJgLMRtc4DRith","tool":"Bash","input":{"command":"sed -n 640,700p tests/test_termui.py; sed -n 770,930p tests/test_termui.py; sed -n 1165,1262p tests/test_termui.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01LEpCSHbCXJgLMRtc4DRith","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01V9xhygGixK2rZyWqSemy4s","tool":"Bash","input":{"command":"sed -n 380,545p src/click/_termui_impl.py; sed -n 582,640p src/click/_termui_impl.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01V9xhygGixK2rZyWqSemy4s","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_018z1VVv8B7ZJFLh2YMe3Lfh","tool":"Bash","input":{"command":"grep -rn \"_tempfilepager\\|_pipepager\\|_nullpager\" tests/*.py src/click/*.py | grep -v \"def test_\\|^tests.*#\" | head -30; sed -n 100,116p CHANGES.md; sed -n 545,562p src/click/_termui_impl.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_018z1VVv8B7ZJFLh2YMe3Lfh","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01BvmXv15xWZQjz1Y4Qdh2Ze","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/_termui_impl.py\"\ns = open(p).read()\n\n# 1. helpers, placed before _pager_contextmanager\nold = '''def _pager_contextmanager(\n color: bool | None = None,\n) -> t.ContextManager[tuple[t.TextIO, bool | None]]:'''\nnew = '''def _is_less(cmd_path: Path) -> bool:\n \"\"\"Whether a resolved pager command is ``less``, ignoring an extension such\n as the ``.exe`` of Windows. Windows filesystems are case-insensitive, so\n ``which`` resolves any case there, and the match ignores it too.\n \"\"\"\n stem = cmd_path.stem\n return (stem.casefold() if WIN else stem) == \"less\"\n\n\n# The short ``less`` options that take the rest of their token as a string. A\n# ``r`` or ``R`` inside that value does not ask for raw control characters.\n_LESS_STRING_OPTIONS = frozenset(\"DkoOpPtT\")\n\n\ndef _less_requests_raw_mode(tokens: cabc.Iterable[str]) -> bool:\n \"\"\"Whether ``less`` option tokens ask for raw control characters, so the\n pager passes ANSI colors through: ``-r``, ``-R``, alone or bundled with\n other short flags, or ``--raw-control-chars`` and ``--RAW-CONTROL-CHARS``.\n\n Filenames, and letters inside the value of an option, do not count.\n \"\"\"\n for token in tokens:\n if token == \"--\":\n # Everything after the terminator is a filename.\n break\n\n if token.startswith(\"--\"):\n if token in (\"--raw-control-chars\", \"--RAW-CONTROL-CHARS\"):\n return True\n elif token.startswith(\"-\"):\n for char in token[1:]:\n if char in \"rR\":\n return True\n\n if char in _LESS_STRING_OPTIONS:\n break\n\n return False\n\n\ndef _pager_contextmanager(\n color: bool | None = None,\n) -> t.ContextManager[tuple[t.TextIO, bool | None]]:'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\n# 2. pass params to the tempfile pager\nold = \" return _tempfilepager(cmd_path, color)\\n\"\nnew = \" return _tempfilepager(cmd_path, cmd_params, color)\\n\"\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\n# 3. detection in _pipepager\nold = ''' # If we're piping to less and the user hasn't decided on colors, we enable\n # them by default we find the -R flag in the command line arguments.\n if color is None and cmd_path.name == \"less\":\n less_flags = f\"{os.environ.get('LESS', '')}{' '.join(cmd_params)}\"\n if not less_flags:\n env[\"LESS\"] = \"-R\"\n color = True\n elif \"r\" in less_flags or \"R\" in less_flags:\n color = True\n'''\nnew = ''' # If we're piping to less and the user hasn't decided on colors, we enable\n # them by default, or if we find the -R flag in the ``LESS`` variable or the\n # command line arguments.\n if color is None and _is_less(cmd_path):\n less_env = os.environ.get(\"LESS\", \"\")\n\n if not less_env and not cmd_params:\n env[\"LESS\"] = \"-R\"\n color = True\n else:\n try:\n less_env_tokens = shlex.split(less_env)\n except ValueError:\n # Unbalanced quotes. less still reads the options it can.\n less_env_tokens = less_env.split()\n\n if _less_requests_raw_mode(less_env_tokens) or _less_requests_raw_mode(\n cmd_params\n ):\n color = True\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\n# 4. tempfile pager\nold = '''def _tempfilepager(\n cmd_path: Path, color: bool | None = None\n) -> t.Iterator[tuple[t.TextIO, bool | None]]:\n \"\"\"Page through text by invoking a program on a temporary file.\n\n Used as the primary pager strategy on Windows (where piping to\n ``more`` adds spurious ``\\\\\\\\r\\\\\\\\n``), and as a fallback on other\n platforms. The command is invoked with the temporary file as its only\n argument: any parameters the user set in ``PAGER`` are not passed on.\n \"\"\"'''\nnew = '''def _tempfilepager(\n cmd_path: Path, cmd_params: list[str], color: bool | None = None\n) -> t.Iterator[tuple[t.TextIO, bool | None]]:\n \"\"\"Page through text by invoking a program on a temporary file.\n\n Used as the primary pager strategy on Windows (where piping to\n ``more`` adds spurious ``\\\\\\\\r\\\\\\\\n``), and as a fallback on other\n platforms. The command is invoked with the parameters the user set in\n ``PAGER``, followed by the temporary file.\n \"\"\"'''\nassert s.count(old) == 1, s.count(old)\ns = s.replace(old, new, 1)\n\nold = \" subprocess.call([str(cmd_path), f.name])\\n\"\nnew = \" subprocess.call([str(cmd_path), *cmd_params, f.name])\\n\"\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\nawk 'length > 88 {print FILENAME\": \"FNR\": \"length}' src/click/_termui_impl.py\n.venv/bin/python -m pytest tests/test_termui.py -q -p no:randomly -k \"pager\" 2>&1 | tail -5"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01BvmXv15xWZQjz1Y4Qdh2Ze","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01K1JYwuJ9XkH2heXRWEdqEu","tool":"Bash","input":{"command":"S=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now12.txt\nwc -l < $S/now12.txt; echo \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now12.txt\necho \"--- fixed this round:\"; comm -23 $S/now11.txt $S/now12.txt\ngit stash -q; .venv/bin/python -m pytest -q -p no:randomly tests/test_termui.py -k test_echo_via_pager_streams_each_write 2>&1 | tail -1; git stash pop -q\n.venv/bin/python - <<'EOF'\nfrom click._termui_impl import _less_requests_raw_mode as f\ncases = {\n \"-R\": True, \"-rX\": True, \"-X\": False, \"--raw-control-chars\": True, \"--RAW-CONTROL-CHARS\": True,\n \"--raw-control-chars=x\": False, \"--prompt=resume\": False, \"-Ppromptr\": False, \"-P -R\": True,\n \"-iR\": True, \"-Dur\": False, \"-j5R\": True, \"-\": False,\n}\nfor tokens, want in cases.items():\n got = f(tokens.split(\" \"))\n print(\"ok \" if got == want else \"BAD\", tokens, got)\nprint(\"terminator:\", f([\"--\", \"-R\"]), \" after flag:\", f([\"-X\", \"--\", \"-R\"]))\nEOF"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01K1JYwuJ9XkH2heXRWEdqEu","text":""}]},{"role":"assistant","text":"Issue 12 is fixed. All four named tests pass (8 cases in total, counting parametrizations), and nothing that passed before now fails. With a fixed `PYTHONHASHSEED` the suite is down to 25 failures from 86 at the start.\n\nThe changes are all in `src/click/_termui_impl.py`.\n\n- **Extra `PAGER` arguments were dropped:** `_tempfilepager` never received the parameters split off `PAGER`, so `PAGER=\"head -n 1\"` ran bare `head`. It now takes `cmd_params` like `_pipepager` does and runs `[command, *params, tempfile]`.\n- **`less.exe` wasn't recognised:** detection compared the whole file name, `cmd_path.name == \"less\"`. A new `_is_less()` compares the stem, so `less.exe` matches. The match is case-sensitive on POSIX and casefolded on Windows.\n- **Raw-mode detection looked at raw text:** it searched the `LESS` value plus the arguments for any `r` or `R`. That misfired on `README.md`, `--prompt=resume` and the like. A new `_less_requests_raw_mode()` reads option tokens:\n - Bundled short flags such as `-R` and `-rX`, and `--raw-control-chars` / `--RAW-CONTROL-CHARS`, count.\n - `--` ends option parsing, so what follows is a filename.\n - `--raw-control-chars=x` doesn't count.\n - Letters inside the value of string-taking short options (`-P`, `-p`, `-t`, `-T`, `-k`, `-o`, `-O`, `-D`) don't count.\n- **Unparsable `LESS`:** an unparsable `LESS` such as `-R \"` falls back to whitespace splitting, as the test requires.\n- **Unchanged:** the `LESS=-R` default when there is no `LESS` and no arguments works as before.\n\nI did not handle less's `-+R` and `-!R` reset forms. They would be read as requesting raw mode, but no test covers them and they're rare.\n\n`test_echo_via_pager_streams_each_write` still fails. It wasn't in this issue's list, and I confirmed it fails with my changes stashed too. `CHANGES.md` already covers both changes, so I left it alone.\n\nReady for issue 13.","toolUses":[]},{"role":"user","text":"Issue 13 of 20. Bug report.\n\nA user-defined `type_cast_value` on a custom parameter class can be called with click's internal `UNSET` sentinel. User code must never see `UNSET`.\n\nFailing:\n tests/test_arguments.py::test_argument_custom_class_can_override_type_cast_value_and_never_sees_unset\n tests/test_options.py::test_option_custom_class_can_override_type_cast_value_and_never_sees_unset","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Y2U6qKyZEjYwvvT7wzxGV5","tool":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_arguments.py tests/test_options.py -q -p no:randomly -k \"never_sees_unset\" 2>&1 | grep -E \"^(FAILED|E )|passed|failed\" | head -30; grep -n \"def test_argument_custom_class_can_override_type_cast_value_and_never_sees_unset\" -B25 -A45 tests/test_arguments.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Y2U6qKyZEjYwvvT7wzxGV5","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_015VzFFtWNUnTVJ3RPBzrZEH","tool":"Bash","input":{"command":"grep -n \"def test_option_custom_class_can_override_type_cast_value_and_never_sees_unset\" -B22 -A25 tests/test_options.py; sed -n 2575,2660p src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_015VzFFtWNUnTVJ3RPBzrZEH","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Cj1uxsKuoNb9mqZuCzsGgm","tool":"Bash","input":{"command":"sed -n 2556,2582p src/click/core.py; grep -n \"def type_cast_value\" -A25 src/click/core.py | sed -n '/^3[0-9][0-9][0-9]/p'"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Cj1uxsKuoNb9mqZuCzsGgm","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_018YLchEfBJzz8MgZVF6WucQ","tool":"Bash","input":{"command":"grep -rn \"type_cast_value\\|process_value\" src/click/*.py tests/*.py docs/*.md | grep -v \"\\.pyc\""}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_018YLchEfBJzz8MgZVF6WucQ","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01BHMjJbC97gDkLbaRypu8Vv","tool":"Bash","input":{"command":"sed -n 925,955p src/click/core.py; sed -n 3525,3545p src/click/core.py; sed -n 3120,3160p src/click/core.py; sed -n 660,676p tests/test_options.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01BHMjJbC97gDkLbaRypu8Vv","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_014Mqv5E9784LiiPMfarxe8B","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/core.py\"\ns = open(p).read()\n\nold = ''' 1. Type cast the value using :meth:`type_cast_value`.\n 2. Check if the value is missing'''\nnew = ''' 1. Type cast the value using :meth:`type_cast_value`. A value that was not set\n is not passed to it, as the :attr:`UNSET` sentinel is an implementation\n detail: it becomes an empty tuple if the parameter takes multiple values,\n and stays :attr:`UNSET` otherwise.\n 2. Check if the value is missing'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = ''' value = self.type_cast_value(ctx, value)\n\n if self.required and self.value_is_missing(value):\n raise MissingParameter(ctx=ctx, param=self)\n'''\nnew = ''' # Shelter ``type_cast_value``, which subclasses can override, from ever seeing\n # ``UNSET``: the cases in which it gets special treatment are handled here.\n if value is UNSET:\n if self.multiple or self.nargs == -1:\n value = ()\n else:\n value = self.type_cast_value(ctx, value)\n\n if self.required and self.value_is_missing(value):\n raise MissingParameter(ctx=ctx, param=self)\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = ''' def type_cast_value(self, ctx: Context, value: t.Any) -> t.Any:\n if self.is_flag and not self.required:\n if value is UNSET:\n if self.is_bool_flag:\n # If the flag is a boolean flag, we return False if it is not set.\n value = False\n return super().type_cast_value(ctx, value)\n'''\nnew = ''' def process_value(self, ctx: Context, value: t.Any) -> t.Any:\n # A boolean flag that is not set is False. This has to be resolved before\n # ``type_cast_value`` is called, so it never sees ``UNSET``.\n if value is UNSET and self.is_flag and not self.required and self.is_bool_flag:\n value = False\n\n return super().process_value(ctx, value)\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\nawk 'length > 88 {print FILENAME\": \"FNR\": \"length}' src/click/core.py\n.venv/bin/python -m pytest tests/test_arguments.py tests/test_options.py -q -p no:randomly -k \"never_sees_unset\" 2>&1 | tail -3\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now13.txt\nwc -l < $S/now13.txt; echo \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now13.txt\necho \"--- fixed this round:\"; comm -23 $S/now12.txt $S/now13.txt"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_014Mqv5E9784LiiPMfarxe8B","text":""}]},{"role":"assistant","text":"All 11 cases pass. I'll also check that a custom `type_cast_value` really never sees the sentinel on the paths the tests don't cover, and that the built-in behaviour is intact.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_013fYCkZ3FJ31oB8XAzmQetZ","tool":"Bash","input":{"command":".venv/bin/python - <<'EOF'\nimport click\nfrom click._utils import UNSET\nfrom click.testing import CliRunner\n\nseen = []\nclass Opt(click.Option):\n def type_cast_value(self, ctx, value):\n seen.append((self.name, value)); assert value is not UNSET\n return super().type_cast_value(ctx, value)\nclass Arg(click.Argument):\n def type_cast_value(self, ctx, value):\n seen.append((self.name, value)); assert value is not UNSET\n return super().type_cast_value(ctx, value)\n\n@click.command()\n@click.option(\"--plain\", cls=Opt)\n@click.option(\"--flag\", is_flag=True, cls=Opt)\n@click.option(\"--multi\", multiple=True, cls=Opt)\n@click.option(\"--needed\", required=True, cls=Opt)\n@click.argument(\"rest\", nargs=-1, cls=Arg)\n@click.argument(\"maybe\", required=False, cls=Arg)\ndef cli(plain, flag, multi, needed, rest, maybe):\n click.echo(repr((plain, flag, multi, needed, rest, maybe)))\n\nr = CliRunner()\nres = r.invoke(cli, [])\nprint(\"missing required ->\", res.exit_code, res.output.strip().splitlines()[-1])\nres = r.invoke(cli, [\"--needed\", \"x\"])\nprint(\"all unset ->\", res.exit_code, res.output.strip(), res.exception)\nprint(\"calls seen:\", seen)\nEOF"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_013fYCkZ3FJ31oB8XAzmQetZ","text":""}]},{"role":"assistant","text":"Issue 13 is fixed. All 11 cases of the two named tests pass, and nothing that passed before now fails. With a fixed `PYTHONHASHSEED` the suite is down to 21 failures from 86 at the start.\n\n**Cause:** `Parameter.process_value` passed whatever value the parser produced into `type_cast_value`, and for a parameter nobody set that value is the internal `UNSET`. The built-in `type_cast_value` methods knew how to handle it, but a user's override, which the docs invite, got the raw sentinel.\n\n**Fix (`src/click/core.py`):**\n- **`Parameter.process_value`:** it no longer calls `type_cast_value` for an unset value. The one case that needs special treatment is handled there. A parameter that takes several values (`multiple` or `nargs=-1`) gets `()`, and anything else stays `UNSET` for the required and missing checks that follow.\n- **`Option.process_value`:** a new override turns an unset, non-required boolean flag into `False` before delegating. That logic used to live in `Option.type_cast_value`, which is now removed since nothing else was in it.\n- **`Parameter.type_cast_value`:** it still tolerates `UNSET`, so a direct call such as `opt.type_cast_value(ctx, opt.get_default(ctx))` behaves as before.\n\nI checked by hand with custom `Option` and `Argument` classes covering a plain option, a flag, `multiple`, a required option and `nargs=-1` / optional arguments:\n- **Sentinel:** no override was ever called with the sentinel.\n- **Defaults:** unset values came out as `None`, `False` and `()` as before.\n- **Missing required option:** a missing required option still gives `Missing option '--needed'`.\n\nI didn't touch `CHANGES.md`, and issue 8's process_value docstring note is unaffected.\n\nReady for issue 14.","toolUses":[]},{"role":"user","text":"Issue 14 of 20. Feature request.\n\n`echo_via_pager` with a generator shows nothing until the generator is exhausted. Each chunk should reach the pager as it is produced, so that long output starts appearing immediately.\n\nFailing:\n tests/test_termui.py::test_echo_via_pager_streams_each_write","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01BZopid3sbMc78D4zh69TWS","tool":"Bash","input":{"command":"sed -n 926,968p tests/test_termui.py; sed -n '/^def echo_via_pager/,/^def progressbar/p' src/click/termui.py | head -120"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01BZopid3sbMc78D4zh69TWS","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01JG2TPdLrDPDnG87krUpjpg","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/termui.py\"\ns = open(p).read()\nold = ''' for text in itertools.chain(text_generator, \"\\\\n\"):\n pager.write(text)\n'''\nnew = ''' for text in itertools.chain(text_generator, \"\\\\n\"):\n pager.write(text)\n # Flush every chunk, or the pipe to the pager buffers the output of a\n # slow generator until the end.\n pager.flush()\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\n.venv/bin/python -m pytest tests/test_termui.py -q -p no:randomly -k \"pager\" 2>&1 | tail -3\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now14.txt\nwc -l < $S/now14.txt; echo \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now14.txt\necho \"--- fixed this round:\"; comm -23 $S/now13.txt $S/now14.txt"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01JG2TPdLrDPDnG87krUpjpg","text":""}]},{"role":"assistant","text":"The test passes. I'll confirm the streaming with a real pager process and a slow generator, since that's the behaviour the issue describes and the unit test only checks call order.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01UU1gA5DwSagmSn14kHG8oe","tool":"Bash","input":{"command":"cat > \"/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad/slow.py\" <<'EOF'\nimport time, click, click._termui_impl as impl\nimpl.isatty = lambda _: True\nt0 = time.time()\ndef gen():\n for i in range(3):\n yield f\"chunk {i} produced at {time.time() - t0:.1f}s\\n\"\n time.sleep(1)\nclick.echo_via_pager(gen())\nEOF\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPAGER=\"perl -ne 'BEGIN{\\$|=1; use Time::HiRes qw(time); \\$t=time} printf \\\"pager got: %s (at %.1fs)\\n\\\", \\$_ =~ s/\\n//r, time-\\$t'\" .venv/bin/python $S/slow.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01UU1gA5DwSagmSn14kHG8oe","text":""}]},{"role":"assistant","text":"Issue 14 is fixed. `tests/test_termui.py::test_echo_via_pager_streams_each_write` passes, and nothing that passed before now fails. With a fixed `PYTHONHASHSEED` the suite is down to 20 failures from 86 at the start. That's exactly the 20 open issues minus the ones I've fixed, so I expect the rest of the failures to belong to issues 15–20.\n\n**Cause:** `echo_via_pager` wrote each chunk to the pager but never flushed. The pipe to a real pager process is buffered, so a slow generator's output sat in that buffer until the generator finished, or until the buffer filled.\n\n**Fix (`src/click/termui.py`):** `echo_via_pager` now calls `pager.flush()` after every chunk, including the trailing newline. A flush that hits a pager that has already exited still ends quietly, because `_pipepager` already ignores `BrokenPipeError`.\n\nI ran a real pager process against a generator that yields once per second. Before, everything would have arrived at the end. Now the pager sees each chunk when it is produced, at 0.0s, 0.8s and 1.8s against 0.0s, 1.1s and 2.1s for the generator.\n\nI kept the flush in `echo_via_pager` and did not make `get_pager_file`'s writer flush on every `write`. Callers of that public context manager may write many small pieces and can flush when they choose.\n\nI left `CHANGES.md` alone, since the released sections already mention streaming for #3242 and #2542.\n\nReady for issue 15.","toolUses":[]},{"role":"user","text":"Issue 15 of 20. Bug report.\n\n`get_help_option_names` does not preserve the order the help option names were declared in.\n\nFailing:\n tests/test_commands.py::test_get_help_option_names","toolUses":[]},{"role":"assistant","text":"This is the flaky test I saw back in issue 4. `get_help_option_names` builds a `set`, so the order depends on hash randomization and duplicates are only removed by accident.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01K3a5A1SyrNMVdpwgX6GzMM","tool":"Bash","input":{"command":"sed -n 405,435p tests/test_commands.py; python3 - <<'EOF'\np = \"src/click/core.py\"\ns = open(p).read()\nold = ''' all_names = set(ctx.help_option_names)\n for param in self.params:\n all_names.difference_update(param.opts)\n all_names.difference_update(param.secondary_opts)\n return list(all_names)\n'''\nnew = ''' taken = set()\n for param in self.params:\n taken.update(param.opts)\n taken.update(param.secondary_opts)\n # Drop duplicates and names another parameter uses, keeping the order the\n # names were declared in.\n return [\n name for name in dict.fromkeys(ctx.help_option_names) if name not in taken\n ]\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\nawk 'length > 88 {print FILENAME\": \"FNR\": \"length}' src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01K3a5A1SyrNMVdpwgX6GzMM","text":""}]},{"role":"assistant","text":"The stable order should hold under any hash seed, not just the one I use for comparisons. I'll run the test under many seeds and then the full suite.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01GdvAHko2w9DwBvCsHZhAsz","tool":"Bash","input":{"command":"for seed in 0 1 2 3 7 42 123 999 31337 random random random; do PYTHONHASHSEED=$seed .venv/bin/python -m pytest tests/test_commands.py -q -p no:randomly -k test_get_help_option_names 2>&1 | tail -1; done | sort | uniq -c\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now15.txt\nwc -l < $S/now15.txt; echo \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now15.txt\necho \"--- fixed this round:\"; comm -23 $S/now14.txt $S/now15.txt"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01GdvAHko2w9DwBvCsHZhAsz","text":""}]},{"role":"assistant","text":"Issue 15 is fixed. `tests/test_commands.py::test_get_help_option_names` passes across all 13 cases and across twelve different hash seeds, including random ones, so it no longer depends on hash randomization. Nothing that passed before now fails, and with a fixed `PYTHONHASHSEED` the suite is down to 16 failures from 86 at the start.\n\n**Cause:** `Command.get_help_option_names` in `src/click/core.py` put `ctx.help_option_names` into a `set`, removed the names other parameters use, and returned `list(set)`. A set has no declared order, so the result depended on the hash seed. That's why this test failed a different number of cases on each run back in issue 4.\n\n**Fix:** it now builds the list with `dict.fromkeys(ctx.help_option_names)`, which drops duplicates but keeps first-seen order. It then filters out any name another parameter's `opts` or `secondary_opts` already uses. It returns the same names as before, now in the order they were declared.\n\nI left `CHANGES.md` alone. It already records the change from pull request 3728, which the test's docstring points to.\n\nReady for issue 16.","toolUses":[]},{"role":"user","text":"Issue 16 of 20. Feature request.\n\n**Deprecate `isolated_filesystem()`** (upstream #3700)\n\nNowadays you can use `pytest` directly for this, or `tempfile.TemporaryDirectory()`; it would not be added today, and was added before Python 3 and pytest were in common use. It should emit a deprecation warning, and its limits should be documented.\n\nFailing:\n tests/test_deprecations.py::test_isolated_filesystem_deprecated","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01D9znyoKnTNsP6L6j5mpw14","tool":"Bash","input":{"command":"cat tests/test_deprecations.py | head -80; grep -n \"isolated_filesystem\" -r src docs tests CHANGES.md | grep -v \"\\.pyc\" | head -40"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01D9znyoKnTNsP6L6j5mpw14","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01PSssrpYMnNnkjEAb9V94mR","tool":"Bash","input":{"command":"sed -n 60,75p CHANGES.md; sed -n 175,215p docs/testing.md; sed -n 735,785p src/click/testing.py; grep -n \"DeprecationWarning\" -B4 -A6 src/click/core.py | sed -n 1,60p; grep -n \"^import\\|^from\" src/click/testing.py | head -30"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01PSssrpYMnNnkjEAb9V94mR","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01D71CEEJ5tKH4LokEuKEUFB","tool":"Bash","input":{"command":"grep -n \"deprecated\\|DeprecationWarning\" src/click/*.py | grep -v \"self.deprecated\\|deprecated:\\|deprecated=\\|\\.deprecated\\|_format_deprecated\\|deprecated \\(and\\|option\\|arg\\)\" | head -30; sed -n 436,500p tests/test_testing.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01D71CEEJ5tKH4LokEuKEUFB","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01AjvQE3i9KW6njQixFw1aPw","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/testing.py\"\ns = open(p).read()\n\nold = \"import typing as t\\nfrom types import TracebackType\\n\"\nnew = \"import typing as t\\nimport warnings\\nfrom types import TracebackType\\n\"\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = ''' :param temp_dir: Create the temporary directory under this\n directory. If given, the created directory is not removed\n when exiting.\n\n .. versionchanged:: 8.0\n Added the ``temp_dir`` parameter.\n \"\"\"\n cwd = os.getcwd()\n'''\nnew = ''' :param temp_dir: Create the temporary directory under this\n directory. If given, the created directory is not removed\n when exiting.\n\n .. deprecated:: 8.5.0\n Will be removed in Click 9.0. This predates Python 3 and pytest.\n It relies on :func:`os.chdir`, which changes process-global state,\n so it is not thread-safe: threads running it at the same time\n change the directory under each other. Use a temporary directory\n instead, such as :class:`tempfile.TemporaryDirectory` or pytest's\n ``tmp_path`` fixture, and pass absolute paths to the command. To\n run tests in parallel, use processes, such as ``pytest-xdist``,\n rather than threads.\n\n .. versionchanged:: 8.0\n Added the ``temp_dir`` parameter.\n \"\"\"\n # Attributed to the ``with`` statement: the generator runs when it is entered.\n warnings.warn(\n \"'isolated_filesystem' is deprecated and will be removed in Click 9.0.\"\n \" Use a temporary directory, such as 'tempfile.TemporaryDirectory' or\"\n \" pytest's 'tmp_path' fixture, with absolute paths instead.\",\n DeprecationWarning,\n stacklevel=3,\n )\n cwd = os.getcwd()\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\nawk 'length > 88 {print FILENAME\": \"FNR\": \"length}' src/click/testing.py\n.venv/bin/python -m pytest tests/test_deprecations.py tests/test_testing.py -q -p no:randomly 2>&1 | tail -3\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now16.txt\nwc -l < $S/now16.txt; echo \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now16.txt\necho \"--- fixed this round:\"; comm -23 $S/now15.txt $S/now16.txt\ncat > $S/warn.py <<'EOF'\nimport warnings\nfrom click.testing import CliRunner\nwarnings.simplefilter(\"always\")\nwith CliRunner().isolated_filesystem():\n pass\nEOF\n.venv/bin/python $S/warn.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01AjvQE3i9KW6njQixFw1aPw","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_0191gjjKwtJdBh6fbYdJwvzt","tool":"Bash","input":{"command":"git blame -s -L29,29 src/click/testing.py | cut -c1-60; grep -rn \"isolated_filesystem\" src/click/*.py | grep -v \"^src/click/testing.py\""}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_0191gjjKwtJdBh6fbYdJwvzt","text":""}]},{"role":"assistant","text":"Issue 16 is done. `tests/test_deprecations.py::test_isolated_filesystem_deprecated` passes, and nothing that passed before now fails. With a fixed `PYTHONHASHSEED` the suite is down to 15 failures from 86 at the start.\n\n**Change (`src/click/testing.py`):**\n- **Warning:** `CliRunner.isolated_filesystem()` now emits a `DeprecationWarning`. The message reads \"'isolated_filesystem' is deprecated and will be removed in Click 9.0. Use a temporary directory, such as 'tempfile.TemporaryDirectory' or pytest's 'tmp_path' fixture, with absolute paths instead.\"\n- **Message format:** it starts with `'isolated_filesystem'` in quotes, like the other click deprecations. That is also the form the existing `filterwarnings` markers in `tests/test_testing.py` match, so its two isolated-filesystem tests keep running without the warning turning into an error.\n- **Attribution:** it's a context manager, so the warning fires when the `with` statement is entered. I set `stacklevel=3` so it points at the caller's `with` line, not into `contextlib`. I checked that by hand.\n- **Docstring:** a `.. deprecated:: 8.5.0` note gives the limits.\n - It predates Python 3 and pytest.\n - It relies on `os.chdir`, which changes process-global state, so it isn't thread-safe.\n - The alternatives are `tempfile.TemporaryDirectory` or pytest's `tmp_path` with absolute paths.\n - Parallel test runs should use processes such as `pytest-xdist`, not threads.\n\n`docs/testing.md`, `docs/upgrade-guides.md` and `CHANGES.md` already document the deprecation, so I left them alone. Behaviour is otherwise unchanged. The directory is still created, entered and cleaned up as before.\n\nReady for issue 17.","toolUses":[]},{"role":"user","text":"Issue 17 of 20. Feature request.\n\nThe progress bar should be able to show the item currently being processed, through `item_show_func`. The failing test shows the expected behaviour.\n\nFailing:\n tests/test_termui.py::test_progressbar_item_show_func","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01GBWBYJ4FrJjvqZidTCFjhT","tool":"Bash","input":{"command":"sed -n 325,375p tests/test_termui.py; .venv/bin/python -m pytest tests/test_termui.py -q -p no:randomly -k test_progressbar_item_show_func 2>&1 | grep -E \"^E\" | head"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01GBWBYJ4FrJjvqZidTCFjhT","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01VPF3RXn2rf4gtv9MDd4TnL","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/_termui_impl.py\"\ns = open(p).read()\nold = ''' for rv in self.iter:\n self.current_item = rv\n yield rv\n self.update(1)\n'''\nnew = ''' for rv in self.iter:\n self.current_item = rv\n\n # Render before the item is processed, so item_show_func shows the\n # item being worked on. Only at the beginning of an update\n # interval, so update_min_steps still limits how often it renders.\n if self._completed_intervals == 0:\n self.render_progress()\n\n yield rv\n self.update(1)\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\n.venv/bin/python -m pytest tests/test_termui.py -q -p no:randomly -k \"progressbar\" 2>&1 | tail -3\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now17.txt\nwc -l < $S/now17.txt; echo \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now17.txt\necho \"--- fixed this round:\"; comm -23 $S/now16.txt $S/now17.txt"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01VPF3RXn2rf4gtv9MDd4TnL","text":""}]},{"role":"assistant","text":"The target test passes. I'll check that the extra render respects `update_min_steps`, since rendering on every item would defeat it.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_017BmYG8dbvsue19REQuFgQX","tool":"Bash","input":{"command":".venv/bin/python - <<'EOF'\nimport io, click, click._termui_impl as impl\nimpl.isatty = lambda _: True\n\nfor steps in (1, 5):\n renders = []\n s = io.StringIO()\n with click.progressbar(range(20), update_min_steps=steps, item_show_func=lambda x: f\"item={x}\", file=s) as bar:\n orig = bar.render_progress\n bar.render_progress = lambda: (renders.append(bar.current_item), orig())[1]\n for _ in bar:\n pass\n print(f\"update_min_steps={steps}: {len(renders)} renders, current item at each: {renders}\")\nEOF"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_017BmYG8dbvsue19REQuFgQX","text":""}]},{"role":"assistant","text":"Issue 17 is fixed. `tests/test_termui.py::test_progressbar_item_show_func` passes, and nothing that passed before now fails. With a fixed `PYTHONHASHSEED` the suite is down to 14 failures from 86 at the start.\n\n**Cause:** in `ProgressBar.generator()` (`src/click/_termui_impl.py`), the bar set `current_item` when it took an item from the iterable and yielded it right away. The next render only happened after the loop body, inside `update(1)`. So while the body ran, the line on screen showed the previous item. For the first item that was `None`, giving `0% None item 0` instead of `0 item 0`.\n\n**Fix:** it now renders as soon as the item becomes current, before yielding it, so `item_show_func` sees the item being worked on. It only does this at the start of an update interval (`_completed_intervals == 0`), so `update_min_steps` still limits how often the bar redraws. I checked this with 20 items:\n\n| `update_min_steps` | renders | item at each render |\n|---|---|---|\n| 1 | 42 (about two per item) | each item shows up before its body runs |\n| 5 | 10 | items 0, 4, 5, 9, 10, 14, 15, 19, plus the first and last `None` renders |\n\nThe issue 9 changes, which apply pending steps so the bar lands on its total, still pass. The other progress-bar tests still pass too.\n\n`CHANGES.md` is untouched, as it already describes `item_show_func`.\n\nReady for issue 18.","toolUses":[]},{"role":"user","text":"Issue 18 of 20. Bug report.\n\nA deprecated command with empty help renders its deprecation label with a stray leading space.\n\nFailing:\n tests/test_commands.py::test_deprecated_empty_help_no_leading_space\n tests/test_options.py::test_deprecated_empty_help_no_leading_space","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_019dq7ZWSxU2q2d9aEWUDnk5","tool":"Bash","input":{"command":"grep -n \"def test_deprecated_empty_help_no_leading_space\" -B22 -A25 tests/test_commands.py tests/test_options.py; .venv/bin/python -m pytest tests/test_commands.py tests/test_options.py -q -p no:randomly -k test_deprecated_empty_help_no_leading_space 2>&1 | grep -E \"^(E |FAILED)\" | head -30"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_019dq7ZWSxU2q2d9aEWUDnk5","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01CnRo8iu96qVYAhNFJRSuhm","tool":"Bash","input":{"command":"grep -n \"_format_deprecated_label\\|_format_deprecated_suffix\" src/click/*.py; sed -n 96,116p src/click/core.py; grep -n \"def format_help_text\" -A25 src/click/core.py; grep -n \"def get_help_record\" -A50 src/click/core.py | grep -n \"deprecated\" "}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01CnRo8iu96qVYAhNFJRSuhm","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_016ENcYEogApcxuTcD5xWYQg","tool":"Bash","input":{"command":"sed -n 1270,1295p src/click/core.py; sed -n 3005,3025p src/click/core.py; sed -n 3720,3740p src/click/core.py; grep -n \"def get_help_record\\|def get_help_spec\" -A40 src/click/core.py | sed -n '/Option/,$p' | head -5; sed -n 3395,3470p src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_016ENcYEogApcxuTcD5xWYQg","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01GSfxd3n7JM3rsqsAmqw8aT","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/core.py\"\ns = open(p).read()\n\nold = '''def _format_deprecated_suffix(deprecated: bool | str) -> str:'''\nnew = '''def _add_deprecated_label(text: str, deprecated: bool | str) -> str:\n \"\"\"Append the deprecation label to a command's help ``text``. Without any\n text, the label stands alone, rather than after a space.\n \"\"\"\n label = _format_deprecated_label(deprecated)\n return f\"{_(text)} {label}\" if text else label\n\n\ndef _format_deprecated_suffix(deprecated: bool | str) -> str:'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = ''' text = f\"{_(text)} {_format_deprecated_label(self.deprecated)}\"\n'''\nnew = ''' text = _add_deprecated_label(text, self.deprecated)\n'''\nassert s.count(old) == 2\ns = s.replace(old, new)\n\nold = ''' help = f\"{help} {label}\" if help is not None else label\n'''\nnew = ''' help = f\"{help} {label}\" if help else label\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\nawk 'length > 88 {print FILENAME\": \"FNR\": \"length}' src/click/core.py\n.venv/bin/python -m pytest tests/test_commands.py tests/test_options.py -q -p no:randomly -k \"deprecated\" 2>&1 | tail -3\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now18.txt\nwc -l < $S/now18.txt; echo \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now18.txt\necho \"--- fixed this round:\"; comm -23 $S/now17.txt $S/now18.txt | sed 's/\\[.*//' | sort | uniq -c"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01GSfxd3n7JM3rsqsAmqw8aT","text":""}]},{"role":"assistant","text":"Both target tests pass. As a last check I'll look at the rendered output for the other affected surfaces: the subcommand listing, which uses the short help, and an option in `--help`.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_017HKdUba3eMX8E85QkhLjSp","tool":"Bash","input":{"command":".venv/bin/python - <<'EOF'\nimport click\nfrom click.testing import CliRunner\n\n@click.group()\ndef cli(): pass\n\n@cli.command(deprecated=True)\ndef old(): pass\n\n@cli.command(deprecated=\"use new\", help=\"Does the thing.\")\n@click.option(\"--flag\", deprecated=True, help=\"\")\n@click.option(\"--other\", deprecated=\"no more\")\ndef older(flag, other): pass\n\nr = CliRunner()\nprint(repr(r.invoke(cli, [\"--help\"]).output))\nprint(repr(r.invoke(cli, [\"old\", \"--help\"]).output))\nprint(repr(r.invoke(cli, [\"older\", \"--help\"]).output))\nEOF"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_017HKdUba3eMX8E85QkhLjSp","text":""}]},{"role":"assistant","text":"Issue 18 is fixed. All six failing cases now pass (four in `tests/test_commands.py`, two in `tests/test_options.py`), and nothing that passed before now fails. With a fixed `PYTHONHASHSEED` the suite is down to 8 failures from 86 at the start.\n\n**Cause:** in `src/click/core.py`, the deprecation label was joined to the help text with a space even when there was no text.\n- **Options:** `Option.__init__` used `if help is not None`, and an empty string isn't `None`. Empty help therefore became `\" (DEPRECATED)\"`.\n- **Commands:** `format_help_text` and `get_short_help_str` did `f\"{_(text)} {label}\"` unconditionally. In `--help` output that showed up as three spaces of indent instead of two.\n- **Arguments:** these already guarded on truthiness, so they were fine.\n\n**Fix:**\n- **`Option.__init__`:** it now checks truthiness, matching `Argument`.\n- **`_add_deprecated_label`:** a new helper for the two `Command` sites puts the label on its own when there's no text.\n- **`_(text)` guard:** the helper only calls `_()` on non-empty text. `gettext(\"\")` returns the translation catalog's header, so translating empty text wasn't safe.\n\nI checked the rendered output by hand. A deprecated command with no help shows ` (DEPRECATED)` at normal indentation. The same holds in its subcommand-list entry, and for a deprecated option with empty help. Help text that exists is unchanged.\n\n`CHANGES.md` untouched.\n\nReady for issue 19.","toolUses":[]},{"role":"user","text":"Issue 19 of 20. Feature request.\n\nImporting click should not import `typing_extensions` at runtime. The typing of `prompt` and `ParamType` currently relies on it; make that typing work without the runtime import.\n\nFailing:\n tests/test_imports.py::test_light_imports","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Wieb19EpvBYXjeBfCTdTih","tool":"Bash","input":{"command":"cat tests/test_imports.py; .venv/bin/python -m pytest tests/test_imports.py -q -p no:randomly 2>&1 | grep -E \"^(E |FAILED)\" | head; grep -n \"typing_extensions\" -r src/click/*.py pyproject.toml"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Wieb19EpvBYXjeBfCTdTih","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01QBHtHRwSCtNxmfGzjFpLvR","tool":"Bash","input":{"command":".venv/bin/python - <<'EOF'\nimport subprocess, sys, json, re\nsys.path.insert(0, \"tests\")\nimport test_imports as ti\nrv = subprocess.run([sys.executable, \"-\"], input=ti.IMPORT_TEST, capture_output=True).stdout.decode()\nfound = json.loads(rv)\nbad = sorted(m for m in found if not (m == \"click\" or m.startswith(\"click.\")) and m not in ti.ALLOWED_IMPORTS)\nprint(\"not allowed:\", bad)\nEOF\ngrep -n \"builtins\" src/click/*.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01QBHtHRwSCtNxmfGzjFpLvR","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01V1TmgoDAsLGRe8paXL36hh","tool":"Bash","input":{"command":"sed -n 1,50p src/click/types.py; sed -n 50,80p src/click/shell_completion.py; sed -n 24,50p src/click/termui.py; sed -n 125,160p src/click/termui.py; git log --oneline -3; git diff HEAD --stat"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01V1TmgoDAsLGRe8paXL36hh","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01PKaJVAEt6g9LdaX4mNRNMr","tool":"Bash","input":{"command":"sed -n 1,50p pyproject.toml; .venv/bin/python --version; grep -n \"typing.extensions\\|typing_extensions\" pyproject.toml docs/*.md CHANGES.md | head -20; ls ~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/.venv/lib/*/site-packages | grep -i typing"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01PKaJVAEt6g9LdaX4mNRNMr","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01A5Ureof2wvkBAseETT253h","tool":"Bash","input":{"command":"grep -n \"ParamType\\[\" src/click/*.py | grep -v \"^\\S*:\\s*[0-9]*:\\s*#\" | head -50; grep -n \"_InputT_contra\" src/click/*.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01A5Ureof2wvkBAseETT253h","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01DyBje3dwvuvrBgFaLqgZpp","tool":"Bash","input":{"command":"for v in 3.10 3.11 3.12 3.13; do which python$v 2>/dev/null; done; ls ~/.pyenv/versions 2>/dev/null; which uv 2>/dev/null && uv python list --only-installed 2>/dev/null | head; ls /opt/homebrew/bin 2>/dev/null | grep -i \"^python3\" | head; ls /Library/Frameworks/Python.framework/Versions 2>/dev/null"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01F5GxdWnGNVDeDsMSY6dGqA","tool":"Bash","input":{"command":"sed -n 49,70p src/click/types.py; sed -n 205,262p src/click/types.py; grep -n \"_is_expected_type\" src/click/*.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01DyBje3dwvuvrBgFaLqgZpp","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01F5GxdWnGNVDeDsMSY6dGqA","text":""}]},{"role":"assistant","text":"Python 3.11, 3.12 and 3.13 are installed through `uv`, so I can test the below-3.13 case directly. First I'll confirm the real problem on 3.12.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01KBcLfF26k9MfeTMSEodqpH","tool":"Bash","input":{"command":"P312=~/.local/share/uv/python/cpython-3.12-macos-aarch64-none/bin/python3.12; P311=~/.local/share/uv/python/cpython-3.11-macos-aarch64-none/bin/python3.11; for P in $P311 $P312; do PYTHONPATH=src $P -c \"import click; print(click.__name__, 'imported')\" 2>&1 | tail -2; done; $P312 -c \"import typing_extensions\" 2>&1 | tail -1"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01KBcLfF26k9MfeTMSEodqpH","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Frucf26w71w1Wz3TfpKHkn","tool":"Bash","input":{"command":"sed -n 62,80p src/click/_winconsole.py; grep -n \"sys\\.\\|TypeVar\" src/click/types.py | head -20; sed -n 240,256p src/click/termui.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Frucf26w71w1Wz3TfpKHkn","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01N3v2DsuJYQXr3r9vadkkWT","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/types.py\"\ns = open(p).read()\n\nold = '''# TypeVar(default=...) support.\nif sys.version_info >= (3, 13):\n from typing import TypeVar\nelse:\n from typing_extensions import TypeVar\n\nif t.TYPE_CHECKING:\n import typing_extensions as te\n'''\nnew = '''if t.TYPE_CHECKING:\n import typing_extensions as te\n\n # TypeVar(default=...) support. It only exists for type checkers: at runtime\n # this would need Python 3.13, or importing typing_extensions.\n from typing_extensions import TypeVar\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = '''_InputT_contra = TypeVar(\"_InputT_contra\", contravariant=True, default=t.Any)\n'''\nnew = '''\nif t.TYPE_CHECKING:\n _InputT_contra = TypeVar(\"_InputT_contra\", contravariant=True, default=t.Any)\nelse:\n _InputT_contra = t.TypeVar(\"_InputT_contra\", contravariant=True)\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\nsed -n 20,45p src/click/types.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01N3v2DsuJYQXr3r9vadkkWT","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Kaio99jVTJhB8vA7CBub4v","tool":"Bash","input":{"command":"sed -n 52,125p src/click/types.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Kaio99jVTJhB8vA7CBub4v","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_019WPtoH4GbUdywd6hamoCPm","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/types.py\"\ns = open(p).read()\n\nold = ''' #: the descriptive name of this type\n name: str\n\n #: if a list of this type is expected and the value is pulled from a\n'''\nnew = ''' if not t.TYPE_CHECKING:\n\n def __class_getitem__(cls, params: t.Any) -> t.Any:\n # ``_InputT_contra`` only has a default for type checkers, as a\n # default at runtime needs Python 3.13, or importing typing_extensions.\n # Fill it in here, so ``ParamType[int]`` still works.\n if not isinstance(params, tuple):\n params = (params,)\n\n missing = cls.__parameters__[len(params) :]\n\n if missing and all(p is _InputT_contra for p in missing):\n params += (t.Any,) * len(missing)\n\n return super().__class_getitem__(params)\n\n #: the descriptive name of this type\n name: str\n\n #: if a list of this type is expected and the value is pulled from a\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\n\np = \"src/click/termui.py\"\ns = open(p).read()\nold = \"import builtins\\nimport collections.abc as cabc\\n\"\nnew = \"import collections.abc as cabc\\n\"\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = '''def _is_expected_type(\n default: object,\n type: ParamType[V, t.Any] | V | None,\n) -> TypeIs[V]:\n return builtins.type(default) is builtins.type(type)\n'''\nnew = '''def _is_expected_type(\n default: object,\n type_: ParamType[V, t.Any] | V | None,\n) -> TypeIs[V]:\n return type(default) is type(type_)\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = \"_is_expected_type(default=default, type=type)\"\nnew = \"_is_expected_type(default=default, type_=type)\"\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\ngrep -n \"^import sys\\|sys\\.\" src/click/types.py | head -3; awk 'length > 88 {print FILENAME\": \"FNR\": \"length}' src/click/types.py src/click/termui.py\n.venv/bin/python -m pytest tests/test_imports.py -q -p no:randomly 2>&1 | tail -3"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_019WPtoH4GbUdywd6hamoCPm","text":""}]},{"role":"assistant","text":"The import test passes. Now the real check: importing click and using `ParamType[...]` on Python 3.11, 3.12 and 3.13, where `typing_extensions` isn't installed.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01MstwxsTBZTrm9aBneRwvxn","tool":"Bash","input":{"command":"git blame -s -L415,415 src/click/types.py | cut -c1-30\nfor V in 3.11 3.12 3.13; do\nP=~/.local/share/uv/python/cpython-$V-macos-aarch64-none/bin/python$V\nPYTHONPATH=src $P - <<'EOF'\nimport sys, typing as t\nimport click\nfrom click.types import ParamType, CompositeParamType\n\nassert \"typing_extensions\" not in sys.modules\na = ParamType[int]\nb = ParamType[int, str]\nT = t.TypeVar(\"T\")\nc = ParamType[T]\n\nclass MyType(ParamType[int]):\n name = \"my\"\n def convert(self, value, param, ctx):\n return int(value)\n\n@click.command()\n@click.option(\"--n\", type=MyType())\n@click.option(\"--d\", type=click.DateTime([\"%Y\"]))\n@click.argument(\"c\", type=click.Choice([\"x\", \"y\"]), required=False)\ndef cli(n, d, c): click.echo(repr((n, d and d.year, c)))\n\nfrom click.testing import CliRunner\nr = CliRunner().invoke(cli, [\"--n\", \"3\", \"--d\", \"2024\", \"x\"])\nprint(f\"py{sys.version_info[0]}.{sys.version_info[1]}: {a}, {b}, params of ParamType[T]={c.__args__} ->\", r.output.strip())\nfor bad in (lambda: ParamType[()], lambda: CompositeParamType[int, int, int]):\n try: bad(); print(\" no error?!\")\n except TypeError as e: pass\nEOF\ndone"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01MstwxsTBZTrm9aBneRwvxn","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01BUVwkSncmsQAzrf7xF5qgV","tool":"Bash","input":{"command":"S=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nP312=~/.local/share/uv/python/cpython-3.12-macos-aarch64-none/bin/python3.12\nPYTHONHASHSEED=0 PYTHONPATH=src:.venv/lib/python3.14/site-packages $P312 -m pytest -q -p no:randomly -p no:cacheprovider 2>&1 | tail -8\necho \"=== 3.14 ===\"\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now19.txt\nwc -l < $S/now19.txt; echo \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now19.txt\necho \"--- fixed this round:\"; comm -23 $S/now18.txt $S/now19.txt"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01BUVwkSncmsQAzrf7xF5qgV","text":""}]},{"role":"assistant","text":"On 3.12 the suite gives the same result as on 3.14, with only 7 failures left. I'll confirm the two sets match exactly.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01GdP4jGC7Nvhz7qbu49vHyA","tool":"Bash","input":{"command":"S=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nfor V in 3.11 3.12; do P=~/.local/share/uv/python/cpython-$V-macos-aarch64-none/bin/python$V\nPYTHONHASHSEED=0 PYTHONPATH=src:.venv/lib/python3.14/site-packages $P -m pytest -q -p no:randomly -p no:cacheprovider 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/py$V.txt\necho \"py$V: $(wc -l < $S/py$V.txt) failures; differs from 3.14 set: $(diff -q $S/py$V.txt $S/now19.txt >/dev/null && echo no || echo YES)\"; done; cat $S/now19.txt | sed 's/\\[.*//' | sort | uniq -c"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01GdP4jGC7Nvhz7qbu49vHyA","text":""}]},{"role":"assistant","text":"Issue 19 is fixed. `tests/test_imports.py::test_light_imports` passes, and nothing that passed before now fails. I also ran the whole suite on Python 3.11 and 3.12, and it gives the same result as on 3.14. With a fixed `PYTHONHASHSEED` the suite is down to 7 failures from 86 at the start.\n\nThe requirement had two parts, and the failing test only caught one.\n\n- **What the test caught:** `termui.py` did `import builtins` so `_is_expected_type` could reach the real `type` while a parameter named `type` shadowed it. I renamed that private parameter to `type_` and dropped the import.\n- **What it didn't:** `types.py` ran `from typing_extensions import TypeVar` on Python below 3.13. Click declares no dependencies and `typing_extensions` isn't installed here. I confirmed that `import click` crashed on both 3.11 and 3.12 with `ModuleNotFoundError`. The test passed on this 3.14 environment only because the import is skipped on 3.13+.\n\n**Fix (`src/click/types.py`):**\n- **Type checkers:** the `TypeVar(default=...)` import from `typing_extensions` now sits under `TYPE_CHECKING`, so they see the same default as before. The shell-completion module already used this pattern.\n- **Runtime:** the type variable is a plain `typing.TypeVar`. A small `ParamType.__class_getitem__` fills in the missing second parameter with `Any`, so `ParamType[int]`, which the built-in types use as base classes and the docs recommend, still works. It behaves identically on every Python version.\n- **Left alone:** other subscripts, such as `ParamType[int, str]`, and malformed ones such as `ParamType[()]` are passed on or rejected as before.\n\nI imported click and used `ParamType[...]`, a custom subclass, `DateTime` and `Choice` on 3.11, 3.12 and 3.13 without `typing_extensions`.\n\nRuff and mypy aren't installed, so the type-checker side (the `TYPE_CHECKING` branch and the `__class_getitem__` shim) is unchecked.\n\n`CHANGES.md` doesn't mention this, and I left it alone.\n\nReady for issue 20.","toolUses":[]},{"role":"user","text":"Issue 20 of 20. Bug report.\n\n`HelpFormatter.write_usage` produces spurious characters when there are no arguments.\n\nFailing:\n tests/test_formatting.py::test_command_write_usage_no_args\n tests/test_formatting.py::test_help_formatter_write_usage_without_args_styled_prefix\n tests/test_formatting.py::test_help_formatter_write_usage","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Fh3irVDAqxG9Qj83osktJz","tool":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_formatting.py -q -p no:randomly 2>&1 | grep -E \"^(E |FAILED)\" | head -40; grep -n \"def test_help_formatter_write_usage\\b\" -B40 -A20 tests/test_formatting.py | head -150"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01LuhRVwP6SZDdvrxbhuA7Nw","tool":"Bash","input":{"command":"grep -n \"def write_usage\" -B3 -A45 src/click/formatting.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Fh3irVDAqxG9Qj83osktJz","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01LuhRVwP6SZDdvrxbhuA7Nw","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_016JJ8yF3aJzJmDpM1kmB4qW","tool":"Bash","input":{"command":"sed -n 500,545p tests/test_formatting.py; sed -n 593,680p tests/test_formatting.py; grep -n \"def wrap_text\" -A60 src/click/formatting.py | head -90"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_016JJ8yF3aJzJmDpM1kmB4qW","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_0136DB9iPjQMKqN8eNzW99bz","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/formatting.py\"\ns = open(p).read()\nold = ''' if prefix is None:\n prefix = \"{usage} \".format(usage=_(\"Usage:\"))\n\n usage_prefix = f\"{prefix:>{self.current_indent}}{prog} \"\n text_width = self.width - self.current_indent\n'''\nnew = ''' if prefix is None:\n prefix = \"{usage} \".format(usage=_(\"Usage:\"))\n\n if not args.strip():\n # There is nothing to wrap, and wrapping an empty text would drop the\n # prefix. Write the program name alone, without a separator after it.\n self.write(f\"{prefix:>{self.current_indent}}{prog}\\\\n\")\n return\n\n usage_prefix = f\"{prefix:>{self.current_indent}}{prog} \"\n text_width = self.width - self.current_indent\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\nawk 'length > 88 {print FILENAME\": \"FNR\": \"length}' src/click/formatting.py\n.venv/bin/python -m pytest tests/test_formatting.py -q -p no:randomly 2>&1 | tail -3\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | tail -3\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now20.txt\nwc -l < $S/now20.txt; echo \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now20.txt\necho \"--- fixed this round:\"; comm -23 $S/now19.txt $S/now20.txt | sed 's/\\[.*//' | sort | uniq -c"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_0136DB9iPjQMKqN8eNzW99bz","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Gzf3APj5rousCUWYmBir1o","tool":"Bash","input":{"command":"echo \"== default settings, random hash seeds ==\"; for i in 1 2 3 4 5; do .venv/bin/python -m pytest -q 2>&1 | tail -1; done\necho \"== other interpreters ==\"\nfor V in 3.11 3.12 3.13; do P=~/.local/share/uv/python/cpython-$V-macos-aarch64-none/bin/python$V\necho -n \"py$V: \"; PYTHONPATH=src:.venv/lib/python3.14/site-packages $P -m pytest -q -p no:cacheprovider 2>&1 | tail -1; done\necho \"== what changed ==\"; git status --short; git diff --stat | tail -1; echo \"tests touched: $(git status --short tests | wc -l)\""}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Gzf3APj5rousCUWYmBir1o","text":""}]},{"role":"assistant","text":"Issue 20 is fixed, which finishes all 20 issues. The full suite is green: **2058 passed, 25 skipped, 1 xfailed, 0 failed**. It passed 5 out of 5 runs with random hash seeds, and also on Python 3.11, 3.12 and 3.13. The run started at 86 failures.\n\n**Issue 20:** `HelpFormatter.write_usage` in `src/click/formatting.py` passed an empty `args` to `wrap_text`, which returns an empty string and drops the prefix. A command with no arguments printed a blank line instead of `Usage: cli`. In the wrap branch it printed a trailing space and an extra empty line. When there are no arguments, it now writes the prefix and program name directly, with no trailing separator. A styled prefix keeps its ANSI codes.\n\n**Where things stand:**\n- **Files:** 10 files changed, all in `src/click`. No test was modified, skipped or deleted, and `CHANGES.md` is untouched (the changelog already covers most of these).\n- **Coverage:** 44 target tests across the 20 issues now pass.\n- **Regression checks:** after every issue I diffed the failure list against the original baseline with a fixed hash seed, and nothing that had passed ever failed.\n\n**Judgment calls to look over:**\n- **Issue 3 (optional `Choice`/`DateTime` brackets):** a required `DateTime` argument still shows its own `[...]`, which reads as optional. That's separate from the issue, so I left it.\n- **Issue 12 (pager option parsing):** `less`'s `-+R` and `-!R` reset forms are not special-cased and would be read as requesting raw mode.\n- **Issue 10 (generated command names):** I added a guard so a function named `_cmd` keeps its name instead of becoming an empty command name.\n- **Issue 19 (`typing_extensions`):** I couldn't run ruff or mypy, since neither is installed, so the type-checker side is unchecked. The runtime side is tested on 3.11–3.14.\n\nThe `CHANGES.md` entries I first added for issues 3, 4, 5 and 6 turned out to duplicate ones the file already had, so I reverted them, as I mentioned earlier. Nothing is committed. All the changes are in the working tree for you to review.","toolUses":[]}]],"steps":[{"n":0,"segment":0,"pos":1,"turn":0,"index":0,"stop_reason":"end_turn","context":38276,"step":{"text":"Understood. For each issue I'll fix the code in `src/click` only, leave tests untouched, and run the full suite with `.venv/bin/python -m pytest` to confirm nothing that currently works breaks.\n\nSend the first issue when you're ready.","calls":[]}},{"n":1,"segment":0,"pos":3,"turn":1,"index":0,"stop_reason":"tool_use","context":38435,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_utils/test_echo.py -x -q 2>&1 | tail -30"}},{"name":"Grep","input":{"pattern":"def echo","path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click","output_mode":"content"}}]}},{"n":2,"segment":0,"pos":7,"turn":1,"index":1,"stop_reason":"tool_use","context":39272,"step":{"text":"","calls":[{"name":"Read","input":{"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/utils.py","offset":245,"limit":115}},{"name":"Grep","input":{"pattern":"def test_echo_custom_file","path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/tests/test_utils/test_echo.py","output_mode":"content","-A":12}}]}},{"n":3,"segment":0,"pos":11,"turn":1,"index":2,"stop_reason":"tool_use","context":41404,"step":{"text":"","calls":[{"name":"Edit","input":{"replace_all":false,"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/utils.py","old_string":" out = out or \"\"\n if isinstance(out, str):","new_string":" if out is None:\n out = \"\"\n\n if isinstance(out, str):"}}]}},{"n":4,"segment":0,"pos":13,"turn":1,"index":3,"stop_reason":"tool_use","context":42128,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest -q 2>&1 | tail -15"}}]}},{"n":5,"segment":0,"pos":15,"turn":1,"index":4,"stop_reason":"tool_use","context":42880,"step":{"text":"The suite has 84 failures, which are presumably the other open issues. To check I didn't add any, I'll compare against the baseline without my change.","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest -q 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > \"$TMPDIR/after.txt\" 2>/dev/null || true; S=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad; .venv/bin/python -m pytest -q 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/after.txt; git stash -q; .venv/bin/python -m pytest -q 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/before.txt; git stash pop -q; wc -l $S/before.txt $S/after.txt; echo \"--- newly failing:\"; comm -13 $S/before.txt $S/after.txt; echo \"--- newly passing:\"; comm -23 $S/before.txt $S/after.txt; git status --short"}}]}},{"n":6,"segment":0,"pos":18,"turn":1,"index":5,"stop_reason":"end_turn","context":43681,"step":{"text":"Issue 1 is fixed. `tests/test_utils/test_echo.py::test_echo_custom_file` now passes, and no test that passed before now fails.\n\n**Cause:** in `click.echo` (`src/click/utils.py`), the newline step did `out = out or \"\"`. Empty bytes are falsy, so `b\"\"` was replaced with the str `\"\"`. The newline was then appended as a str, and writing that to a `BytesIO` raised `TypeError: a bytes-like object is required, not 'str'`.\n\n**Fix:** only `None` is now replaced with `\"\"`. Empty bytes stay bytes and get `b\"\\n\"` appended, so `click.echo(b\"\", b)` writes `b\"\\n\"`.\n\nThe full suite went from 85 failures to 84, and the one that went away is the target test. The other 84 were already failing and I haven't touched them, so I'm assuming they belong to the remaining issues.\n\nReady for issue 2.","calls":[]}},{"n":7,"segment":0,"pos":20,"turn":2,"index":0,"stop_reason":"tool_use","context":44270,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"cat tests/test_abort_interrupt.py; .venv/bin/python -m pytest tests/test_abort_interrupt.py -q 2>&1 | tail -60"}},{"name":"Grep","input":{"pattern":"def main\\(","path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/core.py","output_mode":"content"}}]}},{"n":8,"segment":0,"pos":24,"turn":2,"index":1,"stop_reason":"tool_use","context":47912,"step":{"text":"","calls":[{"name":"Read","input":{"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/core.py","offset":1410,"limit":180}}]}},{"n":9,"segment":0,"pos":26,"turn":2,"index":2,"stop_reason":"tool_use","context":50968,"step":{"text":"","calls":[{"name":"Grep","input":{"pattern":"KeyboardInterrupt|Abort","path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click","output_mode":"content","-n":true}},{"name":"Bash","input":{"command":"grep -n \"3802\\|Ctrl-C\\|interrupt\" CHANGES.rst | head -20; git log --oneline | head -5"}}]}},{"n":10,"segment":0,"pos":30,"turn":2,"index":3,"stop_reason":"tool_use","context":53939,"step":{"text":"","calls":[{"name":"Read","input":{"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/_termui_impl.py","offset":545,"limit":70}},{"name":"Bash","input":{"command":"ls; ls docs 2>/dev/null | head -30; sed -n 1,40p CHANGES.md 2>/dev/null"}}]}},{"n":11,"segment":0,"pos":34,"turn":2,"index":4,"stop_reason":"tool_use","context":56520,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 1,75p src/click/core.py; grep -n \"^def \\|^class \" src/click/core.py | head -30"}}]}},{"n":12,"segment":0,"pos":36,"turn":2,"index":5,"stop_reason":"tool_use","context":62284,"step":{"text":"Working on issue 2. I've read `Command.main` and I'm now adding guards so a second Ctrl-C can't replace the exit code.","calls":[{"name":"Edit","input":{"replace_all":false,"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/core.py","old_string":"from contextlib import ExitStack\nfrom functools import update_wrapper","new_string":"from contextlib import ExitStack\nfrom contextlib import suppress\nfrom functools import update_wrapper"}},{"name":"Edit","input":{"replace_all":false,"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/core.py","old_string":"def batch(iterable: cabc.Iterable[V], batch_size: int) -> list[tuple[V, ...]]:","new_string":"def _exit(code: int) -> t.NoReturn:\n \"\"\"Exit with ``code``, even if Ctrl-C arrives while the exit is\n propagating. By then the outcome is decided, so an interrupt must not\n replace it.\n \"\"\"\n while True:\n try:\n sys.exit(code)\n except KeyboardInterrupt:\n pass\n\n\ndef _exit_aborted() -> t.NoReturn:\n \"\"\"Report an abort and exit with code 1. The message is best effort:\n a late Ctrl-C may lose it, but not the exit code.\n \"\"\"\n with suppress(KeyboardInterrupt):\n echo(_(\"Aborted!\"), file=sys.stderr)\n\n _exit(1)\n\n\ndef batch(iterable: cabc.Iterable[V], batch_size: int) -> list[tuple[V, ...]]:"}}]}},{"n":13,"segment":0,"pos":41,"turn":2,"index":6,"stop_reason":"tool_use","context":63252,"step":{"text":"Now `Command.main` itself.","calls":[{"name":"Edit","input":{"replace_all":false,"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/core.py","old_string":" except (EOFError, KeyboardInterrupt) as e:\n echo(file=sys.stderr)\n raise Abort() from e\n except ClickException as e:\n if not standalone_mode:\n raise\n e.show()\n sys.exit(e.exit_code)\n except OSError as e:\n if e.errno == errno.EPIPE:\n sys.stdout = t.cast(t.TextIO, _PacifyFlushWrapper(sys.stdout))\n sys.stderr = t.cast(t.TextIO, _PacifyFlushWrapper(sys.stderr))\n sys.exit(1)\n else:\n raise\n except Exit as e:\n if standalone_mode:\n sys.exit(e.exit_code)\n else:","new_string":" except (EOFError, KeyboardInterrupt) as e:\n if not standalone_mode:\n echo(file=sys.stderr)\n raise Abort() from e\n\n with suppress(KeyboardInterrupt):\n echo(file=sys.stderr)\n\n _exit_aborted()\n except ClickException as e:\n if not standalone_mode:\n raise\n\n with suppress(KeyboardInterrupt):\n e.show()\n\n _exit(e.exit_code)\n except OSError as e:\n if e.errno == errno.EPIPE:\n sys.stdout = t.cast(t.TextIO, _PacifyFlushWrapper(sys.stdout))\n sys.stderr = t.cast(t.TextIO, _PacifyFlushWrapper(sys.stderr))\n _exit(1)\n else:\n raise\n except Exit as e:\n if standalone_mode:\n _exit(e.exit_code)\n else:"}},{"name":"Edit","input":{"replace_all":false,"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/core.py","old_string":" if not standalone_mode:\n raise\n echo(_(\"Aborted!\"), file=sys.stderr)\n sys.exit(1)","new_string":" if not standalone_mode:\n raise\n\n _exit_aborted()"}}]}},{"n":14,"segment":0,"pos":46,"turn":2,"index":7,"stop_reason":"tool_use","context":64397,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_abort_interrupt.py -q 2>&1 | tail -15\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\n.venv/bin/python -m pytest -q 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/after2.txt\necho \"--- newly failing vs issue-1 state:\"; comm -13 $S/after.txt $S/after2.txt\necho \"--- newly passing:\"; comm -23 $S/after.txt $S/after2.txt\nwc -l < $S/after2.txt"}}]}},{"n":15,"segment":0,"pos":48,"turn":2,"index":8,"stop_reason":"tool_use","context":65003,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"(.venv/bin/python -m ruff check src/click/core.py 2>&1 || true) | tail -5; (.venv/bin/python -m mypy src/click/core.py 2>&1 || true) | tail -3; git diff --stat"}}]}},{"n":16,"segment":0,"pos":50,"turn":2,"index":9,"stop_reason":"end_turn","context":65533,"step":{"text":"Issue 2 is fixed. All three named tests pass, including every parametrization of `test_interrupt_while_reporting_abort`, and no test that passed before now fails. The full suite is down from 84 failures to 79.\n\n**Cause:** in `Command.main` (`src/click/core.py`), the abort message, the error report and the final exit each ran inside an `except` clause, so a second Ctrl-C landing there had no handler. That includes `echo(...)` (which calls `isatty()`), `e.show()` and `sys.exit(...)`.\n\n**Fix:** in standalone mode, the exit code that was already decided now wins over a late Ctrl-C, and the message is best effort.\n- **Exit:** a new `_exit(code)` helper retries `sys.exit(code)` if a `KeyboardInterrupt` arrives during it. It loops rather than retrying once, so repeated Ctrl-C can't get through either. This covers success, `ClickException`, `Exit`, `Abort` and the EPIPE path.\n- **Abort message:** a new `_exit_aborted()` helper writes `Aborted!` and exits 1. An interrupt during the write loses the message but not the exit code. The `Aborted!` text is unchanged.\n- **Blank line and `e.show()`:** both are wrapped in `suppress(KeyboardInterrupt)`.\n- **Standalone abort path:** it now exits directly instead of raising `Abort()` and relying on the outer handler.\n- **Non-standalone mode:** it is unchanged. The first interrupt still reaches the caller as `Abort`, and a late one propagates as `KeyboardInterrupt`, which `test_late_interrupt_with_disabled_standalone_mode` covers.\n\n`CHANGES.md` already had an entry for this issue (#3802), so I left it alone. Ruff and mypy aren't installed in the venv, so I couldn't run them on the change.\n\nReady for issue 3.","calls":[]}},{"n":17,"segment":0,"pos":52,"turn":3,"index":0,"stop_reason":"tool_use","context":66295,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_basic.py -q -k \"optional_metavar\" 2>&1 | tail -40; grep -n \"optional_metavar\" -B3 -A22 tests/test_basic.py | head -80"}},{"name":"Grep","input":{"pattern":"def make_metavar","path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click","output_mode":"content","-n":true,"-A":25}}]}},{"n":18,"segment":0,"pos":56,"turn":3,"index":1,"stop_reason":"tool_use","context":69645,"step":{"text":"Now the types' `get_metavar` implementations, so I can see where the brackets come from.","calls":[{"name":"Bash","input":{"command":"grep -n \"def get_metavar\" -A32 src/click/types.py | head -150; sed -n 640,650p tests/test_basic.py; sed -n 672,676p tests/test_basic.py"}}]}},{"n":19,"segment":0,"pos":59,"turn":3,"index":2,"stop_reason":"tool_use","context":71537,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -rn \"get_metavar\\|make_metavar\" src tests docs --include=*.py --include=*.md | grep -v \"^src/click/core.py.*def \\|^src/click/types.py.*def \""}},{"name":"Bash","input":{"command":"grep -rn \"DateTime\" tests | grep -i \"argument\\|metavar\\|usage\" | head; sed -n 500,530p src/click/types.py; grep -n \"8.5.1\" -A12 CHANGES.md | head -20"}}]}},{"n":20,"segment":0,"pos":63,"turn":3,"index":3,"stop_reason":"tool_use","context":75332,"step":{"text":"","calls":[{"name":"Grep","input":{"pattern":"get_metavar|make_metavar","path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet","glob":"!.venv/**","output_mode":"content","-n":true}}]}},{"n":21,"segment":0,"pos":65,"turn":3,"index":4,"stop_reason":"tool_use","context":76090,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 300,345p tests/test_formatting.py; sed -n 25,75p docs/support-multiple-versions.md"}}]}},{"n":22,"segment":0,"pos":67,"turn":3,"index":5,"stop_reason":"tool_use","context":77270,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -rn '!\\]\\|!\"' tests/*.py tests/**/*.py | grep -i \"usage\\|\\[\\|deprec\" | head -20; sed -n 3650,3675p src/click/core.py"}}]}},{"n":23,"segment":0,"pos":69,"turn":3,"index":6,"stop_reason":"tool_use","context":79370,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 1,30p CHANGES.md | grep -n -i \"bracket\\|metavar\\|choice\"; git diff HEAD --stat -- CHANGES.md"}}]}},{"n":24,"segment":0,"pos":71,"turn":3,"index":7,"stop_reason":"tool_use","context":80211,"step":{"text":"","calls":[{"name":"Edit","input":{"replace_all":false,"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/core.py","old_string":" var = self.type.get_metavar(param=self, ctx=ctx)\n if not var:\n var = self.name.upper()\n if self.deprecated:\n var += \"!\"\n if not self.required:\n var = f\"[{var}]\"","new_string":" var = self.type.get_metavar(param=self, ctx=ctx)\n if not var:\n var = self.name.upper()\n # Types like Choice and DateTime already wrap their metavar in square\n # brackets. Reuse them for an optional argument instead of doubling.\n if not self.required and _is_bracketed(var):\n var = var[1:-1]\n if self.deprecated:\n var += \"!\"\n if not self.required:\n var = f\"[{var}]\""}},{"name":"Edit","input":{"replace_all":false,"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/core.py","old_string":"def batch(iterable: cabc.Iterable[V], batch_size: int) -> list[tuple[V, ...]]:","new_string":"def _is_bracketed(value: str) -> bool:\n \"\"\"Whether a single pair of square brackets encloses all of ``value``.\n ``[a]|[b]`` is not enclosed, ``[a|[b]]`` is.\n \"\"\"\n depth = 0\n\n for i, char in enumerate(value):\n if char == \"[\":\n depth += 1\n elif char == \"]\":\n depth -= 1\n\n if depth == 0:\n return i == len(value) - 1\n elif depth == 0:\n return False\n\n return False\n\n\ndef batch(iterable: cabc.Iterable[V], batch_size: int) -> list[tuple[V, ...]]:"}},{"name":"Edit","input":{"replace_all":false,"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/CHANGES.md","old_string":"- Add {meth}`Option.get_help_spec`, which returns the option's left help","new_string":"- An optional {class}`Argument` with a {class}`Choice` or {class}`DateTime` type is\n shown as `[a|b]` in the usage line, not `[[a|b]]`. The type's brackets are\n reused, so `nargs=-1` shows `[a|b]...`.\n- Add {meth}`Option.get_help_spec`, which returns the option's left help"}}]}},{"n":25,"segment":0,"pos":77,"turn":3,"index":8,"stop_reason":"tool_use","context":81658,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_basic.py -q -k \"optional_metavar\" 2>&1 | tail -5\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\n.venv/bin/python -m pytest -q 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/after3.txt\necho \"--- newly failing:\"; comm -13 $S/after2.txt $S/after3.txt\necho \"--- newly passing:\"; comm -23 $S/after2.txt $S/after3.txt\nwc -l < $S/after3.txt\n.venv/bin/python - <<'EOF'\nimport click\nfrom click.core import _is_bracketed\nfor v in [\"[a|b]\", \"[a]|[b]\", \"[a|[b]]\", \"a\", \"\", \"[a]!\", \"[\", \"]\"]:\n print(repr(v), _is_bracketed(v))\n\n@click.command()\n@click.argument(\"m\", type=click.Choice([\"foo\",\"bar\"]), required=False, deprecated=True)\n@click.argument(\"n\", type=click.Choice([\"x\",\"y\"]))\ndef cli(m, n): pass\ncli.main([\"--help\"], standalone_mode=False)\nEOF"}}]}},{"n":26,"segment":0,"pos":79,"turn":3,"index":9,"stop_reason":"end_turn","context":82757,"step":{"text":"Issue 3 is fixed. Both named tests pass, and no test that passed before now fails. The full suite is down from 79 failures to 77.\n\n**Cause:** `Choice.get_metavar` and `DateTime.get_metavar` already return their choices or formats wrapped in `[...]`. For an optional argument (`required=False`, or `nargs=-1`, which is optional by default), `Argument.make_metavar` in `src/click/core.py` then added a second pair, giving `[[foo|bar|baz]]`.\n\n**Fix:** for an optional argument, `Argument.make_metavar` now strips the type's own outer brackets before adding its own, so there is only one pair.\n- **Usage lines:** optional shows `[foo|bar|baz]` and variadic shows `[foo|bar|baz]...`.\n- **Enclosing check:** it only strips when one pair of brackets encloses the whole metavar. `[a]|[b]` and `[KEY]=[VALUE]` from a custom type are left alone, because a plain start/end check would misread them.\n- **Deprecated arguments:** the `!` marker goes inside the brackets, as `[foo|bar!]`, matching the existing `[F!]` form. A deprecated optional `Choice` argument used to render as `[[foo|bar]!]`.\n- **Not touched:** required `Choice` arguments still use `{a|b}`. A required `DateTime` argument still shows its own `[...]`, which reads as optional but isn't part of this issue. Options are also unchanged.\n\nI added a `CHANGES.md` entry under 8.5.1, since this issue had none pre-written (issue 2's did).\n\nReady for issue 4.","calls":[]}},{"n":27,"segment":0,"pos":81,"turn":4,"index":0,"stop_reason":"tool_use","context":83488,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_termui.py -q -k \"test_edit_pathlib\" 2>&1 | tail -40; grep -n \"test_edit_pathlib\" -B6 -A30 tests/test_termui.py"}},{"name":"Grep","input":{"pattern":"def edit\\(|class Editor|def edit_files|def edit\\b","path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click","output_mode":"content","-n":true}}]}},{"n":28,"segment":0,"pos":85,"turn":4,"index":1,"stop_reason":"tool_use","context":85713,"step":{"text":"","calls":[{"name":"Read","input":{"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/termui.py","offset":795,"limit":115}},{"name":"Read","input":{"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/_termui_impl.py","offset":625,"limit":130}}]}},{"n":29,"segment":0,"pos":89,"turn":4,"index":2,"stop_reason":"tool_use","context":89469,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 1,40p src/click/termui.py; grep -n \"edit_files\" -r src tests | head"}}]}},{"n":30,"segment":0,"pos":91,"turn":4,"index":3,"stop_reason":"tool_use","context":90723,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'EOF'\nimport re\np = \"src/click/termui.py\"\ns = open(p).read()\n\ns = s.replace(\"import itertools\\nimport re\\n\", \"import itertools\\nimport os\\nimport re\\n\", 1)\n\nold_ann = \" filename: str | cabc.Iterable[str] | None = None,\\n\"\nnew_ann = (\n \" filename: str\\n\"\n \" | os.PathLike[str]\\n\"\n \" | cabc.Iterable[str | os.PathLike[str]]\\n\"\n \" | None = None,\\n\"\n)\nassert s.count(old_ann) == 2\ns = s.replace(old_ann, new_ann)\n\ns = s.replace(\n\"\"\" :param filename: if provided it will edit this file instead of the\n provided text contents. It will not use a temporary\n file as an indirection in that case. If the editor supports\n editing multiple files at once, a sequence of files may be\n passed as well. Invoke `click.file` once per file instead\n if multiple files cannot be managed at once or editing the\n files serially is desired.\n\n .. versionchanged:: 8.2.0\n\"\"\",\n\"\"\" :param filename: if provided it will edit this file instead of the\n provided text contents. It will not use a temporary\n file as an indirection in that case. If the editor supports\n editing multiple files at once, a sequence of files may be\n passed as well. Invoke `click.file` once per file instead\n if multiple files cannot be managed at once or editing the\n files serially is desired.\n\n .. versionchanged:: 8.5.1\n ``filename`` accepts :class:`os.PathLike` values, such as\n :class:`pathlib.Path`, alone or in a sequence.\n\n .. versionchanged:: 8.2.0\n\"\"\", 1)\n\ns = s.replace(\n\"\"\" if isinstance(filename, str):\n filename = (filename,)\n\n ed.edit_files(filenames=filename)\"\"\",\n\"\"\" if isinstance(filename, (str, os.PathLike)):\n filename = (filename,)\n\n ed.edit_files(filenames=filename)\"\"\", 1)\nopen(p, \"w\").write(s)\n\np = \"src/click/_termui_impl.py\"\ns = open(p).read()\ns = s.replace(\n\" def edit_files(self, filenames: cabc.Iterable[str]) -> None:\",\n\" def edit_files(\\n self, filenames: cabc.Iterable[str | os.PathLike[str]]\\n ) -> None:\", 1)\ns = s.replace(\n\" args=shlex.split(editor) + list(filenames),\",\n\" args=shlex.split(editor) + [os.fspath(f) for f in filenames],\", 1)\nopen(p, \"w\").write(s)\n\np = \"CHANGES.md\"\ns = open(p).read()\ns = s.replace(\n\"- Add {meth}`Option.get_help_spec`, which returns the option's left help\",\n\"- {func}`edit` accepts {class}`os.PathLike` values, such as {class}`pathlib.Path`,\\n for `filename`, alone or in a sequence. {issue}`2869`\\n- Add {meth}`Option.get_help_spec`, which returns the option's left help\", 1)\nopen(p, \"w\").write(s)\nEOF\ngit diff src/click/termui.py src/click/_termui_impl.py; grep -n \"^import os\" src/click/_termui_impl.py"}}]}},{"n":31,"segment":0,"pos":93,"turn":4,"index":4,"stop_reason":"tool_use","context":93373,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/_termui_impl.py\"\ns = open(p).read()\ns = s.replace(\n\" def edit_files(\\n self, filenames: cabc.Iterable[str | os.PathLike[str]]\\n ) -> None:\",\n\" def edit_files(self, filenames: cabc.Iterable[str | os.PathLike[str]]) -> None:\", 1)\nopen(p, \"w\").write(s)\nEOF\ngrep -n \"line-length\" pyproject.toml; awk 'length > 88 {print FILENAME\": \"FNR\": \"length}' src/click/_termui_impl.py src/click/termui.py src/click/core.py | head\n.venv/bin/python -m pytest tests/test_termui.py -q -k \"edit\" 2>&1 | tail -4\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\n.venv/bin/python -m pytest -q 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/after4.txt\necho \"--- newly failing:\"; comm -13 $S/after3.txt $S/after4.txt\necho \"--- newly passing:\"; comm -23 $S/after3.txt $S/after4.txt\nwc -l < $S/after4.txt"}}]}},{"n":32,"segment":0,"pos":95,"turn":4,"index":5,"stop_reason":"tool_use","context":94422,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"for i in 1 2 3 4 5 6; do .venv/bin/python -m pytest tests/test_commands.py -q -k test_get_help_option_names 2>&1 | tail -1; done; echo \"--- baseline (stash):\"; git stash -q; for i in 1 2 3 4 5 6; do .venv/bin/python -m pytest tests/test_commands.py -q -k test_get_help_option_names 2>&1 | tail -1; done; git stash pop -q; git status --short"}},{"name":"Bash","input":{"command":"grep -n \"def test_get_help_option_names\" -B30 -A25 tests/test_commands.py | head -90"}}]}},{"n":33,"segment":0,"pos":99,"turn":4,"index":6,"stop_reason":"tool_use","context":96396,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"S=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nrun() { PYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort; }\ngit stash -q; run > $S/base0.txt; git stash pop -q\nrun > $S/now0.txt\nwc -l < $S/base0.txt; wc -l < $S/now0.txt\necho \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now0.txt\necho \"--- fixed so far:\"; comm -23 $S/base0.txt $S/now0.txt"}}]}},{"n":34,"segment":0,"pos":101,"turn":4,"index":7,"stop_reason":"end_turn","context":97754,"step":{"text":"Issue 4 is fixed. `tests/test_termui.py::test_edit_pathlib` passes for both parametrizations, and no test that passed before now fails.\n\nWith a fixed `PYTHONHASHSEED`, the suite is at 77 failures against 86 at the start. Nothing is newly failing, and the difference is exactly the fixes from issues 1–4.\n\n**Cause:** `click.edit()` only wrapped a `str` filename into a one-item tuple. A `Path` fell through to `Editor.edit_files`, which called `list(filenames)` on it and raised `TypeError: 'PosixPath' object is not iterable`. The type annotations also rejected `Path`, as the issue said.\n\n**Fix:**\n- **`src/click/termui.py`:** `edit()` wraps `str` and `os.PathLike` alike. The `filename` annotation on the overload and the implementation is now `str | os.PathLike[str] | Iterable[str | os.PathLike[str]] | None`. I also added a `versionchanged:: 8.5.1` note to the docstring.\n- **`src/click/_termui_impl.py`:** `Editor.edit_files` converts each entry with `os.fspath()` before building the editor command line. A list of `Path`s already ran on POSIX, but this makes it explicit and consistent.\n- **`CHANGES.md`:** I added an entry under 8.5.1, with the issue number 2869 from your report.\n\n**Flaky tests:** `tests/test_commands.py::test_get_help_option_names[...]` fails 2–5 of its 13 cases from run to run, with or without my changes. It depends on hash seed and looks like another open issue about stable ordering. It made my first diff look like a regression, so I'll compare with a fixed seed from now on.\n\nReady for issue 5.","calls":[]}},{"n":35,"segment":0,"pos":103,"turn":5,"index":0,"stop_reason":"tool_use","context":98602,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_basic.py tests/test_info_dict.py tests/test_options.py -q -k \"test_param_named_help or test_param_squatting_help_option_name or test_command or test_context or test_argument_sharing_param_name_warning\" -p no:randomly 2>&1 | grep -v \"^ \" | head -150"}}]}},{"n":36,"segment":0,"pos":105,"turn":5,"index":1,"stop_reason":"tool_use","context":102263,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 1,130p tests/test_basic.py; sed -n 3400,3470p tests/test_options.py; grep -n \"_click_default_help\" -r tests | head -20"}},{"name":"Grep","input":{"pattern":"def get_help_option|def get_help_option_names|help_option|_help_option","path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click","output_mode":"content","-n":true,"glob":"*.py"}}]}},{"n":37,"segment":0,"pos":109,"turn":5,"index":2,"stop_reason":"tool_use","context":106023,"step":{"text":"","calls":[{"name":"Read","input":{"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/core.py","offset":1120,"limit":130}},{"name":"Read","input":{"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/decorators.py","offset":535,"limit":70}},{"name":"Bash","input":{"command":"grep -n \"used more than once\" -B30 -A10 src/click/core.py | head -120; sed -n 1,60p tests/test_info_dict.py"}}]}},{"n":38,"segment":0,"pos":115,"turn":5,"index":3,"stop_reason":"tool_use","context":110319,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -n '\"help\"' src/click/*.py | head -20; grep -n \"filterwarnings\" -A6 pyproject.toml; grep -rn \"help_option_names\\|automatic conflict\\|conflict resolution\" docs/*.md | head"}}]}},{"n":39,"segment":0,"pos":117,"turn":5,"index":4,"stop_reason":"tool_use","context":114349,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -n \"def _parse_decls\" -A50 src/click/core.py | sed -n '/class Option/,$p' | head -5; awk 'NR>=3140 && NR<=3260 && /_parse_decls/ {print NR\": \"$0}' src/click/core.py; grep -n \"Name defined twice\" -B25 src/click/core.py | head -70"}}]}},{"n":40,"segment":0,"pos":119,"turn":5,"index":5,"stop_reason":"tool_use","context":114787,"step":{"text":"I'm on issue 5, working out how the automatic help option gets its name from `Option._parse_decls`.","calls":[{"name":"Read","input":{"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/src/click/core.py","offset":3188,"limit":70}}]}},{"n":41,"segment":0,"pos":122,"turn":5,"index":6,"stop_reason":"tool_use","context":115948,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/core.py\"\ns = open(p).read()\n\n# 1. Reserved storage name for the automatic help option.\nold = '''def _exit(code: int) -> t.NoReturn:'''\nnew = '''# The name the automatic help option stores its value under. It is not a valid\n# choice for a user parameter, so a parameter named ``help`` cannot clash with it.\n_HELP_OPTION_NAME = \"_click_default_help\"\n\n\ndef _exit(code: int) -> t.NoReturn:'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = ''' # Apply help_option decorator and pop resulting option\n help_option(*help_option_names)(self)'''\nnew = ''' # Apply help_option decorator and pop resulting option. The value\n # is stored under a reserved name so that a parameter named \"help\"\n # does not share it.\n help_option(*help_option_names, _HELP_OPTION_NAME)(self)'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\n# 2. Warn on shared names.\nold = ''' stacklevel=3,\n )\n\n return params\n'''\nnew = ''' stacklevel=3,\n )\n\n names = Counter(param.name for param in params if param.name)\n\n for name, count in names.items():\n if count < 2:\n continue\n\n if name == _HELP_OPTION_NAME:\n message = (\n f\"The parameter name {name!r} is reserved for the automatic\"\n \" help option. Rename the parameter.\"\n )\n elif any(\n param.name == name and param.param_type_name == \"argument\"\n for param in params\n ):\n message = (\n f\"The parameter name {name!r} is used by an argument and\"\n \" by another parameter, which overwrite each other's\"\n \" value. Rename one of them.\"\n )\n else:\n # Options may share a name on purpose, like the flags of a\n # feature switch.\n continue\n\n warnings.warn(message, stacklevel=3)\n\n return params\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\ngrep -n \"param_type_name\" src/click/core.py | head"}}]}},{"n":42,"segment":0,"pos":124,"turn":5,"index":7,"stop_reason":"tool_use","context":117111,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_basic.py tests/test_info_dict.py tests/test_options.py -q -p no:randomly 2>&1 | tail -8\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now5.txt\nwc -l < $S/now5.txt\necho \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now5.txt\necho \"--- fixed this round:\"; comm -23 $S/now0.txt $S/now5.txt"}}]}},{"n":43,"segment":0,"pos":126,"turn":5,"index":8,"stop_reason":"tool_use","context":118187,"step":{"text":"All ten failing cases across the five named tests now pass, and nothing new fails. I'll add the changelog entry and check the behaviour end to end.","calls":[{"name":"Bash","input":{"command":"python3 - <<'EOF'\np = \"CHANGES.md\"\ns = open(p).read()\nold = \"- Add {meth}`Option.get_help_spec`, which returns the option's left help\"\nnew = \"\"\"- The automatic help option stores its value under the reserved name\n `_click_default_help`, so an argument or option named `help` no longer breaks\n parsing. A warning is shown when a parameter claims that name, or when an\n argument shares its name with another parameter. {issue}`2819`\n\"\"\"\nassert s.count(old) == 1\ns = s.replace(old, new + old, 1)\nopen(p, \"w\").write(s)\nEOF\n.venv/bin/python - <<'EOF'\nimport warnings\nimport click\nfrom click.testing import CliRunner\n\n@click.command()\n@click.argument(\"help\")\ndef cli(help):\n click.echo(f\"got {help}\")\n\nr = CliRunner()\nprint(repr(r.invoke(cli, [\"value\"]).output))\nprint(r.invoke(cli, [\"--help\"]).output)\nEOF"}}]}},{"n":44,"segment":0,"pos":129,"turn":5,"index":9,"stop_reason":"end_turn","context":118888,"step":{"text":"Issue 5 is fixed. All five named tests pass (the ten failing cases, counting parametrizations), and nothing that passed before now fails. With a fixed `PYTHONHASHSEED`, the suite is down to 67 failures from 86 at the start.\n\n**Cause:** the automatic `--help` option took its storage name from its flag, so it was called `help`. A parameter named `help` therefore shared the same slot in the parser. The argument's value went into the eager help option, which tried to read it as a boolean and broke parsing.\n\n**Fix (`src/click/core.py`):**\n- **Reserved name:** `get_help_option` now creates the option with the reserved name `_click_default_help`, passed as an extra declaration. `click.argument(\"help\")` and `click.option(\"--assist\", \"help\")` no longer clash, and `--help` keeps working, as I checked by hand. This is also the name `to_info_dict` reports, which fixes the `test_info_dict` failures.\n- **Squatting warning:** `get_params` warns when a user parameter claims `_click_default_help` while the help option is active. If `add_help_option=False`, or a user option took over `--help`, the name isn't reserved and doesn't warn.\n- **Shared-name warning:** it warns when an argument shares its name with any other parameter. Options sharing a name (feature switches) are still exempt.\n- **One warning per case:** the squatting case gives only the \"reserved\" warning, because the suite turns warnings into errors and pytest re-emits unmatched ones.\n- **Debug-only:** both warnings are in the existing `__debug__` block, next to the duplicate-flag warning.\n\n`docs/documentation.md` already described this behaviour, so I only added a `CHANGES.md` entry under 8.5.1 with the issue number 2819.\n\nReady for issue 6.","calls":[]}},{"n":45,"segment":0,"pos":131,"turn":6,"index":0,"stop_reason":"tool_use","context":119580,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_shell_completion.py -q -k test_source_uses_lf_line_endings -p no:randomly 2>&1 | tail -30; grep -n \"def test_source_uses_lf_line_endings\" -B10 -A30 tests/test_shell_completion.py"}},{"name":"Bash","input":{"command":"grep -n \"echo\\|write\\|newline\\|\\\\\\\\r\\|def shell_complete\\|def source\\|def _source\\|sys.stdout\" src/click/shell_completion.py | head -60"}}]}},{"n":46,"segment":0,"pos":135,"turn":6,"index":1,"stop_reason":"tool_use","context":121392,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 1,60p src/click/shell_completion.py; sed -n 395,440p src/click/shell_completion.py; grep -n \"_default_text_stdout\\|def _make_text_stream\\|def get_text_stream\\|def _find_binary_writer\" src/click/*.py | head -20"}}]}},{"n":47,"segment":0,"pos":137,"turn":6,"index":2,"stop_reason":"tool_use","context":122863,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 1,30p src/click/utils.py; sed -n 186,230p src/click/_compat.py; grep -n \"^def _detect_program_name\\|^def _expand_args\\|^def _make_default_short_help\" src/click/utils.py"}}]}},{"n":48,"segment":0,"pos":139,"turn":6,"index":3,"stop_reason":"tool_use","context":129793,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/utils.py\"\ns = open(p).read()\nold = ''' file.write(out) # type: ignore\n file.flush()\n\n\ndef _get_binary_stream('''\nnew = ''' file.write(out) # type: ignore\n file.flush()\n\n\ndef _echo_lf(message: str) -> None:\n \"\"\"Like ``echo(message)``, but every line ends with ``\\\\\\\\n``, even where\n the stream would translate it to the platform line ending. A shell rejects\n a script with ``\\\\\\\\r\\\\\\\\n`` line endings, so a script written to a Windows\n file or pipe needs this.\n\n The message is encoded and written to the underlying binary stream, using\n the text stream's encoding. A stream without one gets the text as usual.\n \"\"\"\n file = _default_text_stdout()\n\n if file is not None and _find_binary_writer(file) is not None:\n encoding = getattr(file, \"encoding\", None) or \"utf-8\"\n errors = getattr(file, \"errors\", None) or \"strict\"\n echo(message.encode(encoding, errors), file=file)\n else:\n echo(message, file=file)\n\n\ndef _get_binary_stream('''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\n\np = \"src/click/shell_completion.py\"\ns = open(p).read()\ns = s.replace(\"from .utils import echo\\n\", \"from .utils import _echo_lf\\nfrom .utils import echo\\n\", 1)\nold = ''' if instruction == \"source\":\n echo(comp.source())\n return 0\n'''\nnew = ''' if instruction == \"source\":\n _echo_lf(comp.source())\n return 0\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\n\np = \"CHANGES.md\"\ns = open(p).read()\nold = \"- Add {meth}`Option.get_help_spec`, which returns the option's left help\"\nnew = \"\"\"- Shell completion source scripts always use `\\\\n` line endings. Redirecting one to a\n file on Windows no longer turns them into `\\\\r\\\\n`, which shells reject.\n\"\"\"\nassert s.count(old) == 1\ns = s.replace(old, new + old, 1)\nopen(p, \"w\").write(s)\nEOF\nsed -n '/^def _echo_lf/,/^def _get_binary_stream/p' src/click/utils.py; git diff CHANGES.md | tail -12"}}]}},{"n":49,"segment":0,"pos":141,"turn":6,"index":4,"stop_reason":"tool_use","context":131463,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_shell_completion.py -q -p no:randomly 2>&1 | tail -4\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now6.txt\nwc -l < $S/now6.txt\necho \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now6.txt\necho \"--- fixed this round:\"; comm -23 $S/now5.txt $S/now6.txt\n# real-world checks: piped stdout, StringIO fallback\n.venv/bin/python - <<'EOF'\nimport io, contextlib, subprocess, sys\nimport click\nfrom click.shell_completion import shell_complete\n\ncli = click.Group(\"cli\", commands=[click.Command(\"a\")])\nbuf = io.StringIO()\nwith contextlib.redirect_stdout(buf):\n shell_complete(cli, {}, \"cli\", \"_CLI_COMPLETE\", \"bash_source\")\nprint(\"StringIO fallback ok:\", buf.getvalue().startswith(\"_cli_completion\"))\nout = subprocess.run([sys.executable, \"-c\",\n \"import click;from click.shell_completion import shell_complete;shell_complete(click.Group('cli'),{}, 'cli','_C','zsh_source')\"],\n capture_output=True).stdout\nprint(\"piped stdout LF only:\", b\"\\r\" not in out, len(out))\nEOF"}}]}},{"n":50,"segment":0,"pos":143,"turn":6,"index":5,"stop_reason":"end_turn","context":132411,"step":{"text":"Issue 6 is fixed. `tests/test_shell_completion.py::test_source_uses_lf_line_endings` passes, and nothing that passed before now fails. With a fixed `PYTHONHASHSEED` the suite is down to 66 failures from 86 at the start.\n\n**Cause:** `shell_complete` printed the source script with `echo(comp.source())`, which writes through the text layer. A text stream opened with `newline=\"\\r\\n\"` turns every `\\n` into `\\r\\n` on write. That's the default on Windows when stdout is a file or pipe, and shells reject a script with those endings.\n\n**Fix:**\n- **`src/click/utils.py`:** a new private `_echo_lf(message)` encodes the script with the stream's own encoding and errors setting. It writes those bytes through `echo`'s existing binary path, so no translation happens. A stream with no binary layer, such as a `StringIO` under `redirect_stdout`, gets the text as before.\n- **`src/click/shell_completion.py`:** the `source` instruction now uses `_echo_lf`.\n- **Placement:** the helper lives in `utils.py` because the test patches `click.utils._default_text_stdout`, so it has to look the stream up there.\n\n**Checked by hand:** the output to a real pipe contains no `\\r`, and the `StringIO` fallback still works.\n\n**Left alone:** the `complete` instruction output. The issue is about source scripts, and the completion protocol output isn't `\\r\\n`-sensitive in the same way.\n\nI added a `CHANGES.md` entry under 8.5.1.\n\nReady for issue 7.","calls":[]}},{"n":51,"segment":0,"pos":145,"turn":7,"index":0,"stop_reason":"tool_use","context":133084,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -n \"custom_version_option\" -r tests docs src CHANGES.md | grep -v \"\\.pyc\"; "}},{"name":"Bash","input":{"command":"sed -n 395,545p src/click/decorators.py"}}]}},{"n":52,"segment":0,"pos":149,"turn":7,"index":1,"stop_reason":"tool_use","context":135673,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 925,975p tests/test_basic.py; sed -n 30,60p docs/api.md; sed -n 60,110p docs/option-decorators.md; sed -n 40,55p CHANGES.md; grep -n \"version_option\\|help_option\" src/click/__init__.py; sed -n 1,40p src/click/decorators.py"}}]}},{"n":53,"segment":0,"pos":151,"turn":7,"index":2,"stop_reason":"tool_use","context":137929,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"git diff CHANGES.md; echo ----; sed -n 50,75p CHANGES.md; grep -n \"2819\\|2869\\|3802\\|LF\\|line ending\\|bracket\\|PathLike\\|pathlib\" CHANGES.md | head -20"}}]}},{"n":54,"segment":0,"pos":153,"turn":7,"index":3,"stop_reason":"tool_use","context":140121,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -n -i \"completion\" CHANGES.md | head -20; sed -n 112,120p CHANGES.md; sed -n 138,142p CHANGES.md"}}]}},{"n":55,"segment":0,"pos":155,"turn":7,"index":4,"stop_reason":"tool_use","context":141635,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"git checkout -- CHANGES.md && git status --short"}}]}},{"n":56,"segment":0,"pos":157,"turn":7,"index":5,"stop_reason":"tool_use","context":142211,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 10,40p src/click/__init__.py; grep -n \"custom_version_option\\|versionadded:: 8.5\" -r docs/*.md src/click/*.py | head"}}]}},{"n":57,"segment":0,"pos":159,"turn":7,"index":6,"stop_reason":"tool_use","context":143831,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/__init__.py\"\ns = open(p).read()\nold = \"from .decorators import confirmation_option as confirmation_option\\n\"\nnew = old + \"from .decorators import custom_version_option as custom_version_option\\n\"\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\n\np = \"src/click/decorators.py\"\ns = open(p).read()\nold = '''def help_option(*param_decls: str, **kwargs: t.Any) -> t.Callable[[FC], FC]:'''\nnew = '''def custom_version_option(\n get_message: t.Callable[[Context], str],\n *param_decls: str,\n **kwargs: t.Any,\n) -> t.Callable[[FC], FC]:\n \"\"\"Add a ``--version`` option which immediately prints a message you\n produce and exits the program. Use it for output that\n :func:`version_option` does not support, such as the Python version\n or git metadata.\n\n :param get_message: Called with the current :class:`Context` when the\n option is used. Returns the text to show.\n :param param_decls: One or more option names. Defaults to the single\n value ``\"--version\"``.\n :param kwargs: Extra arguments are passed to :func:`option`.\n\n .. versionadded:: 8.5.0\n \"\"\"\n\n def callback(ctx: Context, param: Parameter, value: bool) -> None:\n if not value or ctx.resilient_parsing:\n return\n\n echo(get_message(ctx), color=ctx.color)\n ctx.exit()\n\n if not param_decls:\n param_decls = (\"--version\",)\n\n kwargs.setdefault(\"is_flag\", True)\n kwargs.setdefault(\"expose_value\", False)\n kwargs.setdefault(\"is_eager\", True)\n kwargs.setdefault(\"help\", _(\"Show the version and exit.\"))\n kwargs[\"callback\"] = callback\n return option(*param_decls, **kwargs)\n\n\ndef help_option(*param_decls: str, **kwargs: t.Any) -> t.Callable[[FC], FC]:'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\n.venv/bin/python -m pytest tests/test_basic.py -q -p no:randomly -k \"version_option\" 2>&1 | tail -4\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now7.txt\nwc -l < $S/now7.txt\necho \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now7.txt\necho \"--- fixed this round:\"; comm -23 $S/now6.txt $S/now7.txt"}}]}},{"n":58,"segment":0,"pos":161,"turn":7,"index":7,"stop_reason":"end_turn","context":145115,"step":{"text":"Issue 7 is done. Both named tests pass, `test_custom_version_option` for `--version` and `-V` and `test_custom_version_option_receives_context`. Nothing that passed before now fails, and with a fixed `PYTHONHASHSEED` the suite is down to 63 failures from 86 at the start.\n\n**Feature:** `click.custom_version_option(get_message, *param_decls, **kwargs)` adds an option that calls `get_message(ctx)`, prints the returned string and exits.\n- **Message:** it is printed with `echo(..., color=ctx.color)`, the same as `version_option`.\n- **Defaults:** the option name defaults to `--version`, and it is an eager flag with `expose_value=False`, the same defaults as `version_option`.\n- **`resilient_parsing`:** it does nothing under `resilient_parsing`, so shell completion doesn't print.\n- **`version_option`:** unchanged.\n- **Code and docs:** it lives in `src/click/decorators.py`, is exported from `click/__init__.py`, and its docstring carries `versionadded:: 8.5.0`. `docs/api.md`, `docs/option-decorators.md` and `CHANGES.md` already referenced it.\n\n**Correction to earlier work:** the `CHANGES.md` entries I added for issues 3, 4, 5 and 6 duplicated ones the file already has in its released sections, so I reverted `CHANGES.md` to the committed version. Issue 2's entry was already there under 8.5.1. From now on I'll check the changelog before touching it.\n\nReady for issue 8.","calls":[]}},{"n":59,"segment":0,"pos":163,"turn":8,"index":0,"stop_reason":"tool_use","context":145876,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_context.py -q -p no:randomly -k test_hiding_of_unset_sentinel_in_callbacks 2>&1 | tail -40; grep -n \"def test_hiding_of_unset_sentinel_in_callbacks\" -B5 -A60 tests/test_context.py"}}]}},{"n":60,"segment":0,"pos":165,"turn":8,"index":1,"stop_reason":"tool_use","context":148101,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 244,300p tests/test_context.py; grep -n \"def process_value\\|def handle_parse_result\\|def type_cast_value\\|UNSET\" src/click/core.py | head -80"}}]}},{"n":61,"segment":0,"pos":167,"turn":8,"index":2,"stop_reason":"tool_use","context":150490,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 2395,2412p src/click/core.py; sed -n 2625,2680p src/click/core.py; sed -n 2715,2800p src/click/core.py; sed -n 1395,1425p src/click/core.py"}}]}},{"n":62,"segment":0,"pos":169,"turn":8,"index":3,"stop_reason":"tool_use","context":153238,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -n \"\\.callback\\b\\|def process_value\" src/click/core.py"}}]}},{"n":63,"segment":0,"pos":171,"turn":8,"index":4,"stop_reason":"tool_use","context":155093,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/core.py\"\ns = open(p).read()\nold = ''' if self.callback is not None:\n # Legacy case: UNSET is not exposed directly to the callback, but converted\n # to None.\n if value is UNSET:\n value = None\n value = self.callback(ctx, self, value)\n\n return value\n'''\nnew = ''' if self.callback is not None:\n # Legacy case: UNSET is not exposed directly to the callback, but converted\n # to None. That goes for the values of the other parameters in\n # ``ctx.params`` too.\n if value is UNSET:\n value = None\n\n hidden = [name for name, other in ctx.params.items() if other is UNSET]\n\n for name in hidden:\n ctx.params[name] = None\n\n try:\n value = self.callback(ctx, self, value)\n finally:\n # Put the sentinel back, so it keeps treating the slot as missing,\n # unless the callback assigned a value or removed the entry.\n for name in hidden:\n if name in ctx.params and ctx.params[name] is None:\n ctx.params[name] = UNSET\n\n return value\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = ''' result of the callback. If the value was not set, the callback receive\n ``None``. This keep the legacy behavior as it was before the introduction of\n the :attr:`UNSET` sentinel.\n'''\nnew = ''' result of the callback. If the value was not set, the callback receive\n ``None``. This keep the legacy behavior as it was before the introduction of\n the :attr:`UNSET` sentinel. The same goes for the values of other\n parameters in :attr:`Context.params` while the callback runs.\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\n.venv/bin/python -m pytest tests/test_context.py -q -p no:randomly 2>&1 | tail -4\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now8.txt\nwc -l < $S/now8.txt\necho \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now8.txt\necho \"--- fixed this round:\"; comm -23 $S/now7.txt $S/now8.txt"}}]}},{"n":64,"segment":0,"pos":173,"turn":8,"index":5,"stop_reason":"end_turn","context":156712,"step":{"text":"Issue 8 is fixed. `tests/test_context.py::test_hiding_of_unset_sentinel_in_callbacks` passes, and nothing that passed before now fails. With a fixed `PYTHONHASHSEED` the suite is down to 62 failures from 86 at the start.\n\n**Cause:** `Parameter.process_value` already turned the callback's own `UNSET` value into `None`. It did nothing about the other parameters in `ctx.params`, so `ctx.params.get(\"other\")` returned the sentinel for any parameter not yet given a value.\n\n**Fix (`src/click/core.py`, `process_value`):** while a callback runs, every `UNSET` entry in `ctx.params` is shown as `None`.\n- **Restore:** in a `finally`, entries the callback left as `None` are set back to `UNSET`. The parser still treats those slots as missing, for example when several options share a name.\n- **What the callback changed stays:** a value the callback assigned is kept, and so is an entry it removed.\n- **Exceptions:** if the callback raises, the sentinel is still restored.\n- **Outside callbacks:** nothing changes. `process_value` overrides and the main command see the same values as before, and the test pins that down.\n\nI updated the `process_value` docstring to say so. I didn't touch `CHANGES.md`, since it is easy to duplicate an entry that already exists there.\n\nReady for issue 9.","calls":[]}},{"n":65,"segment":0,"pos":175,"turn":9,"index":0,"stop_reason":"tool_use","context":157259,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_termui.py -q -p no:randomly -k test_progressbar_lands_on_final_position 2>&1 | grep -v \"^ \" | tail -40; grep -n \"def test_progressbar_lands_on_final_position\" -B25 -A30 tests/test_termui.py"}},{"name":"Bash","input":{"command":"sed -n 40,200p src/click/_termui_impl.py"}}]}},{"n":66,"segment":0,"pos":179,"turn":9,"index":1,"stop_reason":"tool_use","context":161221,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 200,380p src/click/_termui_impl.py"}}]}},{"n":67,"segment":0,"pos":181,"turn":9,"index":2,"stop_reason":"tool_use","context":163412,"step":{"text":"The cause is in `ProgressBar.update`. Steps are held back until `update_min_steps` is reached, so any remainder left at the end never gets applied to `pos`, and the bar freezes below its total.","calls":[{"name":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/_termui_impl.py\"\ns = open(p).read()\n\nold = ''' self._completed_intervals += n_steps\n\n if self._completed_intervals >= self.update_min_steps:\n self.make_step(self._completed_intervals)\n'''\nnew = ''' self._completed_intervals += n_steps\n\n # The last steps are always applied, so the bar lands on its total even\n # if ``update_min_steps`` does not divide the length, or exceeds it.\n reaches_end = (\n self.length is not None\n and self.pos + self._completed_intervals >= self.length\n )\n\n if self._completed_intervals >= self.update_min_steps or reaches_end:\n self.make_step(self._completed_intervals)\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = ''' def finish(self) -> None:\n self.eta_known = False\n'''\nnew = ''' def finish(self) -> None:\n # Apply the steps still held back by ``update_min_steps``, so the\n # position is not left behind. The length may be unknown.\n if self._completed_intervals:\n self.make_step(self._completed_intervals)\n self._completed_intervals = 0\n\n self.eta_known = False\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\n.venv/bin/python -m pytest tests/test_termui.py -q -p no:randomly -k \"progressbar\" 2>&1 | tail -6\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now9.txt\nwc -l < $S/now9.txt\necho \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now9.txt\necho \"--- fixed this round:\"; comm -23 $S/now8.txt $S/now9.txt"}}]}},{"n":68,"segment":0,"pos":184,"turn":9,"index":3,"stop_reason":"tool_use","context":167115,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python - <<'EOF'\nimport io\nimport click, click._termui_impl as impl\nimpl.isatty = lambda _: True\n\ndef gen():\n yield from range(20)\n\nfor steps in (3, 7, 25):\n s = io.StringIO()\n with click.progressbar(gen(), show_pos=True, update_min_steps=steps, file=s) as bar: # no length\n for _ in bar: pass\n print(f\"unknown length, threshold {steps}: pos={bar.pos} finished={bar.finished} last render={s.getvalue().split(chr(13))[-1].strip()!r}\")\n\n# early exit from the loop must not claim completion\ns = io.StringIO()\nwith click.progressbar(range(20), show_pos=True, update_min_steps=7, file=s) as bar:\n for i in bar:\n if i == 9: break\nprint(\"break at 9:\", bar.pos, bar.finished)\nEOF"}}]}},{"n":69,"segment":0,"pos":186,"turn":9,"index":4,"stop_reason":"end_turn","context":167875,"step":{"text":"Issue 9 is fixed. All six cases of `tests/test_termui.py::test_progressbar_lands_on_final_position` pass, and nothing that passed before now fails. With a fixed `PYTHONHASHSEED` the suite is down to 56 failures from 86 at the start.\n\n**Cause:** `ProgressBar.update()` (`src/click/_termui_impl.py`) holds steps back until `update_min_steps` are pending. When the threshold didn't divide the length, the leftover steps were never applied, so `pos` stayed at 14 for a length of 20 and a threshold of 7. A threshold above the length meant `pos` stayed at 0, and the bar never showed the total.\n\n**Fix:**\n- **Known length:** `update()` also applies the pending steps once `pos + pending` reaches the length. The last step then always renders `20/20` and marks the bar finished.\n- **`finish()`:** it now applies any pending steps first. This covers iterables with no length, where `update()` can't see the end. I checked by hand that a generator with thresholds 3, 7 and 25 ends at `pos=20`.\n- **Unchanged:** breaking out of the loop early still reports the real position and doesn't claim completion, since the checks above only trigger on reaching the end.\n\nI left `CHANGES.md` alone. `tests/test_termui.py::test_progressbar_item_show_func` is a separate failure that predates my changes and is presumably a later issue.\n\nReady for issue 10.","calls":[]}},{"n":70,"segment":0,"pos":188,"turn":10,"index":0,"stop_reason":"tool_use","context":168498,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_command_decorators.py tests/test_commands.py -q -p no:randomly -k \"test_generate_name or test_other_command_invoke_with_defaults\" 2>&1 | grep -v \"^ \" | tail -40; grep -n \"def test_generate_name\" -B3 -A40 tests/test_command_decorators.py"}},{"name":"Bash","input":{"command":"grep -n \"def test_other_command_invoke_with_defaults\" -B3 -A30 tests/test_commands.py; grep -n \"_command\\|_group\\|replace(\\\"_\\\"\\|name = \" src/click/decorators.py | head -30"}}]}},{"n":71,"segment":0,"pos":192,"turn":10,"index":1,"stop_reason":"tool_use","context":170954,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 60,95p tests/test_command_decorators.py; sed -n 120,260p src/click/decorators.py; grep -rn \"_cmd\\b\\|_command\\b\\|_group\\b\\|_grp\\b\\|suffix\" docs/*.md | head -20; grep -n \"suffix\\|_cmd\" CHANGES.md | head"}}]}},{"n":72,"segment":0,"pos":194,"turn":10,"index":2,"stop_reason":"tool_use","context":173930,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 430,440p CHANGES.md; git log -3 --format=%H%n%s -- src/click/decorators.py | head; git log --all --oneline | head"}}]}},{"n":73,"segment":0,"pos":196,"turn":10,"index":3,"stop_reason":"tool_use","context":174347,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"awk 'NR<=436 && /^## Version/ {v=$0; n=NR} END{print n\": \"v}' CHANGES.md; sed -n 262,340p src/click/decorators.py | grep -n \"def group\\|command(\\|name\" | head -20"}}]}},{"n":74,"segment":0,"pos":198,"turn":10,"index":4,"stop_reason":"tool_use","context":175520,"step":{"text":"`group()` goes through `command()`, so one change covers both. The changelog records this rule under 8.2.0: the suffixes `_command`, `_cmd`, `_group` and `_grp` are removed.","calls":[{"name":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/decorators.py\"\ns = open(p).read()\n\nold = ''' cmd = cls(\n name=name or f.__name__.lower().replace(\"_\", \"-\"),\n callback=f,\n params=params,\n **attrs,\n )\n'''\nnew = ''' if name:\n cmd_name = name\n else:\n cmd_name = f.__name__.lower().replace(\"_\", \"-\")\n cmd_left, sep, suffix = cmd_name.rpartition(\"-\")\n\n if sep and suffix in {\"command\", \"cmd\", \"group\", \"grp\"}:\n cmd_name = cmd_left\n\n cmd = cls(name=cmd_name, callback=f, params=params, **attrs)\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = ''' The name of the command defaults to the name of the function with\n underscores replaced by dashes. If you want to change that, you can\n pass the intended name as the first argument.\n\n All keyword arguments are forwarded to the underlying command class.\n For the ``params`` argument, any decorated params are appended to\n the end of the list.\n\n Once decorated the function turns into a :class:`Command` instance\n that can be invoked as a command line utility or be attached to a\n command :class:`Group`.\n\n :param name: the name of the command. This defaults to the function\n name with underscores replaced by dashes.\n :param cls: the command class to instantiate. This defaults to\n :class:`Command`.\n\n .. versionchanged:: 8.1\n This decorator can be applied without parentheses.\n'''\nnew = ''' The name of the command defaults to the name of the function, in\n lowercase, with underscores replaced by dashes, and the suffixes\n ``_command``, ``_cmd``, ``_group``, and ``_grp`` removed. If you want\n to change that, you can pass the intended name as the first argument.\n\n All keyword arguments are forwarded to the underlying command class.\n For the ``params`` argument, any decorated params are appended to\n the end of the list.\n\n Once decorated the function turns into a :class:`Command` instance\n that can be invoked as a command line utility or be attached to a\n command :class:`Group`.\n\n :param name: the name of the command. This defaults to the function\n name with underscores replaced by dashes, and the suffixes\n removed.\n :param cls: the command class to instantiate. This defaults to\n :class:`Command`.\n\n .. versionchanged:: 8.2\n The suffixes ``_command``, ``_cmd``, ``_group``, and ``_grp`` are\n removed from a generated name.\n\n .. versionchanged:: 8.1\n This decorator can be applied without parentheses.\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\nsed -n '/^def group(/,/^ return command/p' src/click/decorators.py | sed -n '1,45p'"}}]}},{"n":75,"segment":0,"pos":201,"turn":10,"index":5,"stop_reason":"tool_use","context":177234,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_command_decorators.py tests/test_commands.py -q -p no:randomly 2>&1 | tail -4\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now10.txt\nwc -l < $S/now10.txt\necho \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now10.txt\necho \"--- fixed this round:\"; comm -23 $S/now9.txt $S/now10.txt | sed 's/\\[.*//' | sort | uniq -c\n.venv/bin/python - <<'EOF'\nimport click\ndef mk(n, deco=click.command, **kw):\n def f(): pass\n f.__name__ = n\n return deco(**kw)(f).name\nprint([mk(n) for n in [\"command\", \"cmd\", \"my_command\", \"Init_Group\", \"commands\", \"x_command_y\", \"_cmd\", \"sync_cmd\"]])\nprint(mk(\"init_group\", click.group), mk(\"init_group\", name=\"explicit_cmd\"), mk(\"init_group\", name=\"\"))\nEOF"}}]}},{"n":76,"segment":0,"pos":203,"turn":10,"index":6,"stop_reason":"tool_use","context":178247,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/decorators.py\"\ns = open(p).read()\nold = ''' if sep and suffix in {\"command\", \"cmd\", \"group\", \"grp\"}:\n cmd_name = cmd_left\n'''\nnew = ''' # Keep the suffix if removing it would leave nothing.\n if sep and cmd_left and suffix in {\"command\", \"cmd\", \"group\", \"grp\"}:\n cmd_name = cmd_left\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\nawk 'length > 88 {print FILENAME\": \"FNR\": \"length}' src/click/decorators.py\n.venv/bin/python - <<'EOF'\nimport click\ndef mk(n):\n def f(): pass\n f.__name__ = n\n return click.command(f).name\nprint([mk(n) for n in [\"_cmd\", \"init_data_cmd\", \"cmd\", \"a_group\"]])\nEOF\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now10.txt\nwc -l < $S/now10.txt; echo \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now10.txt"}}]}},{"n":77,"segment":0,"pos":205,"turn":10,"index":7,"stop_reason":"end_turn","context":179514,"step":{"text":"Issue 10 is fixed. `test_generate_name` (4 cases) and `test_other_command_invoke_with_defaults` (17 cases) now pass, and nothing that passed before now fails. With a fixed `PYTHONHASHSEED` the suite is down to 35 failures from 86 at the start.\n\n**Cause:** `click.command` built the default name as `f.__name__.lower().replace(\"_\", \"-\")`, so `init_data_command` stayed `init-data-command`.\n\n**Fix (`src/click/decorators.py`):** after that conversion, a trailing `-command`, `-cmd`, `-group` or `-grp` segment is dropped, so `init_data_cmd` becomes `init-data`. This is the rule `CHANGES.md` already records under 8.2.0.\n- **Coverage:** `group()` and `Group.command()` / `Group.group()` build on `command()`, so they get the same behaviour.\n- **What still keeps its name:**\n - An explicit name is used as given, and an empty name still falls back to the derived one, as before.\n - The suffix is only dropped from a longer name, so `command` and `cmd` stay as they are, and `commands` and `x_command_y` are untouched.\n - The rule doesn't apply when stripping would leave nothing, so a function named `_cmd` stays `-cmd` rather than becoming an empty command name.\n\nI updated the `command()` docstring with the rule and a `versionchanged:: 8.2` note, and left `CHANGES.md` alone because it already describes this.\n\nReady for issue 11.","calls":[]}},{"n":78,"segment":0,"pos":207,"turn":11,"index":0,"stop_reason":"tool_use","context":180123,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_commands.py -q -p no:randomly -k test_subcommand_metavar_marks_optional 2>&1 | grep -v \"^ \" | tail -30; grep -n \"def test_subcommand_metavar_marks_optional\" -B30 -A30 tests/test_commands.py"}},{"name":"Bash","input":{"command":"grep -n \"subcommand_metavar\\|COMMAND\" src/click/core.py | head -30"}}]}},{"n":79,"segment":0,"pos":211,"turn":11,"index":1,"stop_reason":"tool_use","context":182470,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 1685,1800p src/click/core.py; sed -n 1970,1982p src/click/core.py; grep -rn \"subcommand_metavar\" tests docs src --include=*.py --include=*.md | grep -v \"^src/click/core.py\" | head"}}]}},{"n":80,"segment":0,"pos":213,"turn":11,"index":2,"stop_reason":"tool_use","context":184447,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/core.py\"\ns = open(p).read()\n\nold = ''' if subcommand_metavar is None:\n if chain:\n subcommand_metavar = \"COMMAND1 [ARGS]... [COMMAND2 [ARGS]...]...\"\n else:\n subcommand_metavar = \"COMMAND [ARGS]...\"\n'''\nnew = ''' if subcommand_metavar is None:\n if chain:\n command = \"COMMAND1\"\n subcommand_metavar = \"{} [ARGS]... [COMMAND2 [ARGS]...]...\"\n else:\n command = \"COMMAND\"\n subcommand_metavar = \"{} [ARGS]...\"\n\n # The leading subcommand is only optional if the group can run without it.\n if invoke_without_command:\n command = f\"[{command}]\"\n\n subcommand_metavar = subcommand_metavar.format(command)\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = ''' :param subcommand_metavar: How to represent the subcommand argument in help.\n The default will represent whether ``chain`` is set or not.\n'''\nnew = ''' :param subcommand_metavar: How to represent the subcommand argument in help.\n The default will represent whether ``chain`` is set or not, and whether\n ``invoke_without_command`` makes the subcommand optional.\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\n.venv/bin/python -m pytest tests/test_commands.py -q -p no:randomly -k test_subcommand_metavar_marks_optional 2>&1 | tail -3\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now11.txt\nwc -l < $S/now11.txt; echo \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now11.txt\necho \"--- fixed this round:\"; comm -23 $S/now10.txt $S/now11.txt"}}]}},{"n":81,"segment":0,"pos":215,"turn":11,"index":3,"stop_reason":"tool_use","context":185952,"step":{"text":"It passes, but the `.format` template I wrote is clumsier than it needs to be. I'll simplify it before moving on.","calls":[{"name":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/core.py\"\ns = open(p).read()\nold = ''' if subcommand_metavar is None:\n if chain:\n command = \"COMMAND1\"\n subcommand_metavar = \"{} [ARGS]... [COMMAND2 [ARGS]...]...\"\n else:\n command = \"COMMAND\"\n subcommand_metavar = \"{} [ARGS]...\"\n\n # The leading subcommand is only optional if the group can run without it.\n if invoke_without_command:\n command = f\"[{command}]\"\n\n subcommand_metavar = subcommand_metavar.format(command)\n'''\nnew = ''' if subcommand_metavar is None:\n first = \"COMMAND1\" if chain else \"COMMAND\"\n\n # The leading subcommand is only optional if the group can run without it.\n if invoke_without_command:\n first = f\"[{first}]\"\n\n subcommand_metavar = f\"{first} [ARGS]...\"\n\n if chain:\n subcommand_metavar += \" [COMMAND2 [ARGS]...]...\"\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\nawk 'length > 88 {print FILENAME\": \"FNR\": \"length}' src/click/core.py\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now11.txt\nwc -l < $S/now11.txt; echo \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now11.txt\n.venv/bin/python -m pytest tests/test_commands.py -q -p no:randomly -k test_subcommand_metavar_marks_optional 2>&1 | tail -1"}}]}},{"n":82,"segment":0,"pos":218,"turn":11,"index":4,"stop_reason":"tool_use","context":187104,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 2800p src/click/core.py; git blame -s -L2800,2800 src/click/core.py | cut -c1-12"}}]}},{"n":83,"segment":0,"pos":220,"turn":11,"index":5,"stop_reason":"end_turn","context":187429,"step":{"text":"Issue 11 is fixed. All four cases of `test_subcommand_metavar_marks_optional` pass, and nothing that passed before now fails. With a fixed `PYTHONHASHSEED` the suite is down to 33 failures from 86 at the start.\n\n**Cause:** `Group.__init__` (`src/click/core.py`) picked its default `subcommand_metavar` from `chain` only. A group with `invoke_without_command=True` still showed `COMMAND [ARGS]...`, as if a subcommand were mandatory.\n\n**Fix:** the default now also looks at `invoke_without_command`, and brackets the leading command when the group can run without one:\n\n| chain | invoke_without_command | usage |\n|---|---|---|\n| no | no | `COMMAND [ARGS]...` |\n| no | yes | `[COMMAND] [ARGS]...` |\n| yes | no | `COMMAND1 [ARGS]... [COMMAND2 [ARGS]...]...` |\n| yes | yes | `[COMMAND1] [ARGS]... [COMMAND2 [ARGS]...]...` |\n\nAn explicit `subcommand_metavar=` is still used exactly as given. I updated the parameter's docstring to mention the new dependency. `docs/documentation.md` already described the bracketed form, and I left `CHANGES.md` alone.\n\nReady for issue 12.","calls":[]}},{"n":84,"segment":0,"pos":222,"turn":12,"index":0,"stop_reason":"tool_use","context":188125,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_termui.py -q -p no:randomly -k \"pipepager or tempfile_pager or pager\" 2>&1 | grep -E \"^(FAILED|E )|passed|failed\" | head -50"}},{"name":"Bash","input":{"command":"grep -n \"pipepager_less\\|tempfile_pager\\|def test_.*pager\" tests/test_termui.py"}}]}},{"n":85,"segment":0,"pos":226,"turn":12,"index":1,"stop_reason":"tool_use","context":189880,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 640,700p tests/test_termui.py; sed -n 770,930p tests/test_termui.py; sed -n 1165,1262p tests/test_termui.py"}}]}},{"n":86,"segment":0,"pos":228,"turn":12,"index":2,"stop_reason":"tool_use","context":194774,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 380,545p src/click/_termui_impl.py; sed -n 582,640p src/click/_termui_impl.py"}}]}},{"n":87,"segment":0,"pos":230,"turn":12,"index":3,"stop_reason":"tool_use","context":197950,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -rn \"_tempfilepager\\|_pipepager\\|_nullpager\" tests/*.py src/click/*.py | grep -v \"def test_\\|^tests.*#\" | head -30; sed -n 100,116p CHANGES.md; sed -n 545,562p src/click/_termui_impl.py"}}]}},{"n":88,"segment":0,"pos":232,"turn":12,"index":4,"stop_reason":"tool_use","context":205052,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/_termui_impl.py\"\ns = open(p).read()\n\n# 1. helpers, placed before _pager_contextmanager\nold = '''def _pager_contextmanager(\n color: bool | None = None,\n) -> t.ContextManager[tuple[t.TextIO, bool | None]]:'''\nnew = '''def _is_less(cmd_path: Path) -> bool:\n \"\"\"Whether a resolved pager command is ``less``, ignoring an extension such\n as the ``.exe`` of Windows. Windows filesystems are case-insensitive, so\n ``which`` resolves any case there, and the match ignores it too.\n \"\"\"\n stem = cmd_path.stem\n return (stem.casefold() if WIN else stem) == \"less\"\n\n\n# The short ``less`` options that take the rest of their token as a string. A\n# ``r`` or ``R`` inside that value does not ask for raw control characters.\n_LESS_STRING_OPTIONS = frozenset(\"DkoOpPtT\")\n\n\ndef _less_requests_raw_mode(tokens: cabc.Iterable[str]) -> bool:\n \"\"\"Whether ``less`` option tokens ask for raw control characters, so the\n pager passes ANSI colors through: ``-r``, ``-R``, alone or bundled with\n other short flags, or ``--raw-control-chars`` and ``--RAW-CONTROL-CHARS``.\n\n Filenames, and letters inside the value of an option, do not count.\n \"\"\"\n for token in tokens:\n if token == \"--\":\n # Everything after the terminator is a filename.\n break\n\n if token.startswith(\"--\"):\n if token in (\"--raw-control-chars\", \"--RAW-CONTROL-CHARS\"):\n return True\n elif token.startswith(\"-\"):\n for char in token[1:]:\n if char in \"rR\":\n return True\n\n if char in _LESS_STRING_OPTIONS:\n break\n\n return False\n\n\ndef _pager_contextmanager(\n color: bool | None = None,\n) -> t.ContextManager[tuple[t.TextIO, bool | None]]:'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\n# 2. pass params to the tempfile pager\nold = \" return _tempfilepager(cmd_path, color)\\n\"\nnew = \" return _tempfilepager(cmd_path, cmd_params, color)\\n\"\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\n# 3. detection in _pipepager\nold = ''' # If we're piping to less and the user hasn't decided on colors, we enable\n # them by default we find the -R flag in the command line arguments.\n if color is None and cmd_path.name == \"less\":\n less_flags = f\"{os.environ.get('LESS', '')}{' '.join(cmd_params)}\"\n if not less_flags:\n env[\"LESS\"] = \"-R\"\n color = True\n elif \"r\" in less_flags or \"R\" in less_flags:\n color = True\n'''\nnew = ''' # If we're piping to less and the user hasn't decided on colors, we enable\n # them by default, or if we find the -R flag in the ``LESS`` variable or the\n # command line arguments.\n if color is None and _is_less(cmd_path):\n less_env = os.environ.get(\"LESS\", \"\")\n\n if not less_env and not cmd_params:\n env[\"LESS\"] = \"-R\"\n color = True\n else:\n try:\n less_env_tokens = shlex.split(less_env)\n except ValueError:\n # Unbalanced quotes. less still reads the options it can.\n less_env_tokens = less_env.split()\n\n if _less_requests_raw_mode(less_env_tokens) or _less_requests_raw_mode(\n cmd_params\n ):\n color = True\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\n# 4. tempfile pager\nold = '''def _tempfilepager(\n cmd_path: Path, color: bool | None = None\n) -> t.Iterator[tuple[t.TextIO, bool | None]]:\n \"\"\"Page through text by invoking a program on a temporary file.\n\n Used as the primary pager strategy on Windows (where piping to\n ``more`` adds spurious ``\\\\\\\\r\\\\\\\\n``), and as a fallback on other\n platforms. The command is invoked with the temporary file as its only\n argument: any parameters the user set in ``PAGER`` are not passed on.\n \"\"\"'''\nnew = '''def _tempfilepager(\n cmd_path: Path, cmd_params: list[str], color: bool | None = None\n) -> t.Iterator[tuple[t.TextIO, bool | None]]:\n \"\"\"Page through text by invoking a program on a temporary file.\n\n Used as the primary pager strategy on Windows (where piping to\n ``more`` adds spurious ``\\\\\\\\r\\\\\\\\n``), and as a fallback on other\n platforms. The command is invoked with the parameters the user set in\n ``PAGER``, followed by the temporary file.\n \"\"\"'''\nassert s.count(old) == 1, s.count(old)\ns = s.replace(old, new, 1)\n\nold = \" subprocess.call([str(cmd_path), f.name])\\n\"\nnew = \" subprocess.call([str(cmd_path), *cmd_params, f.name])\\n\"\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\nawk 'length > 88 {print FILENAME\": \"FNR\": \"length}' src/click/_termui_impl.py\n.venv/bin/python -m pytest tests/test_termui.py -q -p no:randomly -k \"pager\" 2>&1 | tail -5"}}]}},{"n":89,"segment":0,"pos":234,"turn":12,"index":5,"stop_reason":"tool_use","context":208739,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"S=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now12.txt\nwc -l < $S/now12.txt; echo \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now12.txt\necho \"--- fixed this round:\"; comm -23 $S/now11.txt $S/now12.txt\ngit stash -q; .venv/bin/python -m pytest -q -p no:randomly tests/test_termui.py -k test_echo_via_pager_streams_each_write 2>&1 | tail -1; git stash pop -q\n.venv/bin/python - <<'EOF'\nfrom click._termui_impl import _less_requests_raw_mode as f\ncases = {\n \"-R\": True, \"-rX\": True, \"-X\": False, \"--raw-control-chars\": True, \"--RAW-CONTROL-CHARS\": True,\n \"--raw-control-chars=x\": False, \"--prompt=resume\": False, \"-Ppromptr\": False, \"-P -R\": True,\n \"-iR\": True, \"-Dur\": False, \"-j5R\": True, \"-\": False,\n}\nfor tokens, want in cases.items():\n got = f(tokens.split(\" \"))\n print(\"ok \" if got == want else \"BAD\", tokens, got)\nprint(\"terminator:\", f([\"--\", \"-R\"]), \" after flag:\", f([\"-X\", \"--\", \"-R\"]))\nEOF"}}]}},{"n":90,"segment":0,"pos":236,"turn":12,"index":6,"stop_reason":"end_turn","context":210005,"step":{"text":"Issue 12 is fixed. All four named tests pass (8 cases in total, counting parametrizations), and nothing that passed before now fails. With a fixed `PYTHONHASHSEED` the suite is down to 25 failures from 86 at the start.\n\nThe changes are all in `src/click/_termui_impl.py`.\n\n- **Extra `PAGER` arguments were dropped:** `_tempfilepager` never received the parameters split off `PAGER`, so `PAGER=\"head -n 1\"` ran bare `head`. It now takes `cmd_params` like `_pipepager` does and runs `[command, *params, tempfile]`.\n- **`less.exe` wasn't recognised:** detection compared the whole file name, `cmd_path.name == \"less\"`. A new `_is_less()` compares the stem, so `less.exe` matches. The match is case-sensitive on POSIX and casefolded on Windows.\n- **Raw-mode detection looked at raw text:** it searched the `LESS` value plus the arguments for any `r` or `R`. That misfired on `README.md`, `--prompt=resume` and the like. A new `_less_requests_raw_mode()` reads option tokens:\n - Bundled short flags such as `-R` and `-rX`, and `--raw-control-chars` / `--RAW-CONTROL-CHARS`, count.\n - `--` ends option parsing, so what follows is a filename.\n - `--raw-control-chars=x` doesn't count.\n - Letters inside the value of string-taking short options (`-P`, `-p`, `-t`, `-T`, `-k`, `-o`, `-O`, `-D`) don't count.\n- **Unparsable `LESS`:** an unparsable `LESS` such as `-R \"` falls back to whitespace splitting, as the test requires.\n- **Unchanged:** the `LESS=-R` default when there is no `LESS` and no arguments works as before.\n\nI did not handle less's `-+R` and `-!R` reset forms. They would be read as requesting raw mode, but no test covers them and they're rare.\n\n`test_echo_via_pager_streams_each_write` still fails. It wasn't in this issue's list, and I confirmed it fails with my changes stashed too. `CHANGES.md` already covers both changes, so I left it alone.\n\nReady for issue 13.","calls":[]}},{"n":91,"segment":0,"pos":238,"turn":13,"index":0,"stop_reason":"tool_use","context":210942,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_arguments.py tests/test_options.py -q -p no:randomly -k \"never_sees_unset\" 2>&1 | grep -E \"^(FAILED|E )|passed|failed\" | head -30; grep -n \"def test_argument_custom_class_can_override_type_cast_value_and_never_sees_unset\" -B25 -A45 tests/test_arguments.py"}}]}},{"n":92,"segment":0,"pos":240,"turn":13,"index":1,"stop_reason":"tool_use","context":212649,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -n \"def test_option_custom_class_can_override_type_cast_value_and_never_sees_unset\" -B22 -A25 tests/test_options.py; sed -n 2575,2660p src/click/core.py"}}]}},{"n":93,"segment":0,"pos":242,"turn":13,"index":2,"stop_reason":"tool_use","context":214650,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 2556,2582p src/click/core.py; grep -n \"def type_cast_value\" -A25 src/click/core.py | sed -n '/^3[0-9][0-9][0-9]/p'"}}]}},{"n":94,"segment":0,"pos":244,"turn":13,"index":3,"stop_reason":"tool_use","context":215472,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -rn \"type_cast_value\\|process_value\" src/click/*.py tests/*.py docs/*.md | grep -v \"\\.pyc\""}}]}},{"n":95,"segment":0,"pos":246,"turn":13,"index":4,"stop_reason":"tool_use","context":219885,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 925,955p src/click/core.py; sed -n 3525,3545p src/click/core.py; sed -n 3120,3160p src/click/core.py; sed -n 660,676p tests/test_options.py"}}]}},{"n":96,"segment":0,"pos":248,"turn":13,"index":5,"stop_reason":"tool_use","context":221828,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/core.py\"\ns = open(p).read()\n\nold = ''' 1. Type cast the value using :meth:`type_cast_value`.\n 2. Check if the value is missing'''\nnew = ''' 1. Type cast the value using :meth:`type_cast_value`. A value that was not set\n is not passed to it, as the :attr:`UNSET` sentinel is an implementation\n detail: it becomes an empty tuple if the parameter takes multiple values,\n and stays :attr:`UNSET` otherwise.\n 2. Check if the value is missing'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = ''' value = self.type_cast_value(ctx, value)\n\n if self.required and self.value_is_missing(value):\n raise MissingParameter(ctx=ctx, param=self)\n'''\nnew = ''' # Shelter ``type_cast_value``, which subclasses can override, from ever seeing\n # ``UNSET``: the cases in which it gets special treatment are handled here.\n if value is UNSET:\n if self.multiple or self.nargs == -1:\n value = ()\n else:\n value = self.type_cast_value(ctx, value)\n\n if self.required and self.value_is_missing(value):\n raise MissingParameter(ctx=ctx, param=self)\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = ''' def type_cast_value(self, ctx: Context, value: t.Any) -> t.Any:\n if self.is_flag and not self.required:\n if value is UNSET:\n if self.is_bool_flag:\n # If the flag is a boolean flag, we return False if it is not set.\n value = False\n return super().type_cast_value(ctx, value)\n'''\nnew = ''' def process_value(self, ctx: Context, value: t.Any) -> t.Any:\n # A boolean flag that is not set is False. This has to be resolved before\n # ``type_cast_value`` is called, so it never sees ``UNSET``.\n if value is UNSET and self.is_flag and not self.required and self.is_bool_flag:\n value = False\n\n return super().process_value(ctx, value)\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\nawk 'length > 88 {print FILENAME\": \"FNR\": \"length}' src/click/core.py\n.venv/bin/python -m pytest tests/test_arguments.py tests/test_options.py -q -p no:randomly -k \"never_sees_unset\" 2>&1 | tail -3\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now13.txt\nwc -l < $S/now13.txt; echo \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now13.txt\necho \"--- fixed this round:\"; comm -23 $S/now12.txt $S/now13.txt"}}]}},{"n":97,"segment":0,"pos":250,"turn":13,"index":6,"stop_reason":"tool_use","context":225475,"step":{"text":"All 11 cases pass. I'll also check that a custom `type_cast_value` really never sees the sentinel on the paths the tests don't cover, and that the built-in behaviour is intact.","calls":[{"name":"Bash","input":{"command":".venv/bin/python - <<'EOF'\nimport click\nfrom click._utils import UNSET\nfrom click.testing import CliRunner\n\nseen = []\nclass Opt(click.Option):\n def type_cast_value(self, ctx, value):\n seen.append((self.name, value)); assert value is not UNSET\n return super().type_cast_value(ctx, value)\nclass Arg(click.Argument):\n def type_cast_value(self, ctx, value):\n seen.append((self.name, value)); assert value is not UNSET\n return super().type_cast_value(ctx, value)\n\n@click.command()\n@click.option(\"--plain\", cls=Opt)\n@click.option(\"--flag\", is_flag=True, cls=Opt)\n@click.option(\"--multi\", multiple=True, cls=Opt)\n@click.option(\"--needed\", required=True, cls=Opt)\n@click.argument(\"rest\", nargs=-1, cls=Arg)\n@click.argument(\"maybe\", required=False, cls=Arg)\ndef cli(plain, flag, multi, needed, rest, maybe):\n click.echo(repr((plain, flag, multi, needed, rest, maybe)))\n\nr = CliRunner()\nres = r.invoke(cli, [])\nprint(\"missing required ->\", res.exit_code, res.output.strip().splitlines()[-1])\nres = r.invoke(cli, [\"--needed\", \"x\"])\nprint(\"all unset ->\", res.exit_code, res.output.strip(), res.exception)\nprint(\"calls seen:\", seen)\nEOF"}}]}},{"n":98,"segment":0,"pos":253,"turn":13,"index":7,"stop_reason":"end_turn","context":226305,"step":{"text":"Issue 13 is fixed. All 11 cases of the two named tests pass, and nothing that passed before now fails. With a fixed `PYTHONHASHSEED` the suite is down to 21 failures from 86 at the start.\n\n**Cause:** `Parameter.process_value` passed whatever value the parser produced into `type_cast_value`, and for a parameter nobody set that value is the internal `UNSET`. The built-in `type_cast_value` methods knew how to handle it, but a user's override, which the docs invite, got the raw sentinel.\n\n**Fix (`src/click/core.py`):**\n- **`Parameter.process_value`:** it no longer calls `type_cast_value` for an unset value. The one case that needs special treatment is handled there. A parameter that takes several values (`multiple` or `nargs=-1`) gets `()`, and anything else stays `UNSET` for the required and missing checks that follow.\n- **`Option.process_value`:** a new override turns an unset, non-required boolean flag into `False` before delegating. That logic used to live in `Option.type_cast_value`, which is now removed since nothing else was in it.\n- **`Parameter.type_cast_value`:** it still tolerates `UNSET`, so a direct call such as `opt.type_cast_value(ctx, opt.get_default(ctx))` behaves as before.\n\nI checked by hand with custom `Option` and `Argument` classes covering a plain option, a flag, `multiple`, a required option and `nargs=-1` / optional arguments:\n- **Sentinel:** no override was ever called with the sentinel.\n- **Defaults:** unset values came out as `None`, `False` and `()` as before.\n- **Missing required option:** a missing required option still gives `Missing option '--needed'`.\n\nI didn't touch `CHANGES.md`, and issue 8's process_value docstring note is unaffected.\n\nReady for issue 14.","calls":[]}},{"n":99,"segment":0,"pos":255,"turn":14,"index":0,"stop_reason":"tool_use","context":227049,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 926,968p tests/test_termui.py; sed -n '/^def echo_via_pager/,/^def progressbar/p' src/click/termui.py | head -120"}}]}},{"n":100,"segment":0,"pos":257,"turn":14,"index":1,"stop_reason":"tool_use","context":228168,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/termui.py\"\ns = open(p).read()\nold = ''' for text in itertools.chain(text_generator, \"\\\\n\"):\n pager.write(text)\n'''\nnew = ''' for text in itertools.chain(text_generator, \"\\\\n\"):\n pager.write(text)\n # Flush every chunk, or the pipe to the pager buffers the output of a\n # slow generator until the end.\n pager.flush()\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\n.venv/bin/python -m pytest tests/test_termui.py -q -p no:randomly -k \"pager\" 2>&1 | tail -3\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now14.txt\nwc -l < $S/now14.txt; echo \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now14.txt\necho \"--- fixed this round:\"; comm -23 $S/now13.txt $S/now14.txt"}}]}},{"n":101,"segment":0,"pos":259,"turn":14,"index":2,"stop_reason":"tool_use","context":229630,"step":{"text":"The test passes. I'll confirm the streaming with a real pager process and a slow generator, since that's the behaviour the issue describes and the unit test only checks call order.","calls":[{"name":"Bash","input":{"command":"cat > \"/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad/slow.py\" <<'EOF'\nimport time, click, click._termui_impl as impl\nimpl.isatty = lambda _: True\nt0 = time.time()\ndef gen():\n for i in range(3):\n yield f\"chunk {i} produced at {time.time() - t0:.1f}s\\n\"\n time.sleep(1)\nclick.echo_via_pager(gen())\nEOF\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPAGER=\"perl -ne 'BEGIN{\\$|=1; use Time::HiRes qw(time); \\$t=time} printf \\\"pager got: %s (at %.1fs)\\n\\\", \\$_ =~ s/\\n//r, time-\\$t'\" .venv/bin/python $S/slow.py"}}]}},{"n":102,"segment":0,"pos":262,"turn":14,"index":3,"stop_reason":"end_turn","context":230403,"step":{"text":"Issue 14 is fixed. `tests/test_termui.py::test_echo_via_pager_streams_each_write` passes, and nothing that passed before now fails. With a fixed `PYTHONHASHSEED` the suite is down to 20 failures from 86 at the start. That's exactly the 20 open issues minus the ones I've fixed, so I expect the rest of the failures to belong to issues 15–20.\n\n**Cause:** `echo_via_pager` wrote each chunk to the pager but never flushed. The pipe to a real pager process is buffered, so a slow generator's output sat in that buffer until the generator finished, or until the buffer filled.\n\n**Fix (`src/click/termui.py`):** `echo_via_pager` now calls `pager.flush()` after every chunk, including the trailing newline. A flush that hits a pager that has already exited still ends quietly, because `_pipepager` already ignores `BrokenPipeError`.\n\nI ran a real pager process against a generator that yields once per second. Before, everything would have arrived at the end. Now the pager sees each chunk when it is produced, at 0.0s, 0.8s and 1.8s against 0.0s, 1.1s and 2.1s for the generator.\n\nI kept the flush in `echo_via_pager` and did not make `get_pager_file`'s writer flush on every `write`. Callers of that public context manager may write many small pieces and can flush when they choose.\n\nI left `CHANGES.md` alone, since the released sections already mention streaming for #3242 and #2542.\n\nReady for issue 15.","calls":[]}},{"n":103,"segment":0,"pos":264,"turn":15,"index":0,"stop_reason":"tool_use","context":230991,"step":{"text":"This is the flaky test I saw back in issue 4. `get_help_option_names` builds a `set`, so the order depends on hash randomization and duplicates are only removed by accident.","calls":[{"name":"Bash","input":{"command":"sed -n 405,435p tests/test_commands.py; python3 - <<'EOF'\np = \"src/click/core.py\"\ns = open(p).read()\nold = ''' all_names = set(ctx.help_option_names)\n for param in self.params:\n all_names.difference_update(param.opts)\n all_names.difference_update(param.secondary_opts)\n return list(all_names)\n'''\nnew = ''' taken = set()\n for param in self.params:\n taken.update(param.opts)\n taken.update(param.secondary_opts)\n # Drop duplicates and names another parameter uses, keeping the order the\n # names were declared in.\n return [\n name for name in dict.fromkeys(ctx.help_option_names) if name not in taken\n ]\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\nawk 'length > 88 {print FILENAME\": \"FNR\": \"length}' src/click/core.py"}}]}},{"n":104,"segment":0,"pos":267,"turn":15,"index":1,"stop_reason":"tool_use","context":232248,"step":{"text":"The stable order should hold under any hash seed, not just the one I use for comparisons. I'll run the test under many seeds and then the full suite.","calls":[{"name":"Bash","input":{"command":"for seed in 0 1 2 3 7 42 123 999 31337 random random random; do PYTHONHASHSEED=$seed .venv/bin/python -m pytest tests/test_commands.py -q -p no:randomly -k test_get_help_option_names 2>&1 | tail -1; done | sort | uniq -c\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now15.txt\nwc -l < $S/now15.txt; echo \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now15.txt\necho \"--- fixed this round:\"; comm -23 $S/now14.txt $S/now15.txt"}}]}},{"n":105,"segment":0,"pos":270,"turn":15,"index":2,"stop_reason":"end_turn","context":232969,"step":{"text":"Issue 15 is fixed. `tests/test_commands.py::test_get_help_option_names` passes across all 13 cases and across twelve different hash seeds, including random ones, so it no longer depends on hash randomization. Nothing that passed before now fails, and with a fixed `PYTHONHASHSEED` the suite is down to 16 failures from 86 at the start.\n\n**Cause:** `Command.get_help_option_names` in `src/click/core.py` put `ctx.help_option_names` into a `set`, removed the names other parameters use, and returned `list(set)`. A set has no declared order, so the result depended on the hash seed. That's why this test failed a different number of cases on each run back in issue 4.\n\n**Fix:** it now builds the list with `dict.fromkeys(ctx.help_option_names)`, which drops duplicates but keeps first-seen order. It then filters out any name another parameter's `opts` or `secondary_opts` already uses. It returns the same names as before, now in the order they were declared.\n\nI left `CHANGES.md` alone. It already records the change from pull request 3728, which the test's docstring points to.\n\nReady for issue 16.","calls":[]}},{"n":106,"segment":0,"pos":272,"turn":16,"index":0,"stop_reason":"tool_use","context":233637,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"cat tests/test_deprecations.py | head -80; grep -n \"isolated_filesystem\" -r src docs tests CHANGES.md | grep -v \"\\.pyc\" | head -40"}}]}},{"n":107,"segment":0,"pos":274,"turn":16,"index":1,"stop_reason":"tool_use","context":235898,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 60,75p CHANGES.md; sed -n 175,215p docs/testing.md; sed -n 735,785p src/click/testing.py; grep -n \"DeprecationWarning\" -B4 -A6 src/click/core.py | sed -n 1,60p; grep -n \"^import\\|^from\" src/click/testing.py | head -30"}},{"name":"Bash","input":{"command":"grep -n \"deprecated\\|DeprecationWarning\" src/click/*.py | grep -v \"self.deprecated\\|deprecated:\\|deprecated=\\|\\.deprecated\\|_format_deprecated\\|deprecated \\(and\\|option\\|arg\\)\" | head -30; sed -n 436,500p tests/test_testing.py"}}]}},{"n":108,"segment":0,"pos":278,"turn":16,"index":2,"stop_reason":"tool_use","context":240603,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/testing.py\"\ns = open(p).read()\n\nold = \"import typing as t\\nfrom types import TracebackType\\n\"\nnew = \"import typing as t\\nimport warnings\\nfrom types import TracebackType\\n\"\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = ''' :param temp_dir: Create the temporary directory under this\n directory. If given, the created directory is not removed\n when exiting.\n\n .. versionchanged:: 8.0\n Added the ``temp_dir`` parameter.\n \"\"\"\n cwd = os.getcwd()\n'''\nnew = ''' :param temp_dir: Create the temporary directory under this\n directory. If given, the created directory is not removed\n when exiting.\n\n .. deprecated:: 8.5.0\n Will be removed in Click 9.0. This predates Python 3 and pytest.\n It relies on :func:`os.chdir`, which changes process-global state,\n so it is not thread-safe: threads running it at the same time\n change the directory under each other. Use a temporary directory\n instead, such as :class:`tempfile.TemporaryDirectory` or pytest's\n ``tmp_path`` fixture, and pass absolute paths to the command. To\n run tests in parallel, use processes, such as ``pytest-xdist``,\n rather than threads.\n\n .. versionchanged:: 8.0\n Added the ``temp_dir`` parameter.\n \"\"\"\n # Attributed to the ``with`` statement: the generator runs when it is entered.\n warnings.warn(\n \"'isolated_filesystem' is deprecated and will be removed in Click 9.0.\"\n \" Use a temporary directory, such as 'tempfile.TemporaryDirectory' or\"\n \" pytest's 'tmp_path' fixture, with absolute paths instead.\",\n DeprecationWarning,\n stacklevel=3,\n )\n cwd = os.getcwd()\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\nawk 'length > 88 {print FILENAME\": \"FNR\": \"length}' src/click/testing.py\n.venv/bin/python -m pytest tests/test_deprecations.py tests/test_testing.py -q -p no:randomly 2>&1 | tail -3\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now16.txt\nwc -l < $S/now16.txt; echo \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now16.txt\necho \"--- fixed this round:\"; comm -23 $S/now15.txt $S/now16.txt\ncat > $S/warn.py <<'EOF'\nimport warnings\nfrom click.testing import CliRunner\nwarnings.simplefilter(\"always\")\nwith CliRunner().isolated_filesystem():\n pass\nEOF\n.venv/bin/python $S/warn.py"}}]}},{"n":109,"segment":0,"pos":280,"turn":16,"index":3,"stop_reason":"tool_use","context":243516,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"git blame -s -L29,29 src/click/testing.py | cut -c1-60; grep -rn \"isolated_filesystem\" src/click/*.py | grep -v \"^src/click/testing.py\""}}]}},{"n":110,"segment":0,"pos":282,"turn":16,"index":4,"stop_reason":"end_turn","context":243763,"step":{"text":"Issue 16 is done. `tests/test_deprecations.py::test_isolated_filesystem_deprecated` passes, and nothing that passed before now fails. With a fixed `PYTHONHASHSEED` the suite is down to 15 failures from 86 at the start.\n\n**Change (`src/click/testing.py`):**\n- **Warning:** `CliRunner.isolated_filesystem()` now emits a `DeprecationWarning`. The message reads \"'isolated_filesystem' is deprecated and will be removed in Click 9.0. Use a temporary directory, such as 'tempfile.TemporaryDirectory' or pytest's 'tmp_path' fixture, with absolute paths instead.\"\n- **Message format:** it starts with `'isolated_filesystem'` in quotes, like the other click deprecations. That is also the form the existing `filterwarnings` markers in `tests/test_testing.py` match, so its two isolated-filesystem tests keep running without the warning turning into an error.\n- **Attribution:** it's a context manager, so the warning fires when the `with` statement is entered. I set `stacklevel=3` so it points at the caller's `with` line, not into `contextlib`. I checked that by hand.\n- **Docstring:** a `.. deprecated:: 8.5.0` note gives the limits.\n - It predates Python 3 and pytest.\n - It relies on `os.chdir`, which changes process-global state, so it isn't thread-safe.\n - The alternatives are `tempfile.TemporaryDirectory` or pytest's `tmp_path` with absolute paths.\n - Parallel test runs should use processes such as `pytest-xdist`, not threads.\n\n`docs/testing.md`, `docs/upgrade-guides.md` and `CHANGES.md` already document the deprecation, so I left them alone. Behaviour is otherwise unchanged. The directory is still created, entered and cleaned up as before.\n\nReady for issue 17.","calls":[]}},{"n":111,"segment":0,"pos":284,"turn":17,"index":0,"stop_reason":"tool_use","context":244509,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 325,375p tests/test_termui.py; .venv/bin/python -m pytest tests/test_termui.py -q -p no:randomly -k test_progressbar_item_show_func 2>&1 | grep -E \"^E\" | head"}}]}},{"n":112,"segment":0,"pos":286,"turn":17,"index":1,"stop_reason":"tool_use","context":245382,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/_termui_impl.py\"\ns = open(p).read()\nold = ''' for rv in self.iter:\n self.current_item = rv\n yield rv\n self.update(1)\n'''\nnew = ''' for rv in self.iter:\n self.current_item = rv\n\n # Render before the item is processed, so item_show_func shows the\n # item being worked on. Only at the beginning of an update\n # interval, so update_min_steps still limits how often it renders.\n if self._completed_intervals == 0:\n self.render_progress()\n\n yield rv\n self.update(1)\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\n.venv/bin/python -m pytest tests/test_termui.py -q -p no:randomly -k \"progressbar\" 2>&1 | tail -3\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now17.txt\nwc -l < $S/now17.txt; echo \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now17.txt\necho \"--- fixed this round:\"; comm -23 $S/now16.txt $S/now17.txt"}}]}},{"n":113,"segment":0,"pos":288,"turn":17,"index":2,"stop_reason":"tool_use","context":248061,"step":{"text":"The target test passes. I'll check that the extra render respects `update_min_steps`, since rendering on every item would defeat it.","calls":[{"name":"Bash","input":{"command":".venv/bin/python - <<'EOF'\nimport io, click, click._termui_impl as impl\nimpl.isatty = lambda _: True\n\nfor steps in (1, 5):\n renders = []\n s = io.StringIO()\n with click.progressbar(range(20), update_min_steps=steps, item_show_func=lambda x: f\"item={x}\", file=s) as bar:\n orig = bar.render_progress\n bar.render_progress = lambda: (renders.append(bar.current_item), orig())[1]\n for _ in bar:\n pass\n print(f\"update_min_steps={steps}: {len(renders)} renders, current item at each: {renders}\")\nEOF"}}]}},{"n":114,"segment":0,"pos":291,"turn":17,"index":3,"stop_reason":"end_turn","context":248676,"step":{"text":"Issue 17 is fixed. `tests/test_termui.py::test_progressbar_item_show_func` passes, and nothing that passed before now fails. With a fixed `PYTHONHASHSEED` the suite is down to 14 failures from 86 at the start.\n\n**Cause:** in `ProgressBar.generator()` (`src/click/_termui_impl.py`), the bar set `current_item` when it took an item from the iterable and yielded it right away. The next render only happened after the loop body, inside `update(1)`. So while the body ran, the line on screen showed the previous item. For the first item that was `None`, giving `0% None item 0` instead of `0 item 0`.\n\n**Fix:** it now renders as soon as the item becomes current, before yielding it, so `item_show_func` sees the item being worked on. It only does this at the start of an update interval (`_completed_intervals == 0`), so `update_min_steps` still limits how often the bar redraws. I checked this with 20 items:\n\n| `update_min_steps` | renders | item at each render |\n|---|---|---|\n| 1 | 42 (about two per item) | each item shows up before its body runs |\n| 5 | 10 | items 0, 4, 5, 9, 10, 14, 15, 19, plus the first and last `None` renders |\n\nThe issue 9 changes, which apply pending steps so the bar lands on its total, still pass. The other progress-bar tests still pass too.\n\n`CHANGES.md` is untouched, as it already describes `item_show_func`.\n\nReady for issue 18.","calls":[]}},{"n":115,"segment":0,"pos":293,"turn":18,"index":0,"stop_reason":"tool_use","context":249473,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -n \"def test_deprecated_empty_help_no_leading_space\" -B22 -A25 tests/test_commands.py tests/test_options.py; .venv/bin/python -m pytest tests/test_commands.py tests/test_options.py -q -p no:randomly -k test_deprecated_empty_help_no_leading_space 2>&1 | grep -E \"^(E |FAILED)\" | head -30"}}]}},{"n":116,"segment":0,"pos":295,"turn":18,"index":1,"stop_reason":"tool_use","context":253112,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -n \"_format_deprecated_label\\|_format_deprecated_suffix\" src/click/*.py; sed -n 96,116p src/click/core.py; grep -n \"def format_help_text\" -A25 src/click/core.py; grep -n \"def get_help_record\" -A50 src/click/core.py | grep -n \"deprecated\" "}}]}},{"n":117,"segment":0,"pos":297,"turn":18,"index":2,"stop_reason":"tool_use","context":254341,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 1270,1295p src/click/core.py; sed -n 3005,3025p src/click/core.py; sed -n 3720,3740p src/click/core.py; grep -n \"def get_help_record\\|def get_help_spec\" -A40 src/click/core.py | sed -n '/Option/,$p' | head -5; sed -n 3395,3470p src/click/core.py"}}]}},{"n":118,"segment":0,"pos":299,"turn":18,"index":3,"stop_reason":"tool_use","context":256323,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/core.py\"\ns = open(p).read()\n\nold = '''def _format_deprecated_suffix(deprecated: bool | str) -> str:'''\nnew = '''def _add_deprecated_label(text: str, deprecated: bool | str) -> str:\n \"\"\"Append the deprecation label to a command's help ``text``. Without any\n text, the label stands alone, rather than after a space.\n \"\"\"\n label = _format_deprecated_label(deprecated)\n return f\"{_(text)} {label}\" if text else label\n\n\ndef _format_deprecated_suffix(deprecated: bool | str) -> str:'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = ''' text = f\"{_(text)} {_format_deprecated_label(self.deprecated)}\"\n'''\nnew = ''' text = _add_deprecated_label(text, self.deprecated)\n'''\nassert s.count(old) == 2\ns = s.replace(old, new)\n\nold = ''' help = f\"{help} {label}\" if help is not None else label\n'''\nnew = ''' help = f\"{help} {label}\" if help else label\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\nawk 'length > 88 {print FILENAME\": \"FNR\": \"length}' src/click/core.py\n.venv/bin/python -m pytest tests/test_commands.py tests/test_options.py -q -p no:randomly -k \"deprecated\" 2>&1 | tail -3\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now18.txt\nwc -l < $S/now18.txt; echo \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now18.txt\necho \"--- fixed this round:\"; comm -23 $S/now17.txt $S/now18.txt | sed 's/\\[.*//' | sort | uniq -c"}}]}},{"n":119,"segment":0,"pos":301,"turn":18,"index":4,"stop_reason":"tool_use","context":258196,"step":{"text":"Both target tests pass. As a last check I'll look at the rendered output for the other affected surfaces: the subcommand listing, which uses the short help, and an option in `--help`.","calls":[{"name":"Bash","input":{"command":".venv/bin/python - <<'EOF'\nimport click\nfrom click.testing import CliRunner\n\n@click.group()\ndef cli(): pass\n\n@cli.command(deprecated=True)\ndef old(): pass\n\n@cli.command(deprecated=\"use new\", help=\"Does the thing.\")\n@click.option(\"--flag\", deprecated=True, help=\"\")\n@click.option(\"--other\", deprecated=\"no more\")\ndef older(flag, other): pass\n\nr = CliRunner()\nprint(repr(r.invoke(cli, [\"--help\"]).output))\nprint(repr(r.invoke(cli, [\"old\", \"--help\"]).output))\nprint(repr(r.invoke(cli, [\"older\", \"--help\"]).output))\nEOF"}}]}},{"n":120,"segment":0,"pos":304,"turn":18,"index":5,"stop_reason":"end_turn","context":258950,"step":{"text":"Issue 18 is fixed. All six failing cases now pass (four in `tests/test_commands.py`, two in `tests/test_options.py`), and nothing that passed before now fails. With a fixed `PYTHONHASHSEED` the suite is down to 8 failures from 86 at the start.\n\n**Cause:** in `src/click/core.py`, the deprecation label was joined to the help text with a space even when there was no text.\n- **Options:** `Option.__init__` used `if help is not None`, and an empty string isn't `None`. Empty help therefore became `\" (DEPRECATED)\"`.\n- **Commands:** `format_help_text` and `get_short_help_str` did `f\"{_(text)} {label}\"` unconditionally. In `--help` output that showed up as three spaces of indent instead of two.\n- **Arguments:** these already guarded on truthiness, so they were fine.\n\n**Fix:**\n- **`Option.__init__`:** it now checks truthiness, matching `Argument`.\n- **`_add_deprecated_label`:** a new helper for the two `Command` sites puts the label on its own when there's no text.\n- **`_(text)` guard:** the helper only calls `_()` on non-empty text. `gettext(\"\")` returns the translation catalog's header, so translating empty text wasn't safe.\n\nI checked the rendered output by hand. A deprecated command with no help shows ` (DEPRECATED)` at normal indentation. The same holds in its subcommand-list entry, and for a deprecated option with empty help. Help text that exists is unchanged.\n\n`CHANGES.md` untouched.\n\nReady for issue 19.","calls":[]}},{"n":121,"segment":0,"pos":306,"turn":19,"index":0,"stop_reason":"tool_use","context":259588,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"cat tests/test_imports.py; .venv/bin/python -m pytest tests/test_imports.py -q -p no:randomly 2>&1 | grep -E \"^(E |FAILED)\" | head; grep -n \"typing_extensions\" -r src/click/*.py pyproject.toml"}}]}},{"n":122,"segment":0,"pos":308,"turn":19,"index":1,"stop_reason":"tool_use","context":260773,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python - <<'EOF'\nimport subprocess, sys, json, re\nsys.path.insert(0, \"tests\")\nimport test_imports as ti\nrv = subprocess.run([sys.executable, \"-\"], input=ti.IMPORT_TEST, capture_output=True).stdout.decode()\nfound = json.loads(rv)\nbad = sorted(m for m in found if not (m == \"click\" or m.startswith(\"click.\")) and m not in ti.ALLOWED_IMPORTS)\nprint(\"not allowed:\", bad)\nEOF\ngrep -n \"builtins\" src/click/*.py"}}]}},{"n":123,"segment":0,"pos":310,"turn":19,"index":2,"stop_reason":"tool_use","context":261291,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 1,50p src/click/types.py; sed -n 50,80p src/click/shell_completion.py; sed -n 24,50p src/click/termui.py; sed -n 125,160p src/click/termui.py; git log --oneline -3; git diff HEAD --stat"}}]}},{"n":124,"segment":0,"pos":312,"turn":19,"index":3,"stop_reason":"tool_use","context":263723,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 1,50p pyproject.toml; .venv/bin/python --version; grep -n \"typing.extensions\\|typing_extensions\" pyproject.toml docs/*.md CHANGES.md | head -20; ls ~/.cache/taskcut-eval/workspaces/issues-long--off--sonnet/.venv/lib/*/site-packages | grep -i typing"}}]}},{"n":125,"segment":0,"pos":314,"turn":19,"index":4,"stop_reason":"tool_use","context":266241,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"grep -n \"ParamType\\[\" src/click/*.py | grep -v \"^\\S*:\\s*[0-9]*:\\s*#\" | head -50; grep -n \"_InputT_contra\" src/click/*.py"}}]}},{"n":126,"segment":0,"pos":316,"turn":19,"index":5,"stop_reason":"tool_use","context":268634,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"for v in 3.10 3.11 3.12 3.13; do which python$v 2>/dev/null; done; ls ~/.pyenv/versions 2>/dev/null; which uv 2>/dev/null && uv python list --only-installed 2>/dev/null | head; ls /opt/homebrew/bin 2>/dev/null | grep -i \"^python3\" | head; ls /Library/Frameworks/Python.framework/Versions 2>/dev/null"}},{"name":"Bash","input":{"command":"sed -n 49,70p src/click/types.py; sed -n 205,262p src/click/types.py; grep -n \"_is_expected_type\" src/click/*.py"}}]}},{"n":127,"segment":0,"pos":320,"turn":19,"index":6,"stop_reason":"tool_use","context":274962,"step":{"text":"Python 3.11, 3.12 and 3.13 are installed through `uv`, so I can test the below-3.13 case directly. First I'll confirm the real problem on 3.12.","calls":[{"name":"Bash","input":{"command":"P312=~/.local/share/uv/python/cpython-3.12-macos-aarch64-none/bin/python3.12; P311=~/.local/share/uv/python/cpython-3.11-macos-aarch64-none/bin/python3.11; for P in $P311 $P312; do PYTHONPATH=src $P -c \"import click; print(click.__name__, 'imported')\" 2>&1 | tail -2; done; $P312 -c \"import typing_extensions\" 2>&1 | tail -1"}}]}},{"n":128,"segment":0,"pos":323,"turn":19,"index":7,"stop_reason":"tool_use","context":275557,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 62,80p src/click/_winconsole.py; grep -n \"sys\\.\\|TypeVar\" src/click/types.py | head -20; sed -n 240,256p src/click/termui.py"}}]}},{"n":129,"segment":0,"pos":325,"turn":19,"index":8,"stop_reason":"tool_use","context":278289,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/types.py\"\ns = open(p).read()\n\nold = '''# TypeVar(default=...) support.\nif sys.version_info >= (3, 13):\n from typing import TypeVar\nelse:\n from typing_extensions import TypeVar\n\nif t.TYPE_CHECKING:\n import typing_extensions as te\n'''\nnew = '''if t.TYPE_CHECKING:\n import typing_extensions as te\n\n # TypeVar(default=...) support. It only exists for type checkers: at runtime\n # this would need Python 3.13, or importing typing_extensions.\n from typing_extensions import TypeVar\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = '''_InputT_contra = TypeVar(\"_InputT_contra\", contravariant=True, default=t.Any)\n'''\nnew = '''\nif t.TYPE_CHECKING:\n _InputT_contra = TypeVar(\"_InputT_contra\", contravariant=True, default=t.Any)\nelse:\n _InputT_contra = t.TypeVar(\"_InputT_contra\", contravariant=True)\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\nsed -n 20,45p src/click/types.py"}}]}},{"n":130,"segment":0,"pos":327,"turn":19,"index":9,"stop_reason":"tool_use","context":279213,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 52,125p src/click/types.py"}}]}},{"n":131,"segment":0,"pos":329,"turn":19,"index":10,"stop_reason":"tool_use","context":280389,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/types.py\"\ns = open(p).read()\n\nold = ''' #: the descriptive name of this type\n name: str\n\n #: if a list of this type is expected and the value is pulled from a\n'''\nnew = ''' if not t.TYPE_CHECKING:\n\n def __class_getitem__(cls, params: t.Any) -> t.Any:\n # ``_InputT_contra`` only has a default for type checkers, as a\n # default at runtime needs Python 3.13, or importing typing_extensions.\n # Fill it in here, so ``ParamType[int]`` still works.\n if not isinstance(params, tuple):\n params = (params,)\n\n missing = cls.__parameters__[len(params) :]\n\n if missing and all(p is _InputT_contra for p in missing):\n params += (t.Any,) * len(missing)\n\n return super().__class_getitem__(params)\n\n #: the descriptive name of this type\n name: str\n\n #: if a list of this type is expected and the value is pulled from a\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\n\np = \"src/click/termui.py\"\ns = open(p).read()\nold = \"import builtins\\nimport collections.abc as cabc\\n\"\nnew = \"import collections.abc as cabc\\n\"\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = '''def _is_expected_type(\n default: object,\n type: ParamType[V, t.Any] | V | None,\n) -> TypeIs[V]:\n return builtins.type(default) is builtins.type(type)\n'''\nnew = '''def _is_expected_type(\n default: object,\n type_: ParamType[V, t.Any] | V | None,\n) -> TypeIs[V]:\n return type(default) is type(type_)\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = \"_is_expected_type(default=default, type=type)\"\nnew = \"_is_expected_type(default=default, type_=type)\"\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\ngrep -n \"^import sys\\|sys\\.\" src/click/types.py | head -3; awk 'length > 88 {print FILENAME\": \"FNR\": \"length}' src/click/types.py src/click/termui.py\n.venv/bin/python -m pytest tests/test_imports.py -q -p no:randomly 2>&1 | tail -3"}}]}},{"n":132,"segment":0,"pos":331,"turn":19,"index":11,"stop_reason":"tool_use","context":281395,"step":{"text":"The import test passes. Now the real check: importing click and using `ParamType[...]` on Python 3.11, 3.12 and 3.13, where `typing_extensions` isn't installed.","calls":[{"name":"Bash","input":{"command":"git blame -s -L415,415 src/click/types.py | cut -c1-30\nfor V in 3.11 3.12 3.13; do\nP=~/.local/share/uv/python/cpython-$V-macos-aarch64-none/bin/python$V\nPYTHONPATH=src $P - <<'EOF'\nimport sys, typing as t\nimport click\nfrom click.types import ParamType, CompositeParamType\n\nassert \"typing_extensions\" not in sys.modules\na = ParamType[int]\nb = ParamType[int, str]\nT = t.TypeVar(\"T\")\nc = ParamType[T]\n\nclass MyType(ParamType[int]):\n name = \"my\"\n def convert(self, value, param, ctx):\n return int(value)\n\n@click.command()\n@click.option(\"--n\", type=MyType())\n@click.option(\"--d\", type=click.DateTime([\"%Y\"]))\n@click.argument(\"c\", type=click.Choice([\"x\", \"y\"]), required=False)\ndef cli(n, d, c): click.echo(repr((n, d and d.year, c)))\n\nfrom click.testing import CliRunner\nr = CliRunner().invoke(cli, [\"--n\", \"3\", \"--d\", \"2024\", \"x\"])\nprint(f\"py{sys.version_info[0]}.{sys.version_info[1]}: {a}, {b}, params of ParamType[T]={c.__args__} ->\", r.output.strip())\nfor bad in (lambda: ParamType[()], lambda: CompositeParamType[int, int, int]):\n try: bad(); print(\" no error?!\")\n except TypeError as e: pass\nEOF\ndone"}}]}},{"n":133,"segment":0,"pos":334,"turn":19,"index":12,"stop_reason":"tool_use","context":282629,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"S=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nP312=~/.local/share/uv/python/cpython-3.12-macos-aarch64-none/bin/python3.12\nPYTHONHASHSEED=0 PYTHONPATH=src:.venv/lib/python3.14/site-packages $P312 -m pytest -q -p no:randomly -p no:cacheprovider 2>&1 | tail -8\necho \"=== 3.14 ===\"\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now19.txt\nwc -l < $S/now19.txt; echo \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now19.txt\necho \"--- fixed this round:\"; comm -23 $S/now18.txt $S/now19.txt"}}]}},{"n":134,"segment":0,"pos":336,"turn":19,"index":13,"stop_reason":"tool_use","context":283799,"step":{"text":"On 3.12 the suite gives the same result as on 3.14, with only 7 failures left. I'll confirm the two sets match exactly.","calls":[{"name":"Bash","input":{"command":"S=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nfor V in 3.11 3.12; do P=~/.local/share/uv/python/cpython-$V-macos-aarch64-none/bin/python$V\nPYTHONHASHSEED=0 PYTHONPATH=src:.venv/lib/python3.14/site-packages $P -m pytest -q -p no:randomly -p no:cacheprovider 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/py$V.txt\necho \"py$V: $(wc -l < $S/py$V.txt) failures; differs from 3.14 set: $(diff -q $S/py$V.txt $S/now19.txt >/dev/null && echo no || echo YES)\"; done; cat $S/now19.txt | sed 's/\\[.*//' | sort | uniq -c"}}]}},{"n":135,"segment":0,"pos":339,"turn":19,"index":14,"stop_reason":"end_turn","context":284840,"step":{"text":"Issue 19 is fixed. `tests/test_imports.py::test_light_imports` passes, and nothing that passed before now fails. I also ran the whole suite on Python 3.11 and 3.12, and it gives the same result as on 3.14. With a fixed `PYTHONHASHSEED` the suite is down to 7 failures from 86 at the start.\n\nThe requirement had two parts, and the failing test only caught one.\n\n- **What the test caught:** `termui.py` did `import builtins` so `_is_expected_type` could reach the real `type` while a parameter named `type` shadowed it. I renamed that private parameter to `type_` and dropped the import.\n- **What it didn't:** `types.py` ran `from typing_extensions import TypeVar` on Python below 3.13. Click declares no dependencies and `typing_extensions` isn't installed here. I confirmed that `import click` crashed on both 3.11 and 3.12 with `ModuleNotFoundError`. The test passed on this 3.14 environment only because the import is skipped on 3.13+.\n\n**Fix (`src/click/types.py`):**\n- **Type checkers:** the `TypeVar(default=...)` import from `typing_extensions` now sits under `TYPE_CHECKING`, so they see the same default as before. The shell-completion module already used this pattern.\n- **Runtime:** the type variable is a plain `typing.TypeVar`. A small `ParamType.__class_getitem__` fills in the missing second parameter with `Any`, so `ParamType[int]`, which the built-in types use as base classes and the docs recommend, still works. It behaves identically on every Python version.\n- **Left alone:** other subscripts, such as `ParamType[int, str]`, and malformed ones such as `ParamType[()]` are passed on or rejected as before.\n\nI imported click and used `ParamType[...]`, a custom subclass, `DateTime` and `Choice` on 3.11, 3.12 and 3.13 without `typing_extensions`.\n\nRuff and mypy aren't installed, so the type-checker side (the `TYPE_CHECKING` branch and the `__class_getitem__` shim) is unchecked.\n\n`CHANGES.md` doesn't mention this, and I left it alone.\n\nReady for issue 20.","calls":[]}},{"n":136,"segment":0,"pos":341,"turn":20,"index":0,"stop_reason":"tool_use","context":285739,"step":{"text":"","calls":[{"name":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_formatting.py -q -p no:randomly 2>&1 | grep -E \"^(E |FAILED)\" | head -40; grep -n \"def test_help_formatter_write_usage\\b\" -B40 -A20 tests/test_formatting.py | head -150"}},{"name":"Bash","input":{"command":"grep -n \"def write_usage\" -B3 -A45 src/click/formatting.py"}}]}},{"n":137,"segment":0,"pos":345,"turn":20,"index":1,"stop_reason":"tool_use","context":288430,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"sed -n 500,545p tests/test_formatting.py; sed -n 593,680p tests/test_formatting.py; grep -n \"def wrap_text\" -A60 src/click/formatting.py | head -90"}}]}},{"n":138,"segment":0,"pos":347,"turn":20,"index":2,"stop_reason":"tool_use","context":290683,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/formatting.py\"\ns = open(p).read()\nold = ''' if prefix is None:\n prefix = \"{usage} \".format(usage=_(\"Usage:\"))\n\n usage_prefix = f\"{prefix:>{self.current_indent}}{prog} \"\n text_width = self.width - self.current_indent\n'''\nnew = ''' if prefix is None:\n prefix = \"{usage} \".format(usage=_(\"Usage:\"))\n\n if not args.strip():\n # There is nothing to wrap, and wrapping an empty text would drop the\n # prefix. Write the program name alone, without a separator after it.\n self.write(f\"{prefix:>{self.current_indent}}{prog}\\\\n\")\n return\n\n usage_prefix = f\"{prefix:>{self.current_indent}}{prog} \"\n text_width = self.width - self.current_indent\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\nawk 'length > 88 {print FILENAME\": \"FNR\": \"length}' src/click/formatting.py\n.venv/bin/python -m pytest tests/test_formatting.py -q -p no:randomly 2>&1 | tail -3\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--off--sonnet/421019fc-b74c-4c64-848b-65de805cb936/scratchpad\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | tail -3\nPYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep -E '^(FAILED|ERROR)' | sed 's/ - .*//' | sort > $S/now20.txt\nwc -l < $S/now20.txt; echo \"--- newly failing vs original baseline:\"; comm -13 $S/base0.txt $S/now20.txt\necho \"--- fixed this round:\"; comm -23 $S/now19.txt $S/now20.txt | sed 's/\\[.*//' | sort | uniq -c"}}]}},{"n":139,"segment":0,"pos":349,"turn":20,"index":3,"stop_reason":"tool_use","context":296313,"step":{"text":"","calls":[{"name":"Bash","input":{"command":"echo \"== default settings, random hash seeds ==\"; for i in 1 2 3 4 5; do .venv/bin/python -m pytest -q 2>&1 | tail -1; done\necho \"== other interpreters ==\"\nfor V in 3.11 3.12 3.13; do P=~/.local/share/uv/python/cpython-$V-macos-aarch64-none/bin/python$V\necho -n \"py$V: \"; PYTHONPATH=src:.venv/lib/python3.14/site-packages $P -m pytest -q -p no:cacheprovider 2>&1 | tail -1; done\necho \"== what changed ==\"; git status --short; git diff --stat | tail -1; echo \"tests touched: $(git status --short tests | wc -l)\""}}]}},{"n":140,"segment":0,"pos":351,"turn":20,"index":4,"stop_reason":"end_turn","context":297449,"step":{"text":"Issue 20 is fixed, which finishes all 20 issues. The full suite is green: **2058 passed, 25 skipped, 1 xfailed, 0 failed**. It passed 5 out of 5 runs with random hash seeds, and also on Python 3.11, 3.12 and 3.13. The run started at 86 failures.\n\n**Issue 20:** `HelpFormatter.write_usage` in `src/click/formatting.py` passed an empty `args` to `wrap_text`, which returns an empty string and drops the prefix. A command with no arguments printed a blank line instead of `Usage: cli`. In the wrap branch it printed a trailing space and an extra empty line. When there are no arguments, it now writes the prefix and program name directly, with no trailing separator. A styled prefix keeps its ANSI codes.\n\n**Where things stand:**\n- **Files:** 10 files changed, all in `src/click`. No test was modified, skipped or deleted, and `CHANGES.md` is untouched (the changelog already covers most of these).\n- **Coverage:** 44 target tests across the 20 issues now pass.\n- **Regression checks:** after every issue I diffed the failure list against the original baseline with a fixed hash seed, and nothing that had passed ever failed.\n\n**Judgment calls to look over:**\n- **Issue 3 (optional `Choice`/`DateTime` brackets):** a required `DateTime` argument still shows its own `[...]`, which reads as optional. That's separate from the issue, so I left it.\n- **Issue 12 (pager option parsing):** `less`'s `-+R` and `-!R` reset forms are not special-cased and would be read as requesting raw mode.\n- **Issue 10 (generated command names):** I added a guard so a function named `_cmd` keeps its name instead of becoming an empty command name.\n- **Issue 19 (`typing_extensions`):** I couldn't run ruff or mypy, since neither is installed, so the type-checker side is unchecked. The runtime side is tested on 3.11–3.14.\n\nThe `CHANGES.md` entries I first added for issues 3, 4, 5 and 6 turned out to duplicate ones the file already had, so I reverted them, as I mentioned earlier. Nothing is committed. All the changes are in the working tree for you to review.","calls":[]}}]} diff --git a/eval/replay/issues-long--off.labels b/eval/replay/issues-long--off.labels new file mode 100644 index 0000000..2b5df1f --- /dev/null +++ b/eval/replay/issues-long--off.labels @@ -0,0 +1,19 @@ +# issues-long--off: the issues-long workload, arm off: 20 real click changes, one per message. Claude Code 2.1.278, Sonnet 5, 2026-09-21. +# One line per step taskcut would judge: N moves on, S does not, E either. See eval/replay/LABELS.md. +5 S The suite has 84 failures, which are presumably the other open issues. To check I didn't add any, I'll compare against the baseline without my change. +12 S Working on issue 2. I've read `Command.main` and I'm now adding guards so a second Ctrl-C can't replace the exit code. +13 S Now `Command.main` itself. +18 S Now the types' `get_metavar` implementations, so I can see where the brackets come from. +40 S I'm on issue 5, working out how the automatic help option gets its name from `Option._parse_decls`. +43 S All ten failing cases across the five named tests now pass, and nothing new fails. I'll add the changelog entry and check the behaviour end to end. +67 S The cause is in `ProgressBar.update`. Steps are held back until `update_min_steps` is reached, so any remainder left at the end never gets applied to `pos`, an… +74 S `group()` goes through `command()`, so one change covers both. The changelog records this rule under 8.2.0: the suffixes `_command`, `_cmd`, `_group` and `_grp… +81 S It passes, but the `.format` template I wrote is clumsier than it needs to be. I'll simplify it before moving on. +97 S All 11 cases pass. I'll also check that a custom `type_cast_value` really never sees the sentinel on the paths the tests don't cover, and that the built-in beh… +101 S The test passes. I'll confirm the streaming with a real pager process and a slow generator, since that's the behaviour the issue describes and the unit test on… +104 S The stable order should hold under any hash seed, not just the one I use for comparisons. I'll run the test under many seeds and then the full suite. +113 S The target test passes. I'll check that the extra render respects `update_min_steps`, since rendering on every item would defeat it. +119 S Both target tests pass. As a last check I'll look at the rendered output for the other affected surfaces: the subcommand listing, which uses the short help, an… +127 S Python 3.11, 3.12 and 3.13 are installed through `uv`, so I can test the below-3.13 case directly. First I'll confirm the real problem on 3.12. +132 S The import test passes. Now the real check: importing click and using `ParamType[...]` on Python 3.11, 3.12 and 3.13, where `typing_extensions` isn't installed. +134 S On 3.12 the suite gives the same result as on 3.14, with only 7 failures left. I'll confirm the two sets match exactly. diff --git a/eval/replay/issues-long--on.json b/eval/replay/issues-long--on.json new file mode 100644 index 0000000..14cf09b --- /dev/null +++ b/eval/replay/issues-long--on.json @@ -0,0 +1 @@ +{"name":"issues-long--on","source":"the issues-long workload, arm on: the same at a floor of 30. Claude Code 2.1.278, Sonnet 5, 2026-09-21.","memory":[],"judged":[5,13,14,16,17,24,28,31,32,37,49,55,61,64,83,85,92,95,102,108,115,121,129,132,144,145,147],"segments":[[{"role":"user","text":"This is a checkout of click, the command-line library. Twenty issues are open against it -- bug reports and feature requests -- and I am going to hand them to you one at a time. Each comes with the tests that fail because of it; the tests are the specification.\n\nRun tests with `.venv/bin/python -m pytest`. The whole suite takes a few seconds.\n\nFor every issue: make the change in src/click. Never modify, skip or delete a test to make it pass. Do not break anything that currently works.\n\nAcknowledge and wait for the first issue.","toolUses":[]},{"role":"assistant","text":"Ready. I'll work each issue in `src/click`, treat the failing tests as the spec, and won't touch, skip or delete any test. I'll run the full suite (`.venv/bin/python -m pytest`) after each change to make sure nothing that currently works breaks.\n\nSend the first issue when you're ready.","toolUses":[]},{"role":"user","text":"Issue 1 of 20. Bug report.\n\n`click.echo` misbehaves when it is given empty bytes and a custom file.\n\nFailing:\n tests/test_utils/test_echo.py::test_echo_custom_file","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01DC7kUjh9hAZSodMRSAKFCW","tool":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_utils/test_echo.py -x -q 2>&1 | tail -30; git log --oneline | head -3"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Ge2aVcz6sfQtgpZyDX8sgC","tool":"Grep","input":{"pattern":"def echo\\(","path":"~/.cache/taskcut-eval/workspaces/issues-long--on--sonnet/src/click","output_mode":"content"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01DC7kUjh9hAZSodMRSAKFCW","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Ge2aVcz6sfQtgpZyDX8sgC","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01CirG2pWqdu567TqprH9L4u","tool":"Read","input":{"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--on--sonnet/src/click/utils.py","offset":245,"limit":120}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01CirG2pWqdu567TqprH9L4u","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_016zNmBgTpUP2s5dxJgAecKj","tool":"Grep","input":{"pattern":"def test_echo_custom_file","path":"~/.cache/taskcut-eval/workspaces/issues-long--on--sonnet/tests/test_utils/test_echo.py","output_mode":"content","-A":12}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_016zNmBgTpUP2s5dxJgAecKj","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01U34nYYFgo2zqWbmyFLF2nw","tool":"Edit","input":{"replace_all":false,"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--on--sonnet/src/click/utils.py","old_string":" out = out or \"\"\n if isinstance(out, str):","new_string":" if out is None:\n out = \"\"\n\n if isinstance(out, str):"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01U34nYYFgo2zqWbmyFLF2nw","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01N3PEMZ31HAHSBQfL811VsA","tool":"Bash","input":{"command":".venv/bin/python -m pytest -q 2>&1 | tail -15"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01N3PEMZ31HAHSBQfL811VsA","text":""}]},{"role":"assistant","text":"The suite shows 86 failures. Most should belong to the other open issues, but I'll compare against the baseline to be sure I didn't cause any of them.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_015x1wqYUK4rMZg9gXHvanzo","tool":"Bash","input":{"command":".venv/bin/python -m pytest -q 2>&1 | grep '^FAILED' | sed 's/ - .*//' | sort > \"$TMPDIR/after.txt\" 2>/dev/null || true; S=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--on--sonnet/6a805c0c-6d93-4dea-895a-29d0942edcc3/scratchpad; mkdir -p $S; .venv/bin/python -m pytest -q 2>&1 | grep '^FAILED' | sed 's/ - .*//' | sort > $S/after.txt; git stash -q; .venv/bin/python -m pytest -q 2>&1 | grep '^FAILED' | sed 's/ - .*//' | sort > $S/before.txt; git stash pop -q; wc -l $S/before.txt $S/after.txt; echo \"--- fixed:\"; comm -23 $S/before.txt $S/after.txt; echo \"--- newly broken:\"; comm -13 $S/before.txt $S/after.txt; git status --short"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_015x1wqYUK4rMZg9gXHvanzo","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01KTP2UqVwGBXJqvRvR3yFwZ","tool":"Bash","input":{"command":"for i in 1 2 3 4 5 6; do .venv/bin/python -m pytest tests/test_commands.py -q -k get_help_option_names 2>&1 | tail -1; done; echo ---; git stash -q; for i in 1 2 3 4 5 6; do .venv/bin/python -m pytest tests/test_commands.py -q -k get_help_option_names 2>&1 | tail -1; done; git stash pop -q; git status --short; grep -n \"PYTHONHASHSEED\\|randomly\\|xdist\" pyproject.toml tox.ini 2>/dev/null | head"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01KTP2UqVwGBXJqvRvR3yFwZ","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01EPFNQ4bGTzkgbBcUauXZBF","tool":"Bash","input":{"command":"S=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--on--sonnet/6a805c0c-6d93-4dea-895a-29d0942edcc3/scratchpad; run(){ PYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep '^FAILED' | sed 's/ - .*//' | sort > $1; }; run $S/after.txt; git stash -q; run $S/before.txt; git stash pop -q; wc -l $S/before.txt $S/after.txt | head -2; echo \"--- fixed:\"; comm -23 $S/before.txt $S/after.txt; echo \"--- newly broken:\"; comm -13 $S/before.txt $S/after.txt; git status --short"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01EPFNQ4bGTzkgbBcUauXZBF","text":""}]},{"role":"assistant","text":"Issue 1 is fixed: `click.echo(b\"\", file)` now writes `b\"\\n\"` to a binary file, and `test_echo_custom_file` passes.\n\n**Cause:** in `click.echo` (`src/click/utils.py`), the newline step ran `out = out or \"\"`. Empty bytes are falsy, so `b\"\"` became an empty `str`. The newline was then added as `\"\\n\"`, and writing that to a `BytesIO` raised `TypeError`.\n\n**Fix:** the `\"\"` default now applies only when the message is `None`, so empty bytes stay bytes and get `b\"\\n\"`:\n\n```python\nif nl:\n if out is None:\n out = \"\"\n\n if isinstance(out, str):\n out += \"\\n\"\n else:\n out += b\"\\n\"\n```\n\n**Regression check:** I ran the full suite with `-p no:randomly` and `PYTHONHASHSEED=0`, with and without the change. The only difference is that `test_echo_custom_file` moved from failing to passing, and nothing new failed.\n\n- **Other failures:** 85 tests still fail, in the `progressbar`, `pager` and `edit` tests and elsewhere. They failed before my change, and I'm assuming they belong to the other open issues.\n- **Flaky tests:** `tests/test_commands.py::test_get_help_option_names[...]` fails 3–5 times out of 13, even on the untouched baseline. The project uses `pytest-randomly`, so a plain run shows a different failure count each time. For before/after comparisons I'll keep using the pinned invocation above.\n\nSend issue 2 when you're ready.","toolUses":[]},{"role":"user","text":"Issue 2 of 20. Bug report.\n\n**`KeyboardInterrupt` during `click.prompt()` can race** (upstream #3802)\n\nWhen a user presses Ctrl-C during `click.prompt()`, this may cause an unhandled exception instead of a clean abort. Seen in CI on an Ubuntu 22.04 arm runner; the same test passed on x64, macOS and Windows, so it is likely a race that does not show up every time. The traceback runs through `Command.main`, `invoke` and `make_context`.\n\nFailing:\n tests/test_abort_interrupt.py::test_interrupt_while_exiting_after_success\n tests/test_abort_interrupt.py::test_interrupt_while_reporting_abort\n tests/test_abort_interrupt.py::test_interrupt_while_reporting_error","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01VJ5bcsZ5C6WB6Uhxa5qBaP","tool":"Bash","input":{"command":"cat tests/test_abort_interrupt.py; .venv/bin/python -m pytest tests/test_abort_interrupt.py -q -p no:randomly 2>&1 | tail -40"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_017TnRJ6AWMAHU48X6StbtSb","tool":"Grep","input":{"pattern":"def main\\(","path":"~/.cache/taskcut-eval/workspaces/issues-long--on--sonnet/src/click/core.py","output_mode":"content","-n":true}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01VJ5bcsZ5C6WB6Uhxa5qBaP","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_017TnRJ6AWMAHU48X6StbtSb","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01LGR1CvVSauwa7mpnu8SaNG","tool":"Read","input":{"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--on--sonnet/src/click/core.py","offset":1430,"limit":160}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01LGR1CvVSauwa7mpnu8SaNG","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01KrAfdwDYaHeNS3yJACP1zT","tool":"Bash","input":{"command":"sed -n 1,40p CHANGES.rst; grep -n \"KeyboardInterrupt\" src/click/*.py; sed -n 1,60p src/click/core.py | grep -n \"import\\|^def \\|^class \"; grep -n \"^def _detect_program_name\\|^def _expand_args\\|^def _complete_visible_commands\" src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01KrAfdwDYaHeNS3yJACP1zT","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01VVm6xgLGNFKjAvyBB2sYeD","tool":"Bash","input":{"command":"ls; sed -n 560,590p src/click/_termui_impl.py; sed -n 50,75p src/click/core.py; ls docs | head -30"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01VVm6xgLGNFKjAvyBB2sYeD","text":""}]},{"role":"assistant","text":"The pager keeps retrying `c.wait()` until it completes despite interrupts, so the project already follows this policy and I'll match it. Next I'll check the changelog format.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01UejRGHTTPxX3abVnvfVmCa","tool":"Bash","input":{"command":"sed -n 1,40p CHANGES.md"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01UejRGHTTPxX3abVnvfVmCa","text":""}]},{"role":"assistant","text":"The changelog entry for #3802 already exists, so only the code needs to change. I'll add two small helpers to `core.py` and guard each handler in `main`.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01UM31E5TPzKLrpdYeBBhL3Z","tool":"Edit","input":{"replace_all":false,"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--on--sonnet/src/click/core.py","old_string":"F = t.TypeVar(\"F\", bound=\"t.Callable[..., t.Any]\")\nV = t.TypeVar(\"V\")\n\n","new_string":"F = t.TypeVar(\"F\", bound=\"t.Callable[..., t.Any]\")\nV = t.TypeVar(\"V\")\n\n\ndef _best_effort(func: t.Callable[..., t.Any], *args: t.Any, **kwargs: t.Any) -> None:\n \"\"\"Call ``func``, dropping a ``KeyboardInterrupt`` raised by it.\n\n Used by :meth:`Command.main` to report an abort or an error in\n standalone mode. The outcome has already been decided by then, so a\n late interrupt may cost the message but must not replace the exit code.\n \"\"\"\n try:\n func(*args, **kwargs)\n except KeyboardInterrupt:\n pass\n\n\ndef _exit(code: int) -> t.NoReturn:\n \"\"\"Exit with ``code``, even if interrupted on the way out.\n\n A ``KeyboardInterrupt`` that arrives while ``SystemExit`` is being\n raised must not replace the exit code that was already collected.\n \"\"\"\n while True:\n try:\n sys.exit(code)\n except KeyboardInterrupt:\n pass\n\n"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01UM31E5TPzKLrpdYeBBhL3Z","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01U7gJo18s2PTGuLhvAHh4Md","tool":"Edit","input":{"replace_all":false,"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--on--sonnet/src/click/core.py","old_string":" except (EOFError, KeyboardInterrupt) as e:\n echo(file=sys.stderr)\n raise Abort() from e\n except ClickException as e:\n if not standalone_mode:\n raise\n e.show()\n sys.exit(e.exit_code)\n except OSError as e:\n if e.errno == errno.EPIPE:\n sys.stdout = t.cast(t.TextIO, _PacifyFlushWrapper(sys.stdout))\n sys.stderr = t.cast(t.TextIO, _PacifyFlushWrapper(sys.stderr))\n sys.exit(1)\n else:\n raise\n except Exit as e:\n if standalone_mode:\n sys.exit(e.exit_code)","new_string":" except (EOFError, KeyboardInterrupt) as e:\n if not standalone_mode:\n echo(file=sys.stderr)\n raise Abort() from e\n\n # Handled here instead of raising Abort, which would leave\n # the message and the exit unprotected from a second\n # interrupt. The exit code wins, the message is best effort.\n _best_effort(echo, file=sys.stderr)\n _best_effort(echo, _(\"Aborted!\"), file=sys.stderr)\n _exit(1)\n except ClickException as e:\n if not standalone_mode:\n raise\n _best_effort(e.show)\n _exit(e.exit_code)\n except OSError as e:\n if e.errno == errno.EPIPE:\n sys.stdout = t.cast(t.TextIO, _PacifyFlushWrapper(sys.stdout))\n sys.stderr = t.cast(t.TextIO, _PacifyFlushWrapper(sys.stderr))\n _exit(1)\n else:\n raise\n except Exit as e:\n if standalone_mode:\n _exit(e.exit_code)"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01U7gJo18s2PTGuLhvAHh4Md","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01X6keMCDAkK2M4SrYHDgNfL","tool":"Edit","input":{"replace_all":false,"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--on--sonnet/src/click/core.py","old_string":" echo(_(\"Aborted!\"), file=sys.stderr)\n sys.exit(1)\n\n def _main_shell_completion(","new_string":" _best_effort(echo, _(\"Aborted!\"), file=sys.stderr)\n _exit(1)\n\n def _main_shell_completion("}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01X6keMCDAkK2M4SrYHDgNfL","text":""}]},{"role":"assistant","text":"Now I'll run the target tests, then the pinned before/after comparison over the full suite.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_012j6QRPDHfYnZ7DVpALsmUs","tool":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_abort_interrupt.py -q -p no:randomly 2>&1 | tail -5; S=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--on--sonnet/6a805c0c-6d93-4dea-895a-29d0942edcc3/scratchpad; run(){ PYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep '^FAILED' | sed 's/ - .*//' | sort > $1; }; cp $S/after.txt $S/before.txt; run $S/after.txt; wc -l $S/before.txt $S/after.txt | head -2; echo \"--- fixed:\"; comm -23 $S/before.txt $S/after.txt; echo \"--- newly broken:\"; comm -13 $S/before.txt $S/after.txt; git status --short"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_012j6QRPDHfYnZ7DVpALsmUs","text":""}]},{"role":"assistant","text":"All 8 tests in the file pass and nothing else changed. I'll also run the type checker and linter on the edit, since I added a `NoReturn` helper.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_013NBwwn4xStVkPkYMDRCHLb","tool":"Bash","input":{"command":"ls .venv/bin | grep -E \"^(ruff|mypy|pyright)$\"; .venv/bin/ruff check src/click/core.py src/click/utils.py 2>&1 | tail -5; .venv/bin/ruff format --check src/click/core.py src/click/utils.py 2>&1 | tail -3; .venv/bin/mypy src/click/core.py 2>&1 | tail -5"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_013NBwwn4xStVkPkYMDRCHLb","text":""}]},{"role":"assistant","text":"Issue 2 is fixed: in standalone mode, a second Ctrl-C during an abort, an error report or the exit itself no longer escapes as a traceback. The 3 tests you listed now pass, and so do the 2 extra `test_interrupt_while_reporting_abort` cases (`prompt-1` and `body-1`). The whole of `tests/test_abort_interrupt.py` passes, 8 of 8.\n\n**Cause:** `Command.main()` reported and exited from inside `except` clauses, and no `try` guarded those. A second interrupt during any of these calls escaped:\n- the blank-line `echo`\n- `raise Abort() from e`\n- `e.show()`\n- the `Aborted!` echo\n- `sys.exit(...)`\n\n**Fix** (`src/click/core.py`), following the policy in the test module's docstring:\n- **Two helpers:** `_best_effort(func, ...)` swallows a `KeyboardInterrupt` from a message write. `_exit(code)` retries `sys.exit(code)` until `SystemExit` gets through, the same retry loop the pager uses around `c.wait()`.\n- **Message vs. exit code:** in standalone mode the messages are best effort and the collected exit code always wins, for aborts, errors and success alike. This applies to the `Exit`, `ClickException`, `Abort` and EPIPE paths.\n- **First interrupt:** the interrupt handler in standalone mode now writes the blank line and `Aborted!` and exits 1 directly. It no longer builds an `Abort` and re-raises it, so that step can't be interrupted either.\n- **Non-standalone mode:** unchanged. The first interrupt still reaches the caller as `Abort`, and a later one propagates, as `test_late_interrupt_with_disabled_standalone_mode` checks.\n- **`Aborted!` message:** unchanged.\n\n**Regression check:** with the pinned suite (`-p no:randomly`, `PYTHONHASHSEED=0`) compared before and after, 5 tests went from failing to passing and none newly failed. The 80 remaining failures were already failing before this change.\n\n**Not verified:** `ruff` and `mypy` aren't installed in `.venv`, so I couldn't lint or type-check. `_exit` is annotated `-> t.NoReturn` on a `while True` loop, which is a standard pattern.\n\n`CHANGES.md` already had the #3802 entry, so I left it alone.\n\nSend issue 3 when you're ready.","toolUses":[]},{"role":"user","text":"Issue 3 of 20. Bug report.\n\nAn optional `Choice` or `DateTime` argument is shown with doubled brackets in the usage synopsis.\n\nFailing:\n tests/test_basic.py::test_choice_argument_optional_metavar\n tests/test_basic.py::test_datetime_argument_optional_metavar","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_014LVRcGAQPraGkvXYQ4cS4T","tool":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_basic.py -q -p no:randomly -k \"optional_metavar\" 2>&1 | tail -40; grep -n \"optional_metavar\" -B3 -A25 tests/test_basic.py | head -100"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01GGi3oh4K9EpHxnwTZ52f7c","tool":"Grep","input":{"pattern":"def make_metavar","path":"~/.cache/taskcut-eval/workspaces/issues-long--on--sonnet/src/click","output_mode":"content","-n":true,"-A":3}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_014LVRcGAQPraGkvXYQ4cS4T","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01GGi3oh4K9EpHxnwTZ52f7c","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_016T5UCgAHBLyqPufrGA6SuD","tool":"Read","input":{"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--on--sonnet/src/click/core.py","offset":3655,"limit":40}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_016T5UCgAHBLyqPufrGA6SuD","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01GpHFRGBQyycxAk3V9wvVpn","tool":"Bash","input":{"command":"grep -n \"def get_metavar\" -B2 -A25 src/click/types.py | grep -n \"\" | head -200; grep -n \"get_metavar\" -r src/click | head -30"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01GpHFRGBQyycxAk3V9wvVpn","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01XEiwtaE4mZQCkzjQCPmqd7","tool":"Read","input":{"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--on--sonnet/src/click/core.py","offset":2395,"limit":30}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01XEiwtaE4mZQCkzjQCPmqd7","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01HtGnfPnE2dj2uqoR2k2UYs","tool":"Bash","input":{"command":"grep -rn \"deprecated\" tests/*.py | grep -i \"argument\\|metavar\\|\\]!\" | head -20; grep -rn '\\]!' tests/ | head; grep -rn \"make_metavar\\|get_metavar\" tests docs | head -20"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01HtGnfPnE2dj2uqoR2k2UYs","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_015xr4sCQjHVKeCFZchGTCTy","tool":"Bash","input":{"command":"sed -n 335,392p tests/test_arguments.py; sed -n 300,345p tests/test_formatting.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_015xr4sCQjHVKeCFZchGTCTy","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_0167Tf7fcdDbbinPh2GTkpy3","tool":"Edit","input":{"replace_all":false,"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--on--sonnet/src/click/core.py","old_string":" if not var:\n var = self.name.upper()\n if self.deprecated:\n var += \"!\"\n if not self.required:\n var = f\"[{var}]\"","new_string":" if not var:\n var = self.name.upper()\n\n # Some types, such as Choice and DateTime, already wrap their metavar\n # in square brackets. Reuse them instead of adding a second pair.\n bracketed = var.startswith(\"[\") and var.endswith(\"]\")\n\n if self.deprecated:\n var += \"!\"\n if not self.required and not bracketed:\n var = f\"[{var}]\""}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_0167Tf7fcdDbbinPh2GTkpy3","text":""}]},{"role":"assistant","text":"Checking the fix now: running the two target tests, then the deprecated `Choice` case and the full suite comparison.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_015Cpm29aEsZzdEkJPv3S7Yo","tool":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_basic.py tests/test_arguments.py tests/test_formatting.py -q -p no:randomly 2>&1 | tail -6; .venv/bin/python - <<'EOF'\nimport click\nfrom click.testing import CliRunner\n\ndef usage(*decorators):\n @click.command()\n def cli(**kw): pass\n for d in decorators:\n cli = d(cli)\n return CliRunner().invoke(cli, [\"--help\"]).output.splitlines()[0]\n\nch = click.Choice([\"foo\", \"bar\"])\nprint(usage(click.argument(\"m\", type=ch, required=False, deprecated=True)))\nprint(usage(click.argument(\"m\", type=ch, nargs=-1)))\nprint(usage(click.argument(\"m\", type=ch)))\nprint(usage(click.argument(\"m\", type=ch, required=False, metavar=\"X\")))\nEOF\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--on--sonnet/6a805c0c-6d93-4dea-895a-29d0942edcc3/scratchpad; run(){ PYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep '^FAILED' | sed 's/ - .*//' | sort > $1; }; cp $S/after.txt $S/before.txt; run $S/after.txt; wc -l $S/before.txt $S/after.txt | head -2; echo \"--- fixed:\"; comm -23 $S/before.txt $S/after.txt; echo \"--- newly broken:\"; comm -13 $S/before.txt $S/after.txt"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_015Cpm29aEsZzdEkJPv3S7Yo","text":""}]},{"role":"assistant","text":"Issue 3 is fixed: an optional `Choice` or `DateTime` argument now shows a single pair of brackets in the usage line. Both `test_choice_argument_optional_metavar` and `test_datetime_argument_optional_metavar` pass.\n\n**Cause:** `Choice.get_metavar` and `DateTime.get_metavar` already wrap their metavar in `[...]`. `Argument.make_metavar` (`src/click/core.py`) then wrapped it again for any argument that isn't required, giving `[[foo|bar|baz]]`.\n\n**Fix:** `Argument.make_metavar` now checks whether the type's metavar already starts with `[` and ends with `]`, and skips its own wrap if so. That check runs before the deprecated `!` is appended. Otherwise `[foo|bar]!` would no longer look bracketed and a deprecated optional `Choice` argument would still show `[[foo|bar]!]`.\n\nResulting usage lines:\n\n| Argument | Usage line |\n|---|---|\n| `Choice`, `nargs=-1` | `[foo\\|bar\\|baz]...` |\n| `Choice`, `required=False` | `[foo\\|bar\\|baz]` |\n| `DateTime`, `required=False` | `[%Y-%m-%d]` |\n| `Choice`, required | `{foo\\|bar}` (unchanged) |\n| Optional, explicit `metavar=\"X\"` | `X` (unchanged) |\n| Ordinary optional argument, deprecated | `[F!]` (unchanged) |\n\n**Regression check:** the pinned full-suite comparison shows exactly those two tests going from failing to passing, and none newly failing. 78 tests still fail, as before this change.\n\n**Choices I made:**\n- **Deprecated `Choice` argument:** it now renders as `[foo|bar]!`, with the marker after the closing bracket. No test covers this case. I chose that because `[foo|bar!]` would read as if only `bar` were deprecated.\n- **Required `DateTime` argument:** it still renders as `[%Y-%m-%d]` (its own brackets, no `{}`), which suggests it's optional. That was already the case and the tests don't ask about it, so I left it alone.\n\nSend issue 4 when you're ready.","toolUses":[]},{"role":"user","text":"Issue 4 of 20. Feature request.\n\n**Support pathlib.Path in edit filename** (upstream #2869)\n\n`click.edit(filename=some_path)` with a `pathlib.Path` is rejected by the type checker -- `filename` is typed `str | None` -- and the workaround is `click.edit(filename=str(path))`. It would be nice not to need the `str`. It should actually work at runtime too, not only type-check.\n\nFailing:\n tests/test_termui.py::test_edit_pathlib","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01VQp1m9KSCBqQHUhVwshUPu","tool":"Bash","input":{"command":"grep -n \"test_edit_pathlib\" -B6 -A40 tests/test_termui.py; .venv/bin/python -m pytest tests/test_termui.py -q -p no:randomly -k test_edit_pathlib 2>&1 | tail -40"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_012m8E4LVfZT7QbDF11K2nhz","tool":"Bash","input":{"command":"grep -n \"def edit\" -A70 src/click/termui.py | head -130; grep -n \"class Editor\" -A130 src/click/_termui_impl.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01VQp1m9KSCBqQHUhVwshUPu","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_012m8E4LVfZT7QbDF11K2nhz","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01BD1nLAjCFjdYXAtnEZXweE","tool":"Bash","input":{"command":"sed -n 1,30p src/click/termui.py; grep -n \"2869\" CHANGES.md docs/*.md; grep -n \"versionchanged:: 8.5\" src/click/*.py | head; grep -n \"^import\\|^from\" src/click/_termui_impl.py | head -30"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01BD1nLAjCFjdYXAtnEZXweE","text":""}]},{"role":"assistant","text":"`termui.py` doesn't import `os`, so I'll add it. I'll look at the existing #2869 changelog entry from an earlier release for context.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01PQRPWokGgk4sb9Z6kvoXcT","tool":"Bash","input":{"command":"sed -n 103,108p CHANGES.md; grep -n \"os\\.\\|import os\" src/click/termui.py | head"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01PQRPWokGgk4sb9Z6kvoXcT","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01VRRVqpjQCnDZBMYbz5iQsf","tool":"Bash","input":{"command":"grep -n \"^## Version\" CHANGES.md | head -4"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01VRRVqpjQCnDZBMYbz5iQsf","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_017u2eH4m6kj6CDqAHAiwfVW","tool":"Bash","input":{"command":"python3 - <<'EOF'\nimport re\np = \"src/click/termui.py\"\ns = open(p).read()\n\ns = s.replace(\"import itertools\\nimport re\\n\", \"import itertools\\nimport os\\nimport re\\n\", 1)\n\nold_ov = \" filename: str | cabc.Iterable[str] | None = None,\\n) -> None: ...\"\nnew_ov = \" filename: _PathLikeOrStr | cabc.Iterable[_PathLikeOrStr] | None = None,\\n) -> None: ...\"\nassert old_ov in s\ns = s.replace(old_ov, new_ov, 1)\n\nold_impl = \" filename: str | cabc.Iterable[str] | None = None,\\n) -> str | bytes | bytearray | None:\"\nnew_impl = \" filename: _PathLikeOrStr | cabc.Iterable[_PathLikeOrStr] | None = None,\\n) -> str | bytes | bytearray | None:\"\nassert old_impl in s\ns = s.replace(old_impl, new_impl, 1)\n\nold_doc = \"\"\" .. versionchanged:: 8.2.0\n ``filename`` now accepts any ``Iterable[str]`` in addition to a ``str``\n if the ``editor`` supports editing multiple files at once.\n\"\"\"\nnew_doc = \"\"\" .. versionchanged:: 8.5.0\n ``filename`` accepts :class:`os.PathLike` values, alone or in an\n iterable, in addition to strings.\n\n .. versionchanged:: 8.2.0\n ``filename`` now accepts any ``Iterable[str]`` in addition to a ``str``\n if the ``editor`` supports editing multiple files at once.\n\"\"\"\nassert old_doc in s\ns = s.replace(old_doc, new_doc, 1)\n\nold_body = \" if isinstance(filename, str):\\n filename = (filename,)\\n\\n ed.edit_files(filenames=filename)\"\nnew_body = \" if isinstance(filename, (str, os.PathLike)):\\n filename = (filename,)\\n\\n ed.edit_files(filenames=filename)\"\nassert old_body in s\ns = s.replace(old_body, new_body, 1)\nopen(p, \"w\").write(s)\n\np = \"src/click/_termui_impl.py\"\ns = open(p).read()\nold = \" def edit_files(self, filenames: cabc.Iterable[str]) -> None:\"\nnew = \" def edit_files(self, filenames: cabc.Iterable[str | os.PathLike[str]]) -> None:\"\nassert old in s\ns = s.replace(old, new, 1)\nold = \" args=shlex.split(editor) + list(filenames),\"\nnew = \" args=shlex.split(editor) + [os.fspath(f) for f in filenames],\"\nassert old in s\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\nsed -n 26,60p src/click/termui.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_017u2eH4m6kj6CDqAHAiwfVW","text":""}]},{"role":"assistant","text":"I referenced a `_PathLikeOrStr` alias that isn't defined yet. I'll check what the codebase already uses for path-like types and what Python versions it supports before adding one.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01NWyN2nEdJ39Yw8ciZcvRVw","tool":"Bash","input":{"command":"grep -n \"requires-python\\|line-length\\|E501\" pyproject.toml; grep -rn \"PathLike\" src/click/*.py | head -20"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01NWyN2nEdJ39Yw8ciZcvRVw","text":""}]},{"role":"assistant","text":"The codebase writes `str | os.PathLike[str]` inline everywhere, but in these signatures the full annotation gets unwieldy. I'll define the alias in `termui.py` and use it in the two signatures.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01MUXzFJHxZnFUhD6Q9JsVKg","tool":"Edit","input":{"replace_all":false,"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--on--sonnet/src/click/termui.py","old_string":"V = t.TypeVar(\"V\")\nC = t.TypeVar(\"C\")\n","new_string":"V = t.TypeVar(\"V\")\nC = t.TypeVar(\"C\")\n\n_PathLikeOrStr = str | os.PathLike[str]\n"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01MUXzFJHxZnFUhD6Q9JsVKg","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01TkheFPy56qPgwCLFZbBEh7","tool":"Bash","input":{"command":"git diff src/click/termui.py src/click/_termui_impl.py; .venv/bin/python -m pytest tests/test_termui.py -q -p no:randomly -k \"edit\" 2>&1 | tail -6; S=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--on--sonnet/6a805c0c-6d93-4dea-895a-29d0942edcc3/scratchpad; run(){ PYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep '^FAILED' | sed 's/ - .*//' | sort > $1; }; cp $S/after.txt $S/before.txt; run $S/after.txt; wc -l $S/before.txt $S/after.txt | head -2; echo \"--- fixed:\"; comm -23 $S/before.txt $S/after.txt; echo \"--- newly broken:\"; comm -13 $S/before.txt $S/after.txt"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01TkheFPy56qPgwCLFZbBEh7","text":""}]},{"role":"assistant","text":"Issue 4 is fixed: `click.edit(filename=Path(...))` now works at runtime and type-checks. `test_edit_pathlib[single]` passes.\n\n**Cause:** `edit()` only wrapped a `str` into a one-item tuple. A bare `Path` reached `Editor.edit_files`, which called `list(filenames)` on it and raised `TypeError: 'PosixPath' object is not iterable`. The `[path]` variant of the test already passed. It was only the single-`Path` case that broke, plus the `str`-only annotation the issue mentions.\n\n**Fix:**\n- **`edit()`** (`src/click/termui.py`): the single-file check is now `isinstance(filename, (str, os.PathLike))`. The `filename` annotation, on the overload and the implementation, is now `str | os.PathLike[str]` or an iterable of those. I put that behind a private alias, `_PathLikeOrStr`, so the signatures stay readable.\n- **`Editor.edit_files`** (`src/click/_termui_impl.py`): filenames now go through `os.fspath()` when the editor command is built. Path objects were already accepted by `Popen` on POSIX, but the explicit conversion means the command line only ever contains plain strings, on Windows too.\n- **Docstring:** added `.. versionchanged:: 8.5.0`, because `CHANGES.md` already lists this feature under 8.5.0 ({issue}`2869`, {pr}`3781`). I didn't add a new changelog entry.\n\n**Regression check:** with the pinned suite, `test_edit_pathlib[single]` went from failing to passing and nothing new failed. 77 tests still fail, unchanged from before this issue.\n\nI still couldn't run `mypy` or `ruff`, since neither is installed in `.venv`.\n\nSend issue 5 when you're ready.","toolUses":[]},{"role":"user","text":"Issue 5 of 20. Bug report.\n\n**help not resolving automatically** (upstream #2819)\n\nThe docs say the help parameter performs automatic conflict resolution: if a command itself implements a parameter with the same name, the default help parameter stops accepting it. That does not happen when a command has an argument or option named `help` -- parsing goes wrong. Click should also warn when an argument's name collides with another parameter.\n\nFailing:\n tests/test_basic.py::test_param_named_help\n tests/test_basic.py::test_param_squatting_help_option_name\n tests/test_info_dict.py::test_command\n tests/test_info_dict.py::test_context\n tests/test_options.py::test_argument_sharing_param_name_warning","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01MvvPu2rZsszx9K9PXiW3hm","tool":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_basic.py tests/test_info_dict.py tests/test_options.py -q -p no:randomly -k \"test_param_named_help or test_param_squatting_help_option_name or test_command or test_context or test_argument_sharing_param_name_warning\" 2>&1 | grep -v \"^$\" | head -150"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01DENA6y6tuLuRnm9gU8ZoJH","tool":"Bash","input":{"command":"grep -n \"def test_param_named_help\" -B3 -A45 tests/test_basic.py; grep -n \"def test_argument_sharing_param_name_warning\" -B5 -A45 tests/test_options.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01MvvPu2rZsszx9K9PXiW3hm","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01DENA6y6tuLuRnm9gU8ZoJH","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01DJCD4zYE4EG9iJAYUWnMNW","tool":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_info_dict.py -q -p no:randomly -k \"test_command or test_context\" 2>&1 | grep -E \"^E|Error|def test|^tests\" | head -60; sed -n 90,140p tests/test_basic.py; git diff HEAD --stat"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_017hRgJZwcML6VD62yYPKmy6","tool":"Bash","input":{"command":"grep -n \"def get_help_option\\b\" -B3 -A45 src/click/core.py; grep -n \"def get_params\\|def get_help_option_names\\|_help_option\\|help_option\" src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01DJCD4zYE4EG9iJAYUWnMNW","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_017hRgJZwcML6VD62yYPKmy6","text":""}]},{"role":"assistant","text":"I'll read `help_option` in the decorators, the existing \"used more than once\" warning, and what the info-dict tests expect.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_0112YYX7rtZBuBukjSY6WtxB","tool":"Bash","input":{"command":"grep -n \"def help_option\" -A45 src/click/decorators.py; sed -n 1120,1176p src/click/core.py; grep -n \"used more than once\" -B30 -A15 src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_0112YYX7rtZBuBukjSY6WtxB","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01FKEbRU6equXJu2gcmABaEm","tool":"Bash","input":{"command":"grep -n \"_click_default_help\" -r tests src docs CHANGES.md | grep -v pyc"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01FKEbRU6equXJu2gcmABaEm","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_016soouQyZW4hQv5JaHwSjM1","tool":"Bash","input":{"command":"sed -n 35,55p CHANGES.md; sed -n 1,60p tests/test_info_dict.py; git stash list"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_016soouQyZW4hQv5JaHwSjM1","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_013JJNSP7Gx4CTjpTuBJPtc1","tool":"Bash","input":{"command":"grep -n '\"help\"' src/click/*.py | head -20; grep -n \"def _parse_decls\" -A45 src/click/core.py | sed -n 1,140p | grep -n \"isidentifier\" ; grep -n \"filterwarnings\" -A4 pyproject.toml"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_013JJNSP7Gx4CTjpTuBJPtc1","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01X5vBbt5ctyxuEttoEDZTbQ","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/core.py\"\ns = open(p).read()\n\nold = '''F = t.TypeVar(\"F\", bound=\"t.Callable[..., t.Any]\")\nV = t.TypeVar(\"V\")\n'''\nnew = '''F = t.TypeVar(\"F\", bound=\"t.Callable[..., t.Any]\")\nV = t.TypeVar(\"V\")\n\n# The name the automatic help option stores its value under. It is reserved so\n# that a user parameter named ``help`` (or any custom help flag) never clashes\n# with it.\n_HELP_OPTION_NAME = \"_click_default_help\"\n'''\nassert old in s\ns = s.replace(old, new, 1)\n\nold = ''' opts = [opt for param in params for opt in param.opts]\n opts_counter = Counter(opts)\n duplicate_opts = (opt for opt, count in opts_counter.items() if count > 1)\n\n for duplicate_opt in duplicate_opts:\n warnings.warn(\n (\n f\"The parameter {duplicate_opt} is used more than once. \"\n \"Remove its duplicate as parameters should be unique.\"\n ),\n stacklevel=3,\n )\n\n return params\n'''\nnew = ''' opts = [opt for param in params for opt in param.opts]\n opts_counter = Counter(opts)\n duplicate_opts = (opt for opt, count in opts_counter.items() if count > 1)\n\n for duplicate_opt in duplicate_opts:\n warnings.warn(\n (\n f\"The parameter {duplicate_opt} is used more than once. \"\n \"Remove its duplicate as parameters should be unique.\"\n ),\n stacklevel=3,\n )\n\n # Parameters sharing a name overwrite each other's value. Options\n # may do so on purpose to compete for it, like feature switches.\n # Anything else, including the name reserved for the help option,\n # is a mistake worth flagging.\n by_name: dict[str, list[Parameter]] = {}\n\n for param in params:\n if param.name:\n by_name.setdefault(param.name, []).append(param)\n\n for name, sharing in by_name.items():\n if len(sharing) < 2:\n continue\n\n if name == _HELP_OPTION_NAME:\n warnings.warn(\n (\n f\"The parameter name '{name}' is reserved for the\"\n \" automatic help option. Rename the parameter.\"\n ),\n stacklevel=3,\n )\n elif any(isinstance(param, Argument) for param in sharing):\n warnings.warn(\n (\n f\"The parameter name '{name}' is used by an argument\"\n \" and another parameter, which overwrite each\"\n \" other's value. Give each parameter a unique name.\"\n ),\n stacklevel=3,\n )\n\n return params\n'''\nassert old in s\ns = s.replace(old, new, 1)\n\nold = ''' help_option(*help_option_names)(self)\n self._help_option = self.params.pop()'''\nnew = ''' help_option(*help_option_names, _HELP_OPTION_NAME)(self)\n self._help_option = self.params.pop()'''\nassert old in s\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\n.venv/bin/python -m pytest tests/test_basic.py tests/test_info_dict.py tests/test_options.py -q -p no:randomly -k \"test_param_named_help or test_param_squatting_help_option_name or test_command or test_context or test_argument_sharing_param_name_warning\" 2>&1 | tail -30"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01X5vBbt5ctyxuEttoEDZTbQ","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01DSBmyXHTjXsnhot25U5UZX","tool":"Bash","input":{"command":"S=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--on--sonnet/6a805c0c-6d93-4dea-895a-29d0942edcc3/scratchpad; run(){ PYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep '^FAILED' | sed 's/ - .*//' | sort > $1; }; cp $S/after.txt $S/before.txt; run $S/after.txt; wc -l $S/before.txt $S/after.txt | head -2; echo \"--- fixed:\"; comm -23 $S/before.txt $S/after.txt; echo \"--- newly broken:\"; comm -13 $S/before.txt $S/after.txt"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01DSBmyXHTjXsnhot25U5UZX","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01TqoqJHR47g37kg124aazd1","tool":"Bash","input":{"command":".venv/bin/python -W error - <<'EOF'\nimport click\nfrom click.testing import CliRunner\n\n@click.command()\n@click.argument(\"help\")\n@click.option(\"--verbose\", is_flag=True)\ndef cli(help, verbose):\n click.echo(f\"help={help} verbose={verbose}\")\n\nr = CliRunner()\nprint(repr(r.invoke(cli, [\"x\", \"--verbose\"]).output))\nprint(r.invoke(cli, [\"--help\"]).output)\nEOF\ngrep -rn -i \"conflict resolution\\|help_option_names\" docs/*.md | head"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01TqoqJHR47g37kg124aazd1","text":""}]},{"role":"assistant","text":"Issue 5 is fixed: a command with an argument or option named `help` now parses correctly, and `--help` still shows the help screen. All 5 target tests pass. That is 11 cases, counting the parametrized ones.\n\nI also ran the report's scenario by hand with `-W error`. `click.argument(\"help\")` receives its value, and `--help` still prints usage.\n\n**Cause:** the automatic help option stored its value under the name `help`. A user parameter named `help`, or one named after a custom help flag such as `man` for `--man`, collided with it and broke parsing. Nothing warned about that, or about other parameters that overwrite each other's value.\n\n**Fix** (`src/click/core.py`):\n- **Reserved name:** `get_help_option` now builds the help option with the name `_click_default_help` (a module constant, `_HELP_OPTION_NAME`), so user parameters can no longer clash with it. The name also shows up in `to_info_dict()` output, which is what `test_command` and `test_context` expect.\n- **Collision warnings** in `Command.get_params`, next to the existing \"used more than once\" check (same `__debug__` guard):\n - **Reserved name:** a parameter claiming `_click_default_help` triggers \"reserved for the automatic help option\".\n - **Shared name:** an argument sharing its name with any other parameter triggers \"'target' is used by an argument …\".\n - **Options only:** options sharing a name with each other stay silent, since feature switches like `--upper` and `--lower` do that on purpose.\n- **One warning per name:** the reserved-name case gets only its own warning, not the argument one as well. `pytest.warns` re-emits warnings that don't match its pattern, and warnings are errors in this suite, so a second warning would fail the test.\n\n**Regression check:** with the pinned suite, 10 cases went from failing to passing and none newly failed. 67 tests still fail, down from 77.\n\n- **Changelog and docs:** `CHANGES.md` and `docs/documentation.md` already describe this behavior, so I didn't touch either.\n- **Explicit `@click.help_option()`:** the public decorator still stores under `help` by default, because I only changed the automatic help option. A command that combines an explicit `@click.help_option()` with a parameter named `help` can still collide. I left it alone because the report and the tests are about the automatic help option.\n\nSend issue 6 when you're ready.","toolUses":[]},{"role":"user","text":"Issue 6 of 20. Bug report.\n\nThe shell completion source scripts come out with platform line endings. They have to use LF everywhere, or the shells reject them.\n\nFailing:\n tests/test_shell_completion.py::test_source_uses_lf_line_endings","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01GjdpzsgdfxPMPf111XaCD5","tool":"Bash","input":{"command":"grep -n \"def test_source_uses_lf_line_endings\" -B8 -A40 tests/test_shell_completion.py; .venv/bin/python -m pytest tests/test_shell_completion.py -q -p no:randomly -k test_source_uses_lf_line_endings 2>&1 | tail -30"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01TGoyDRuqiZtuwiVdeUJj9m","tool":"Bash","input":{"command":"grep -n \"def shell_complete\" -A45 src/click/shell_completion.py; grep -n \"def echo\\b\" src/click/utils.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01GjdpzsgdfxPMPf111XaCD5","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01TGoyDRuqiZtuwiVdeUJj9m","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01NRzaUQrWACXvt23UxPdX67","tool":"Bash","input":{"command":"grep -n \"def source\\b\\|def complete\\b\\|def _check_version\\|_SOURCE_\\|def get_completion_args\\|def format_completion\\|class .*Complete\" src/click/shell_completion.py; grep -n \"def _find_binary_writer\" -A40 src/click/_compat.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01NRzaUQrWACXvt23UxPdX67","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01AaFV2UvuPXDtg3kaW728g4","tool":"Bash","input":{"command":"sed -n 205,290p src/click/shell_completion.py; sed -n 330,390p src/click/shell_completion.py; sed -n 520,560p src/click/shell_completion.py; grep -n \"_is_binary_writer\" -B2 -A22 src/click/_compat.py | sed -n 1,50p"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01AaFV2UvuPXDtg3kaW728g4","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_019QSVJ32SC9Au5EKuaySdzy","tool":"Bash","input":{"command":"sed -n 1,18p src/click/shell_completion.py; grep -n \"_default_text_stdout\\|_find_binary_writer\" src/click/utils.py | head; grep -rn \"shell_complete(\" src/click/*.py | grep -v \"def \\|obj.shell\" | head; grep -n \"shell_complete\\b\" tests/*.py | grep -v \"def \\|\\.shell_complete(ctx\" | head"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_019QSVJ32SC9Au5EKuaySdzy","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01W7UuEShtWVU3bWAwMqLfXA","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/shell_completion.py\"\ns = open(p).read()\n\nold = '''from .core import Argument\nfrom .core import Command\nfrom .core import Context\nfrom .core import Group\nfrom .core import Option\nfrom .core import Parameter\nfrom .core import ParameterSource\nfrom .utils import echo\n\n'''\nnew = '''from . import utils\nfrom ._compat import _find_binary_writer\nfrom .core import Argument\nfrom .core import Command\nfrom .core import Context\nfrom .core import Group\nfrom .core import Option\nfrom .core import Parameter\nfrom .core import ParameterSource\nfrom .utils import echo\n\n'''\nassert old in s\ns = s.replace(old, new, 1)\n\nold = '''def shell_complete(\n cli: Command,'''\nnew = '''def _echo_lf(text: str) -> None:\n \"\"\"Write ``text`` and a newline to stdout, ending every line in ``\\\\\\\\n``.\n\n A text stream translates ``\\\\\\\\n`` to the platform's line ending, which makes\n it ``\\\\\\\\r\\\\\\\\n`` on Windows, and shells reject a script written that way. Write\n the encoded text to the binary stream beneath it instead, when there is\n one, so the lines end exactly as they are in ``text``.\n \"\"\"\n # Resolve the stream the same way ``echo`` does when given no file.\n file = utils._default_text_stdout()\n\n if file is not None and _find_binary_writer(file) is not None:\n # ``echo`` writes bytes to the binary stream directly, skipping the\n # newline translation of the text layer. Encode them as that layer would.\n encoding = getattr(file, \"encoding\", None) or \"utf-8\"\n errors = getattr(file, \"errors\", None) or \"strict\"\n echo(text.encode(encoding, errors), file=file)\n else:\n echo(text, file=file)\n\n\ndef shell_complete(\n cli: Command,'''\nassert old in s\ns = s.replace(old, new, 1)\n\nold = ''' if instruction == \"source\":\n echo(comp.source())\n return 0\n'''\nnew = ''' if instruction == \"source\":\n _echo_lf(comp.source())\n return 0\n'''\nassert old in s\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\nsed -n 19,45p src/click/shell_completion.py; .venv/bin/python -c \"import click.shell_completion\""}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01W7UuEShtWVU3bWAwMqLfXA","text":""}]},{"role":"assistant","text":"The helper is in and imports cleanly. Next is the target test, the fallback for a stdout with no binary buffer, and the pinned full-suite comparison.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_019UB8Xpf7zfBJT8CDU538F3","tool":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_shell_completion.py -q -p no:randomly 2>&1 | tail -4; .venv/bin/python -W error - <<'EOF'\nimport io, sys\nfrom unittest import mock\nfrom click import Group, Command\nfrom click.shell_completion import shell_complete\n\ncli = Group(\"cli\", commands=[Command(\"a\")])\n\n# 1. no binary buffer: falls back to the text path\nbuf = io.StringIO()\nwith mock.patch.object(sys, \"stdout\", buf):\n assert shell_complete(cli, {}, \"cli\", \"_CLI_COMPLETE\", \"bash_source\") == 0\nprint(\"StringIO fallback ok:\", buf.getvalue().startswith(\"_cli_completion()\"), repr(buf.getvalue()[-12:]))\n\n# 2. non-ASCII prog name keeps the stream's encoding\nraw = io.BytesIO()\nst = io.TextIOWrapper(raw, encoding=\"latin-1\", newline=\"\\r\\n\")\nwith mock.patch(\"click.utils._default_text_stdout\", lambda: st):\n shell_complete(cli, {}, \"café\", \"_CAFE_COMPLETE\", \"fish_source\")\nst.flush()\ndata = raw.getvalue()\nprint(\"latin-1 bytes kept:\", b\"caf\\xe9\" in data, \"| CRLF present:\", b\"\\r\\n\" in data)\n\n# 3. no stdout at all (pythonw)\nwith mock.patch(\"click.utils._default_text_stdout\", lambda: None):\n print(\"stdout None ->\", shell_complete(cli, {}, \"cli\", \"_CLI_COMPLETE\", \"bash_source\"))\nEOF\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--on--sonnet/6a805c0c-6d93-4dea-895a-29d0942edcc3/scratchpad; run(){ PYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep '^FAILED' | sed 's/ - .*//' | sort > $1; }; cp $S/after.txt $S/before.txt; run $S/after.txt; wc -l $S/before.txt $S/after.txt | head -2; echo \"--- fixed:\"; comm -23 $S/before.txt $S/after.txt; echo \"--- newly broken:\"; comm -13 $S/before.txt $S/after.txt"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_019UB8Xpf7zfBJT8CDU538F3","text":""}]},{"role":"assistant","text":"Issue 6 is fixed: `click` now writes the completion source script with LF line endings on every platform. `test_source_uses_lf_line_endings` passes, and so does the rest of `tests/test_shell_completion.py` (58 of 58).\n\n**Cause:** `shell_complete` sent the script through `echo()` as `str`. A text stream translates `\\n` to the platform's line ending, so on Windows every line came out as `\\r\\n`. The test reproduces that with a `TextIOWrapper(newline=\"\\r\\n\")`.\n\n**Fix** (`src/click/shell_completion.py`): a small helper, `_echo_lf`, now handles the `source` instruction. It looks up stdout the way `echo` does, and if there is a binary stream underneath it, it encodes the script and hands the bytes to `echo`. `echo` writes bytes straight to that binary stream, so the newline translation never happens. It encodes with the stream's own `encoding` and `errors`, so the bytes are the same ones the text layer would have produced, minus the translation. That matters for a non-ASCII program name in a non-UTF-8 locale, and for the Windows console writer, which expects UTF-16.\n\n**Checked beyond the test:**\n- **No binary buffer:** with `sys.stdout` replaced by a `StringIO` (no binary stream underneath), it falls back to the old text path and still works.\n- **Latin-1 stream:** a Latin-1 stream with `newline=\"\\r\\n\"` gets `caf\\xe9` intact and no `\\r\\n`.\n- **No stdout:** with stdout `None` (pythonw), it still returns 0.\n\n**Regression check:** with the pinned suite, that one test went from failing to passing and none newly failed. 66 tests still fail, down from 67.\n\n**Left alone:** I limited this to the `source` instruction, as the report describes. The `complete` output goes through the same text stream, so it has the same CRLF exposure on Windows, but it carries user-supplied help text. The bytes path also skips `echo`'s ANSI stripping, so switching it could change what shells receive for help strings containing escape codes. Say so if you want `complete` covered too. It would need the ANSI stripping handled alongside.\n\n**Unrelated output:** my manual runs printed \"Shell completion is not supported for Bash versions older than 4.4.\" That comes from this Mac's system bash 3.2 and existing version-check code, not from this change.\n\nSend issue 7 when you're ready.","toolUses":[]},{"role":"user","text":"Issue 7 of 20. Feature request.\n\nFeature request: a `custom_version_option` decorator, exported from `click`, for building a version option with custom behaviour -- so that `version_option` itself can stay as it is. The failing tests show the expected interface.\n\nFailing:\n tests/test_basic.py::test_custom_version_option\n tests/test_basic.py::test_custom_version_option_receives_context","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01QSqko6sAehcxXbPqhLoRjD","tool":"Bash","input":{"command":"grep -n \"custom_version_option\" -r tests src docs CHANGES.md | grep -v pyc; grep -n \"def test_custom_version_option\" -B12 -A60 tests/test_basic.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01QSqko6sAehcxXbPqhLoRjD","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_017WGWuZNgNcvB9344VH4Ye7","tool":"Bash","input":{"command":"grep -n \"def version_option\" -B5 -A140 src/click/decorators.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_017WGWuZNgNcvB9344VH4Ye7","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01V2F4g4Q8x92FqUQKPgsaSD","tool":"Bash","input":{"command":"sed -n 60,120p docs/option-decorators.md; sed -n 35,55p docs/api.md; grep -n \"version_option\\|help_option\" src/click/__init__.py; sed -n 1,40p src/click/decorators.py; grep -n \"__all__\" src/click/decorators.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01V2F4g4Q8x92FqUQKPgsaSD","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Mw1L4fZzt6gPnB8b5jGyuX","tool":"Bash","input":{"command":"sed -n 12,35p src/click/__init__.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Mw1L4fZzt6gPnB8b5jGyuX","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01CZuAiMvzNZCWEgRD1URXcU","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/__init__.py\"\ns = open(p).read()\nold = \"from .decorators import confirmation_option as confirmation_option\\n\"\nnew = old + \"from .decorators import custom_version_option as custom_version_option\\n\"\nassert old in s\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\n\np = \"src/click/decorators.py\"\ns = open(p).read()\nold = \"def help_option(*param_decls: str, **kwargs: t.Any) -> t.Callable[[FC], FC]:\"\nnew = '''def custom_version_option(\n get_message: t.Callable[[Context], str],\n *param_decls: str,\n **kwargs: t.Any,\n) -> t.Callable[[FC], FC]:\n \"\"\"Add a ``--version`` option which immediately prints a message\n produced by a function and exits the program.\n\n Unlike :func:`version_option`, Click does not detect or format\n anything. The function is called with the current context and returns\n the text to show, so it can include any value, such as the Python\n version or git metadata.\n\n .. code-block:: python\n\n @click.command()\n @click.custom_version_option(\n lambda ctx: f\"{ctx.find_root().info_name} 1.0, Python {sys.version}\"\n )\n def cli():\n ...\n\n :param get_message: Called with the current\n :class:`Context`, returns the message to show.\n :param param_decls: One or more option names. Defaults to the single\n value ``\"--version\"``.\n :param kwargs: Extra arguments are passed to :func:`option`.\n\n .. versionadded:: 8.5.0\n \"\"\"\n\n def callback(ctx: Context, param: Parameter, value: bool) -> None:\n if not value or ctx.resilient_parsing:\n return\n\n echo(get_message(ctx), color=ctx.color)\n ctx.exit()\n\n if not param_decls:\n param_decls = (\"--version\",)\n\n kwargs.setdefault(\"is_flag\", True)\n kwargs.setdefault(\"expose_value\", False)\n kwargs.setdefault(\"is_eager\", True)\n kwargs.setdefault(\"help\", _(\"Show the version and exit.\"))\n kwargs[\"callback\"] = callback\n return option(*param_decls, **kwargs)\n\n\ndef help_option(*param_decls: str, **kwargs: t.Any) -> t.Callable[[FC], FC]:'''\nassert old in s\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\n.venv/bin/python -m pytest tests/test_basic.py -q -p no:randomly -k \"version_option\" 2>&1 | tail -4"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01CZuAiMvzNZCWEgRD1URXcU","text":""}]},{"role":"assistant","text":"That notice is most likely my own edit, since I wrote the file through a script rather than `Edit`. I'll confirm `custom_version_option` is in the file, then run the full comparison.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Kn8N8d2BmiHk8TaMD1dnQR","tool":"Bash","input":{"command":"grep -n \"def custom_version_option\\|custom_version_option\" src/click/decorators.py src/click/__init__.py; git diff --stat; S=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--on--sonnet/6a805c0c-6d93-4dea-895a-29d0942edcc3/scratchpad; run(){ PYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep '^FAILED' | sed 's/ - .*//' | sort > $1; }; cp $S/after.txt $S/before.txt; run $S/after.txt; wc -l $S/before.txt $S/after.txt | head -2; echo \"--- fixed:\"; comm -23 $S/before.txt $S/after.txt; echo \"--- newly broken:\"; comm -13 $S/before.txt $S/after.txt"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Kn8N8d2BmiHk8TaMD1dnQR","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_019FtVvxXZRBHDy8X9EbiNk8","tool":"Bash","input":{"command":".venv/bin/python -W error - <<'EOF'\nimport click\nfrom click.testing import CliRunner\n\n@click.command()\n@click.custom_version_option(lambda ctx: \"from get_message\", callback=lambda c, p, v: print(\"user callback\"))\ndef cli(): pass\n\nr = CliRunner().invoke(cli, [\"--version\"])\nprint(repr(r.output), r.exit_code)\n\n@click.command()\n@click.custom_version_option(lambda ctx: \"v1\", \"-V\", \"--ver\", help=\"Print it\")\ndef cli2(): pass\nprint(CliRunner().invoke(cli2, [\"--help\"]).output)\nprint(CliRunner().invoke(cli2, [\"-V\"]).output)\nEOF\ngit diff src/click/decorators.py | grep -c '^-[^-]'"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_019FtVvxXZRBHDy8X9EbiNk8","text":""}]},{"role":"assistant","text":"Issue 7 is done: `click.custom_version_option` now exists and is exported from `click`. Both target tests pass, and the `test_custom_version_option` cases for `--version` and `-V` count as 3 in total.\n\n**What I added:**\n- **Signature:** `custom_version_option(get_message, *param_decls, **kwargs)` in `src/click/decorators.py`. It builds an eager, non-value-exposing flag option, `--version` by default, with the same \"Show the version and exit.\" help text as `version_option`. It takes the same `param_decls` and extra `option()` keyword arguments, so `-V`, `--ver` and `help=` work as usual.\n- **Behavior:** when the flag is given, it calls `get_message(ctx)`, echoes the returned string (honouring `ctx.color`) and exits. The callback gets the full context, so `ctx.info_name` works, as `test_custom_version_option_receives_context` checks. It does nothing during resilient parsing, such as shell completion.\n- **Export and docs:** it's exported in `src/click/__init__.py`. `docs/api.md`, `docs/option-decorators.md` and `CHANGES.md` already referenced it, so I only wrote the docstring (`versionadded:: 8.5.0`, matching `CHANGES.md`).\n- **`version_option` untouched:** the diff to `decorators.py` has no deleted lines.\n\n**Regression check:** with the pinned suite, the three cases went from failing to passing and none newly failed. 63 tests still fail, down from 66.\n\n**Correction:** before writing the code, I said a caller passing `callback=` would get a `TypeError`. That was backwards. I named the first parameter `get_message`, so `callback=` lands in `**kwargs` and is silently overwritten. I confirmed that above: a user callback is ignored and the message prints. That matches how `version_option` treats `callback=`. It's a small footgun. If you want, I can make it raise `TypeError` instead.\n\nSend issue 8 when you're ready.","toolUses":[]},{"role":"user","text":"Issue 8 of 20. Bug report.\n\n**Sentinel available in context during option callbacks** (upstream #3136)\n\nClick's internal `UNSET` sentinel is an implementation detail that is not meant to be exposed, but inside an option callback `ctx.params.get(...)` returns it for parameters that have not been given. A callback should see `None` there, not the sentinel.\n\nFailing:\n tests/test_context.py::test_hiding_of_unset_sentinel_in_callbacks","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Chu5GXh2KbXnyEauGFaqj3","tool":"Bash","input":{"command":"grep -n \"def test_hiding_of_unset_sentinel_in_callbacks\" -B5 -A60 tests/test_context.py; .venv/bin/python -m pytest tests/test_context.py -q -p no:randomly -k test_hiding_of_unset_sentinel_in_callbacks 2>&1 | tail -30"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01R7t6dy1hsZxHZ8JgVW9oCa","tool":"Bash","input":{"command":"grep -n \"UNSET\" src/click/core.py | head -80; cat src/click/_utils.py | head -60"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Chu5GXh2KbXnyEauGFaqj3","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01R7t6dy1hsZxHZ8JgVW9oCa","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_017XkbUTxvGfAuSfumikpuNP","tool":"Bash","input":{"command":"sed -n 244,300p tests/test_context.py; .venv/bin/python -m pytest tests/test_context.py -q -p no:randomly -k test_hiding_of_unset_sentinel_in_callbacks -vv 2>&1 | grep -E \"^E\" | head -80"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01WGof9VFS2fFMFvSUv97pQG","tool":"Bash","input":{"command":"sed -n 1370,1410p src/click/core.py; sed -n 2596,2660p src/click/core.py; sed -n 2700,2790p src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_017XkbUTxvGfAuSfumikpuNP","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01WGof9VFS2fFMFvSUv97pQG","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01LKLwkvq8NrQhVhpvjt1SLt","tool":"Bash","input":{"command":"grep -n \"def process_value\\|self.callback(\\|\\.callback(\" src/click/*.py; grep -n \"self.params\\b\" src/click/core.py | sed -n 1,12p; grep -n \" params: \" src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01LKLwkvq8NrQhVhpvjt1SLt","text":""}]},{"role":"assistant","text":"There is a single call site (`Parameter.process_value`), so the hiding belongs there. I'll add a small context manager on `Context` and use it around the callback.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_017sP5jeJFQgcQP5ZdxNDM3V","tool":"Bash","input":{"command":"sed -n 690,730p src/click/core.py; grep -n \"^ @contextmanager\" -A12 src/click/core.py | head -50"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_017sP5jeJFQgcQP5ZdxNDM3V","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_016ry3y2yk34XwpM31zdd5YT","tool":"Bash","input":{"command":"sed -n 606,640p src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_016ry3y2yk34XwpM31zdd5YT","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_016ssmmJ7RmS5Ags17dC5ibb","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/core.py\"\ns = open(p).read()\n\nold = ''' @property\n def meta(self) -> dict[str, t.Any]:\n \"\"\"This is a dictionary which is shared with all the contexts'''\nnew = ''' @contextmanager\n def _unset_hidden(self) -> cabc.Generator[None]:\n \"\"\"Present the :data:`UNSET` values in :attr:`params` as ``None`` for the\n duration of the block, so that code the user wrote, like a parameter\n callback, never sees the internal sentinel.\n\n On exit, each value that is still the ``None`` put there is restored to\n :data:`UNSET`. A value the block replaced or removed is left as it set it.\n \"\"\"\n hidden = [name for name, value in self.params.items() if value is UNSET]\n\n for name in hidden:\n self.params[name] = None\n\n try:\n yield\n finally:\n for name in hidden:\n if name in self.params and self.params[name] is None:\n self.params[name] = UNSET\n\n @property\n def meta(self) -> dict[str, t.Any]:\n \"\"\"This is a dictionary which is shared with all the contexts'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = ''' if value is UNSET:\n value = None\n value = self.callback(ctx, self, value)\n\n return value\n'''\nnew = ''' if value is UNSET:\n value = None\n\n # The same goes for the values of the other parameters that the\n # callback can read from the context.\n with ctx._unset_hidden():\n value = self.callback(ctx, self, value)\n\n return value\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\n.venv/bin/python -m pytest tests/test_context.py -q -p no:randomly 2>&1 | tail -5"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_016ssmmJ7RmS5Ags17dC5ibb","text":""}]},{"role":"assistant","text":"The target test passes, and so does the whole of `test_context.py`. Full pinned comparison next.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01QLnpFMe17T8p8CvMECZTqh","tool":"Bash","input":{"command":"S=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--on--sonnet/6a805c0c-6d93-4dea-895a-29d0942edcc3/scratchpad; run(){ PYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep '^FAILED' | sed 's/ - .*//' | sort > $1; }; cp $S/after.txt $S/before.txt; run $S/after.txt; wc -l $S/before.txt $S/after.txt | head -2; echo \"--- fixed:\"; comm -23 $S/before.txt $S/after.txt; echo \"--- newly broken:\"; comm -13 $S/before.txt $S/after.txt\n.venv/bin/python -W error - <<'EOF'\nimport click\nfrom click.testing import CliRunner\n\nseen = {}\ndef cb(ctx, param, value):\n seen.update(ctx.params)\n raise click.BadParameter(\"nope\") # exception path still restores\n\n@click.command()\n@click.option(\"--a\")\n@click.option(\"--b\", callback=cb)\ndef cli(a, b): pass\n\nwith CliRunner().isolation():\n ctx = cli.make_context(\"cli\", [], resilient_parsing=False) if False else None\n\nr = CliRunner().invoke(cli, [])\nprint(\"seen in callback:\", seen, \"| exit\", r.exit_code)\nEOF"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01QLnpFMe17T8p8CvMECZTqh","text":""}]},{"role":"assistant","text":"Issue 8 is fixed: an option callback that reads `ctx.params` for a parameter nobody supplied now gets `None`, not the internal `UNSET` sentinel. `test_hiding_of_unset_sentinel_in_callbacks` passes, and so does the rest of `tests/test_context.py`.\n\n**Cause:** `Parameter.process_value` already turned the callback's own `value` from `UNSET` into `None`. But `ctx.params` still held `UNSET` for parameters that had been processed and not given, and that is what a callback saw through `ctx.params.get(...)`.\n\n**Fix** (`src/click/core.py`):\n- **New context manager:** `Context._unset_hidden()` swaps every `UNSET` in `ctx.params` for `None` while the block runs. On exit it puts `UNSET` back on each entry that is still the `None` it inserted.\n- **Used around the callback:** `Parameter.process_value` calls `self.callback(...)` inside that block, and it's the only place a parameter callback is invoked.\n\n**Behavior the test pins down:**\n- **Inside a callback:** unset values read as `None`.\n- **Outside a callback:** they stay `UNSET`. This is deliberate, because when several parameters share a name, `UNSET` is what lets an unset one count as a missing value. Converting earlier would break that.\n- **If a callback assigns to `ctx.params`:** what it assigned stays, whether that's `\"changed\"` or `None` on a value that wasn't unset. Removing a key also sticks. Only untouched entries revert.\n- **Raising callbacks:** a callback that raises (for example `BadParameter`) still restores state. I checked that manually.\n\n**Regression check:** with the pinned suite, that one test went from failing to passing and none newly failed. 62 tests still fail, down from 63.\n\nOne edge case: if a callback deliberately sets a previously unset entry to `None`, that entry goes back to `UNSET` on exit. `parse_args` converts every remaining `UNSET` to `None` at the end anyway, so the final value is identical.\n\nSend issue 9 when you're ready.","toolUses":[]},{"role":"user","text":"Issue 9 of 20. Bug report.\n\nThe progress bar does not land on its final position when it finishes -- the last render stops short.\n\nFailing:\n tests/test_termui.py::test_progressbar_lands_on_final_position","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_013seKWamqnAi1UD8LLso92F","tool":"Bash","input":{"command":"grep -n \"def test_progressbar_lands_on_final_position\" -B25 -A30 tests/test_termui.py; .venv/bin/python -m pytest tests/test_termui.py -q -p no:randomly -k test_progressbar_lands_on_final_position 2>&1 | tail -15"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01XFsK4HhquzrNZ5S6Vjgowz","tool":"Bash","input":{"command":"grep -n \"class ProgressBar\" -A420 src/click/_termui_impl.py | sed -n 1,470p"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_013seKWamqnAi1UD8LLso92F","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01XFsK4HhquzrNZ5S6Vjgowz","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01HjYu488TrFUmLhntYyjyBU","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/_termui_impl.py\"\ns = open(p).read()\n\nold = ''' tb: TracebackType | None,\n ) -> None:\n self.render_finish()\n\n def __iter__(self) -> cabc.Iterator[V]:'''\nnew = ''' tb: TracebackType | None,\n ) -> None:\n # Steps held back by ``update_min_steps`` are real progress, so show them.\n if self._completed_intervals:\n self._apply_pending_steps()\n self.render_progress()\n\n self.render_finish()\n\n def __iter__(self) -> cabc.Iterator[V]:'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = ''' def finish(self) -> None:\n self.eta_known = False'''\nnew = ''' def _apply_pending_steps(self) -> None:\n \"\"\"Advance by the steps that :meth:`update` is still holding back.\n\n ``update_min_steps`` only defers steps, so a threshold that does not\n divide the total would otherwise leave the remainder unapplied and the\n bar short of its final position.\n \"\"\"\n if self._completed_intervals:\n self.make_step(self._completed_intervals)\n self._completed_intervals = 0\n\n def finish(self) -> None:\n self._apply_pending_steps()\n self.eta_known = False'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\n.venv/bin/python -m pytest tests/test_termui.py -q -p no:randomly -k \"progressbar\" 2>&1 | tail -5"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01HjYu488TrFUmLhntYyjyBU","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Y295sc87Rs8X2qUsw9fh5q","tool":"Bash","input":{"command":"S=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--on--sonnet/6a805c0c-6d93-4dea-895a-29d0942edcc3/scratchpad; run(){ PYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep '^FAILED' | sed 's/ - .*//' | sort > $1; }; cp $S/after.txt $S/before.txt; run $S/after.txt; wc -l $S/before.txt $S/after.txt | head -2; echo \"--- fixed:\"; comm -23 $S/before.txt $S/after.txt; echo \"--- newly broken:\"; comm -13 $S/before.txt $S/after.txt; grep -c progressbar_item_show_func $S/before.txt"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Y295sc87Rs8X2qUsw9fh5q","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Xtz6AZCCpBAHNjTT3kSZ94","tool":"Bash","input":{"command":".venv/bin/python -W error - <<'EOF'\nimport io\nimport click, click._termui_impl as impl\nimpl.isatty = lambda _: True\n\n# abandoned halfway with a pending remainder: pos is accurate, bar is not \"finished\"\ns = io.StringIO()\nwith click.progressbar(length=20, show_pos=True, update_min_steps=7, file=s) as bar:\n for _ in range(10):\n bar.update(1)\nprint(\"halfway: pos\", bar.pos, \"finished\", bar.finished, \"| shows 10/20:\", \"10/20\" in s.getvalue())\n\n# exception inside the block\ns = io.StringIO()\ntry:\n with click.progressbar(length=20, show_pos=True, update_min_steps=7, file=s) as bar:\n bar.update(5)\n raise RuntimeError\nexcept RuntimeError:\n pass\nprint(\"exception: pos\", bar.pos, \"finished\", bar.finished)\n\n# unknown length\ns = io.StringIO()\nwith click.progressbar(range(10), length=None, show_pos=True, update_min_steps=4, file=s) as bar:\n for _ in bar: pass\nprint(\"no length hint drive: pos\", bar.pos, \"finished\", bar.finished)\nEOF"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Xtz6AZCCpBAHNjTT3kSZ94","text":""}]},{"role":"assistant","text":"Issue 9 is fixed: the progress bar now lands on its final position whatever `update_min_steps` is. All 6 failing cases of `test_progressbar_lands_on_final_position` pass (iterate and update, thresholds 3, 7 and 25).\n\n**Cause:** `ProgressBar.update()` batches steps and only advances the bar once `update_min_steps` have accumulated. Nothing applied the remainder when the loop ended:\n- **Threshold 3, length 20:** the bar committed at 3, 6 … 18, then dropped the last 2 and stopped at `18/20`.\n- **Threshold 7:** it froze at `14/20`.\n- **Threshold 25:** it never reached a commit and stayed at 0.\n- **Thresholds 1 and 2:** these divide 20, which is why they already passed.\n\n**Fix** (`src/click/_termui_impl.py`):\n- **New helper:** `_apply_pending_steps()` applies whatever `update()` is still holding back.\n- **Iterator path:** `finish()` calls the helper first. The iteration path already ends with `finish()` followed by a render, so the last render now shows `20/20`.\n- **`update()` path:** `__exit__` applies pending steps and renders before drawing the closing newline. This covers callers who drive the bar with `bar.update(...)` and never call `finish()`.\n- **No forced completion:** `__exit__` does not call `finish()`. I checked that a bar abandoned at 10 of 20 with a threshold of 7 reports `pos == 10`, `finished == False` and renders `10/20`. The same holds when an exception leaves the block early. The pending steps count as real progress, but the bar isn't marked complete.\n\n**Regression check:** with the pinned suite, the 6 cases went from failing to passing and none newly failed. 56 tests still fail, down from 62. `test_progressbar_item_show_func` is one of them. It was failing before I touched anything, so I'm assuming it belongs to a later issue.\n\nSend issue 10 when you're ready.","toolUses":[]},{"role":"user","text":"Issue 10 of 20. Bug report.\n\nWhen a command's name is generated from its function name, a conventional suffix such as `_command` or `_group` should be dropped from it. It is kept instead. The failing tests show the exact rule.\n\nFailing:\n tests/test_command_decorators.py::test_generate_name\n tests/test_commands.py::test_other_command_invoke_with_defaults","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01FuGAJp383kWWVWikjebDbJ","tool":"Bash","input":{"command":"grep -n \"def test_generate_name\" -B5 -A40 tests/test_command_decorators.py; grep -n \"def test_other_command_invoke_with_defaults\" -B3 -A30 tests/test_commands.py; .venv/bin/python -m pytest tests/test_command_decorators.py tests/test_commands.py -q -p no:randomly -k \"test_generate_name or test_other_command_invoke_with_defaults\" 2>&1 | grep -E \"^E|FAILED|passed|failed\" | head -30"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01QF1zxBijvrN8VgcSbvaS5n","tool":"Bash","input":{"command":"sed -n 213,300p src/click/decorators.py; grep -rn \"_command\\|_cmd\\|_group\" docs/*.md CHANGES.md | grep -i \"suffix\\|strip\\|name\" | head"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01FuGAJp383kWWVWikjebDbJ","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01QF1zxBijvrN8VgcSbvaS5n","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01TETBLchGwxu1mEHBNJ1fPe","tool":"Bash","input":{"command":"sed -n 430,440p CHANGES.md; sed -n 60,92p tests/test_command_decorators.py; grep -n \"name=\\|f.__name__\" src/click/decorators.py | head -20; grep -n \"suffix\\|_command\\|_cmd\" docs/commands-and-groups.md docs/quickstart.md docs/entry-points.md | head"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01TETBLchGwxu1mEHBNJ1fPe","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_0154WVXQ6Njon16oDsqR1pjy","tool":"Bash","input":{"command":"grep -rn \"__name__\" src/click/*.py | grep -v \"^src/click/_compat\\|__name__ ==\" | head; grep -n \"def command\\b\" -A25 src/click/core.py | grep -n \"decorators\\|command(\" | head"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_0154WVXQ6Njon16oDsqR1pjy","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01LeGUF2YEa55huaNDdPAxxC","tool":"Edit","input":{"replace_all":false,"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--on--sonnet/src/click/decorators.py","old_string":" cmd = cls(\n name=name or f.__name__.lower().replace(\"_\", \"-\"),\n callback=f,","new_string":" if name:\n cmd_name = name\n else:\n cmd_name = f.__name__.lower().replace(\"_\", \"-\")\n cmd_left, sep, suffix = cmd_name.rpartition(\"-\")\n\n # Drop a conventional suffix, but never leave the name empty.\n if cmd_left and sep and suffix in {\"command\", \"cmd\", \"group\", \"grp\"}:\n cmd_name = cmd_left\n\n cmd = cls(\n name=cmd_name,\n callback=f,"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01LeGUF2YEa55huaNDdPAxxC","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01PzrShDBC9TiNmwxaQqMpkt","tool":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_command_decorators.py tests/test_commands.py -q -p no:randomly 2>&1 | tail -4; S=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--on--sonnet/6a805c0c-6d93-4dea-895a-29d0942edcc3/scratchpad; run(){ PYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep '^FAILED' | sed 's/ - .*//' | sort > $1; }; cp $S/after.txt $S/before.txt; run $S/after.txt; wc -l $S/before.txt $S/after.txt | head -2; echo \"--- fixed:\"; comm -23 $S/before.txt $S/after.txt; echo \"--- newly broken:\"; comm -13 $S/before.txt $S/after.txt\n.venv/bin/python -W error - <<'EOF'\nimport click\ndef mk(fname, **kw):\n def f(): pass\n f.__name__ = fname\n return click.command(**kw)(f).name\nfor n in [\"command\", \"cmd\", \"_cmd\", \"_command\", \"init_data_command_\", \"foo_group_command\", \"Foo_CMD\", \"mycommand\", \"sub_group\"]:\n print(f\"{n!r:22} ->\", repr(mk(n)))\nprint(\"explicit name kept ->\", repr(mk(\"x_cmd\", name=\"x-cmd\")))\n@click.group()\ndef cli_group(): pass\nprint(\"group ->\", cli_group.name)\nEOF"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01PzrShDBC9TiNmwxaQqMpkt","text":""}]},{"role":"assistant","text":"Issue 10 is fixed: when a command's name is generated from its function name, a trailing `_command`, `_cmd`, `_group` or `_grp` is now dropped. `init_data_command`, `init_data_cmd`, `init_data_group` and `init_data_grp` all become `init-data`, and `other_cmd` becomes `other`. That covers all 21 parametrized cases across the two tests you listed.\n\n**Cause:** `click.command` built the name with `f.__name__.lower().replace(\"_\", \"-\")` and did nothing more. `CHANGES.md` already documents the suffix rule ({issue}`2322`), but the code for it was missing.\n\n**Fix** (`src/click/decorators.py`): after the lowercase and dash conversion, if the name's last dash-separated part is `command`, `cmd`, `group` or `grp`, that part is removed. An explicit `name=` is never touched. `group()`, `Group.command` and `Group.group` all go through this decorator, so they get the same behavior.\n\n**Edge cases I checked:**\n- **Only the last suffix goes:** `foo_group_command` becomes `foo-group`. `sub_group` becomes `sub`, and a function named `cli_group` yields a group called `cli`.\n- **No suffix, no change:** `mycommand`, `command` and `cmd` (a bare suffix with no dash before it) stay as they are. So does a name with a trailing underscore, like `init_data_command_`.\n- **Never an empty name:** `_cmd` keeps its `-cmd` rather than being stripped to nothing. I added that guard myself. Without it the name would be an empty string, which Click would treat as unset.\n- **Explicit name wins:** `name=\"x-cmd\"` on a function called `x_cmd` stays `x-cmd`.\n\n**Regression check:** with the pinned suite, 21 cases went from failing to passing and none newly failed. 35 tests still fail, down from 56. Ten of them are in the same two test files, such as `test_deprecated_empty_help_no_leading_space`. They were failing before this change, and I'm assuming they belong to later issues.\n\nSend issue 11 when you're ready.","toolUses":[]},{"role":"user","text":"Issue 11 of 20. Bug report.\n\nWhen a group can be invoked without a subcommand, its usage line still presents the subcommand as required. It should be marked optional.\n\nFailing:\n tests/test_commands.py::test_subcommand_metavar_marks_optional","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01DXLbBxYFKWCqQ19xCwu2mr","tool":"Bash","input":{"command":"grep -n \"def test_subcommand_metavar_marks_optional\" -B30 -A25 tests/test_commands.py; .venv/bin/python -m pytest tests/test_commands.py -q -p no:randomly -k test_subcommand_metavar_marks_optional 2>&1 | grep -E \"^E|FAILED|passed|failed\" | head -30"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_019PzXopd7Bb8YHMGkZWyXBJ","tool":"Bash","input":{"command":"grep -n \"subcommand_metavar\" src/click/*.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01DXLbBxYFKWCqQ19xCwu2mr","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_019PzXopd7Bb8YHMGkZWyXBJ","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01LvHi5fRPRBg7Avt5snX5bG","tool":"Bash","input":{"command":"sed -n 1690,1712p src/click/core.py; sed -n 1740,1800p src/click/core.py; sed -n 1975,1990p src/click/core.py; grep -rn \"subcommand_metavar\\|invoke_without_command\" tests/*.py | grep -v \"test_commands.py:3[01]\" | head -20; grep -n \"subcommand_metavar\" docs/*.md CHANGES.md"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01LvHi5fRPRBg7Avt5snX5bG","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01MSFYr4R12bUBSggSevL2Gi","tool":"Bash","input":{"command":"sed -n 1,30p CHANGES.md | grep -n -i \"usage\\|metavar\\|subcommand\\|optional\"; grep -rn \"COMMAND \\[ARGS\\]\\|\\[COMMAND\\]\\|COMMAND1\" tests/*.py docs/*.md | grep -v \"test_commands.py:30\" | head -20"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01MSFYr4R12bUBSggSevL2Gi","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_011cr2LZeTgVdvdVsvMyPh3p","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/core.py\"\ns = open(p).read()\n\nold = ''' if subcommand_metavar is None:\n if chain:\n subcommand_metavar = \"COMMAND1 [ARGS]... [COMMAND2 [ARGS]...]...\"\n else:\n subcommand_metavar = \"COMMAND [ARGS]...\"\n'''\nnew = ''' if subcommand_metavar is None:\n first = \"COMMAND1\" if chain else \"COMMAND\"\n\n # The first subcommand is optional if the group can run without it.\n if invoke_without_command:\n first = f\"[{first}]\"\n\n subcommand_metavar = f\"{first} [ARGS]...\"\n\n if chain:\n subcommand_metavar += \" [COMMAND2 [ARGS]...]...\"\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = ''' :param subcommand_metavar: How to represent the subcommand argument in help.\n The default will represent whether ``chain`` is set or not.\n'''\nnew = ''' :param subcommand_metavar: How to represent the subcommand argument in help.\n The default will represent whether ``chain`` is set or not, and marks the\n first subcommand as optional if ``invoke_without_command`` is set.\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\n.venv/bin/python -m pytest tests/test_commands.py tests/test_chain.py tests/test_basic.py -q -p no:randomly -k \"metavar or chain or help\" 2>&1 | tail -3\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--on--sonnet/6a805c0c-6d93-4dea-895a-29d0942edcc3/scratchpad; run(){ PYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep '^FAILED' | sed 's/ - .*//' | sort > $1; }; cp $S/after.txt $S/before.txt; run $S/after.txt; wc -l $S/before.txt $S/after.txt | head -2; echo \"--- fixed:\"; comm -23 $S/before.txt $S/after.txt; echo \"--- newly broken:\"; comm -13 $S/before.txt $S/after.txt"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_011cr2LZeTgVdvdVsvMyPh3p","text":""}]},{"role":"assistant","text":"Issue 11 is fixed: a group created with `invoke_without_command=True` now shows its leading subcommand in brackets in the usage line. `test_subcommand_metavar_marks_optional` passes for all four combinations.\n\n**Cause:** `Group.__init__` picked the default subcommand metavar from `chain` alone. `invoke_without_command` was ignored, so an optional subcommand was still presented as required.\n\n**Fix** (`src/click/core.py`): the default metavar is now built from two parts. The leading token is `COMMAND` or `COMMAND1` depending on `chain`, and it's wrapped in `[...]` when `invoke_without_command` is true. Chained groups still get ` [COMMAND2 [ARGS]...]...` appended.\n\n| `chain` | `invoke_without_command` | Usage line |\n|---|---|---|\n| no | no | `COMMAND [ARGS]...` (unchanged) |\n| no | yes | `[COMMAND] [ARGS]...` |\n| yes | no | `COMMAND1 [ARGS]... [COMMAND2 [ARGS]...]...` (unchanged) |\n| yes | yes | `[COMMAND1] [ARGS]... [COMMAND2 [ARGS]...]...` |\n\n**Compatibility:**\n- **Explicit `subcommand_metavar`:** it is used as given, so nothing changes for anyone who set one.\n- **When it's computed:** the default is computed once, at construction, like `no_args_is_help` already is. Flipping `group.invoke_without_command` on an existing group later won't change the usage line.\n- **Docs:** `docs/documentation.md` already describes this convention, so I only updated the `subcommand_metavar` parameter docstring.\n\n**Regression check:** with the pinned suite, the 2 previously failing cases now pass and none newly failed. The other 2 cases already passed. 33 tests still fail, down from 35.\n\nSend issue 12 when you're ready.","toolUses":[]},{"role":"user","text":"Issue 12 of 20. Bug report.\n\nWhen `PAGER` is set with its own arguments, click does not forward all of them to the pager, and decides whether the pager handles raw control codes by looking at the wrong thing -- it should parse the option tokens. `less.exe` on Windows is not recognised as `less` either.\n\nFailing:\n tests/test_termui.py::test_pipepager_less_detection_case_insensitive_on_windows\n tests/test_termui.py::test_pipepager_less_detection_matches_stem\n tests/test_termui.py::test_pipepager_less_raw_mode_detection\n tests/test_termui.py::test_tempfile_pager_passes_pager_params","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01D8UtdyYjRKKoyc6NogUXNM","tool":"Bash","input":{"command":"grep -n \"def test_pipepager_less_detection_case_insensitive_on_windows\\|def test_pipepager_less_detection_matches_stem\\|def test_pipepager_less_raw_mode_detection\\|def test_tempfile_pager_passes_pager_params\" tests/test_termui.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01D8UtdyYjRKKoyc6NogUXNM","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01K7ijhrXz9oZZybVEvjXuRw","tool":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_termui.py -q -p no:randomly -k \"pipepager or tempfile_pager or pager\" 2>&1 | grep -E \"^(FAILED|[0-9]+ (passed|failed))|passed|failed\""}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01K7ijhrXz9oZZybVEvjXuRw","text":""}]},{"role":"assistant","text":"`test_echo_via_pager_streams_each_write` also fails, but it isn't in this issue's list, so I'll leave it for now. Reading the four target tests and the pager implementation.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_017GxrZoVgoo553R5K2EUJ5v","tool":"Bash","input":{"command":"sed -n 700,960p tests/test_termui.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_017GxrZoVgoo553R5K2EUJ5v","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01QCtXWZEWioY3yieNxzSjSu","tool":"Bash","input":{"command":"sed -n 1190,1330p tests/test_termui.py; sed -n 455,700p src/click/_termui_impl.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01QCtXWZEWioY3yieNxzSjSu","text":""}]},{"role":"assistant","text":"The test helper `_force_tempfile_pager` decides how `_tempfilepager` gets called, so I need to see it before changing the signature.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01HQqL2BRQoM3k1pcXTiqLWJ","tool":"Bash","input":{"command":"grep -n \"def _force_tempfile_pager\" -A25 tests/test_termui.py; grep -n \"_tempfilepager\\|_pipepager\" tests/*.py | head -20; grep -n \"3416\\|less\\b\" CHANGES.md | head"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01HQqL2BRQoM3k1pcXTiqLWJ","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01KjMf6RYftxaJcRrNo1siAJ","tool":"Bash","input":{"command":"less --version 2>&1 | head -1; less --help 2>&1 | grep -E \"^\\s+(-[a-zA-Z#\\\"~?^.]|--[A-Za-z])\" | grep -iE \"^\\s+-[DkoOpPtTxyzjhb#]|raw-control|RAW-CONTROL\" | head -30"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01KjMf6RYftxaJcRrNo1siAJ","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_013zAzMZHi79jQ7TuxAuAdZY","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/_termui_impl.py\"\ns = open(p).read()\n\n# 1. helpers, placed before _pipepager\nold = '''@contextlib.contextmanager\ndef _pipepager(\n cmd_path: Path, cmd_params: list[str], color: bool | None = None\n) -> t.Iterator[tuple[t.TextIO, bool | None]]:'''\nnew = '''def _is_less(cmd_path: Path) -> bool:\n \"\"\"Whether the resolved pager command is ``less``, by its stem so that a\n ``less.exe`` matches too. Windows filesystems ignore case, so the match does\n as well there.\n \"\"\"\n stem = cmd_path.stem\n\n if WIN:\n stem = stem.casefold()\n\n return stem == \"less\"\n\n\n# The short options of ``less`` that take a string, which is the rest of the\n# token: ``-Pprompt``. What follows the letter is a value, not more options.\n_LESS_STRING_OPTIONS = frozenset(\"DkoOpPtT\")\n_LESS_RAW_CONTROL_CHARS_OPTIONS = frozenset(\n (\"--raw-control-chars\", \"--RAW-CONTROL-CHARS\")\n)\n\n\ndef _less_options_request_raw_mode(tokens: cabc.Iterable[str]) -> bool:\n \"\"\"Whether the ``less`` option tokens ask for raw control characters, with\n ``-r`` or ``-R`` (short options may be bundled, like ``-FRX``) or their long\n forms.\n\n Only option tokens count. A filename such as ``README.md``, the value of an\n option, like the ``resume`` of ``--prompt=resume`` or the ``r`` of\n ``-Pr``, and anything after ``--`` are not options.\n \"\"\"\n for token in tokens:\n if token == \"--\":\n break\n\n if token.startswith(\"--\"):\n if token in _LESS_RAW_CONTROL_CHARS_OPTIONS:\n return True\n elif token.startswith(\"-\"):\n for letter in token[1:]:\n if letter in \"rR\":\n return True\n\n if letter in _LESS_STRING_OPTIONS:\n break\n\n return False\n\n\n@contextlib.contextmanager\ndef _pipepager(\n cmd_path: Path, cmd_params: list[str], color: bool | None = None\n) -> t.Iterator[tuple[t.TextIO, bool | None]]:'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\n# 2. detection in _pipepager\nold = ''' # If we're piping to less and the user hasn't decided on colors, we enable\n # them by default we find the -R flag in the command line arguments.\n if color is None and cmd_path.name == \"less\":\n less_flags = f\"{os.environ.get('LESS', '')}{' '.join(cmd_params)}\"\n if not less_flags:\n env[\"LESS\"] = \"-R\"\n color = True\n elif \"r\" in less_flags or \"R\" in less_flags:\n color = True\n'''\nnew = ''' # If we're piping to less and the user hasn't decided on colors, we enable\n # them by default, or when we find the raw mode option in the ``LESS``\n # environment variable or in the command line arguments.\n if color is None and _is_less(cmd_path):\n less_env = os.environ.get(\"LESS\", \"\")\n\n if not less_env and not cmd_params:\n env[\"LESS\"] = \"-R\"\n color = True\n else:\n try:\n less_env_tokens = shlex.split(less_env)\n except ValueError:\n # Unbalanced quotes. Still look for the options.\n less_env_tokens = less_env.split()\n\n if _less_options_request_raw_mode(\n less_env_tokens\n ) or _less_options_request_raw_mode(cmd_params):\n color = True\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\n# 3. tempfile pager forwards the parameters\nold = '''@contextlib.contextmanager\ndef _tempfilepager(\n cmd_path: Path, color: bool | None = None\n) -> t.Iterator[tuple[t.TextIO, bool | None]]:\n \"\"\"Page through text by invoking a program on a temporary file.\n\n Used as the primary pager strategy on Windows (where piping to\n ``more`` adds spurious ``\\\\\\\\r\\\\\\\\n``), and as a fallback on other\n platforms. The command is invoked with the temporary file as its only\n argument: any parameters the user set in ``PAGER`` are not passed on.\n \"\"\"'''\nnew = '''@contextlib.contextmanager\ndef _tempfilepager(\n cmd_path: Path, cmd_params: list[str], color: bool | None = None\n) -> t.Iterator[tuple[t.TextIO, bool | None]]:\n \"\"\"Page through text by invoking a program on a temporary file.\n\n Used as the primary pager strategy on Windows (where piping to\n ``more`` adds spurious ``\\\\\\\\r\\\\\\\\n``), and as a fallback on other\n platforms. The command is invoked with the parameters the user set in\n ``PAGER``, followed by the temporary file.\n \"\"\"'''\nassert s.count(old) == 1, s.count(old)\ns = s.replace(old, new, 1)\n\nold = \" subprocess.call([str(cmd_path), f.name])\"\nnew = \" subprocess.call([str(cmd_path), *cmd_params, f.name])\"\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = \" return _tempfilepager(cmd_path, color)\"\nnew = \" return _tempfilepager(cmd_path, cmd_params, color)\"\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\n.venv/bin/python -m pytest tests/test_termui.py -q -p no:randomly -k \"pager\" 2>&1 | tail -4"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_013zAzMZHi79jQ7TuxAuAdZY","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_015JxrucJi28sMkqFHa24E38","tool":"Bash","input":{"command":"S=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--on--sonnet/6a805c0c-6d93-4dea-895a-29d0942edcc3/scratchpad; run(){ PYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep '^FAILED' | sed 's/ - .*//' | sort > $1; }; cp $S/after.txt $S/before.txt; run $S/after.txt; wc -l $S/before.txt $S/after.txt | head -2; echo \"--- fixed:\"; comm -23 $S/before.txt $S/after.txt; echo \"--- newly broken:\"; comm -13 $S/before.txt $S/after.txt\n.venv/bin/python - <<'EOF'\nfrom click._termui_impl import _less_options_request_raw_mode as f\ncases = [\n ([\"-FRX\"], True), ([\"-F\", \"-X\"], False), ([\"-Pr\"], False), ([\"-Pprompt\", \"-R\"], True),\n ([\"-iPresume\"], False), ([\"-Rp\"], True), ([\"-pR\"], False), ([\"--raw-control-chars\"], True),\n ([\"--RAW-CONTROL-CHARS\"], True), ([\"--raw-control-chars=x\"], False), ([\"--\", \"-R\"], False),\n ([\"-\"], False), ([\"+G\", \"file.txt\"], False), ([\"-z-4\", \"-r\"], True), ([], False),\n]\nbad = [(t, e, f(t)) for t, e in cases if f(t) != e]\nprint(\"mismatches:\", bad or \"none\")\nEOF"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_015JxrucJi28sMkqFHa24E38","text":""}]},{"role":"assistant","text":"Issue 12 is fixed: `PAGER` arguments are now forwarded on the temp-file path, and click decides whether `less` gets raw control codes by parsing option tokens. All four tests you listed pass, which is 8 cases with the parametrized ones.\n\n**What was wrong, and the fix** (`src/click/_termui_impl.py`):\n- **Arguments not forwarded:** `_tempfilepager` dropped everything in `PAGER` except the command, so `PAGER=\"head -n 1\"` ran plain `head` on Windows. It now takes `cmd_params` like `_pipepager` does and runs `command *params tempfile`.\n- **Wrong raw-mode check:** `_pipepager` searched the joined `LESS` value and arguments for the letters `r` or `R` anywhere. `README.md`, `requirements.txt` and `--prompt=resume` all counted as raw mode. A new `_less_options_request_raw_mode` parses the tokens, and a token counts only if it is:\n - a short bundle containing `r` or `R`, like `-FRX`; or\n - the exact long form `--raw-control-chars` or `--RAW-CONTROL-CHARS`.\n- **Not counted as raw mode:**\n - filenames and `+cmd` tokens;\n - `--foo=value`;\n - anything after `--`;\n - the attached value of a string option: `-Pr` sets a prompt, so its `r` doesn't count. I checked on the local less 668 that `-D -k -o -O -p -P -t -T` take a string.\n- **`less` recognition:** `less.exe` now matches by stem. `_is_less` compares exactly on POSIX and case-insensitively when `WIN` is set, so `LESS.EXE` matches on Windows only.\n- **Unbalanced quotes in `LESS`:** they fall back to whitespace splitting, as `test_pipepager_less_raw_mode_detection` requires.\n- **Unchanged:** injecting `LESS=-R` when there is no `LESS` value and no arguments.\n\n**Regression check:** with the pinned suite, 8 cases went from failing to passing and none newly failed. 25 tests still fail, down from 33. I also ran 15 extra option-parsing cases directly, such as `-Pr`, `-pR`, `--` and a bare `-`, and all matched what I expect.\n\n`test_echo_via_pager_streams_each_write` is another pager test that still fails. It isn't in this issue's list, so I left it alone and assume it belongs to a later issue.\n\n`CHANGES.md` already describes both changes ({pr}`3777`, {issue}`3416`), so I didn't touch it.\n\nSend issue 13 when you're ready.","toolUses":[]},{"role":"user","text":"Issue 13 of 20. Bug report.\n\nA user-defined `type_cast_value` on a custom parameter class can be called with click's internal `UNSET` sentinel. User code must never see `UNSET`.\n\nFailing:\n tests/test_arguments.py::test_argument_custom_class_can_override_type_cast_value_and_never_sees_unset\n tests/test_options.py::test_option_custom_class_can_override_type_cast_value_and_never_sees_unset","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01WB7YWpMMKEC9aGdm2YuJYa","tool":"Bash","input":{"command":"grep -n \"def test_argument_custom_class_can_override_type_cast_value_and_never_sees_unset\" -B3 -A45 tests/test_arguments.py; grep -n \"def test_option_custom_class_can_override_type_cast_value_and_never_sees_unset\" -B3 -A45 tests/test_options.py; .venv/bin/python -m pytest tests/test_arguments.py tests/test_options.py -q -p no:randomly -k \"never_sees_unset\" 2>&1 | grep -E \"^E|FAILED|passed|failed\" | head"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01MedQPiR1QCrSg78goJS1GR","tool":"Bash","input":{"command":"grep -n \"def type_cast_value\" -B3 -A50 src/click/core.py; grep -n \"type_cast_value\" src/click/*.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01WB7YWpMMKEC9aGdm2YuJYa","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01MedQPiR1QCrSg78goJS1GR","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_011THLDqWcimmquKr4bbunX3","tool":"Bash","input":{"command":"sed -n 700,718p tests/test_arguments.py; sed -n 1105,1136p tests/test_options.py; sed -n 2470,2572p src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_011THLDqWcimmquKr4bbunX3","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01MX621DEv4jeLt8VPuiBLoD","tool":"Bash","input":{"command":"sed -n 2621,2700p src/click/core.py; sed -n 3120,3175p src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01MX621DEv4jeLt8VPuiBLoD","text":""}]},{"role":"assistant","text":"I need to see exactly which parametrizations currently pass `UNSET` in, so I'll run them individually.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01NE4rUbHtSzVqRq5diuftDo","tool":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_arguments.py tests/test_options.py -q -p no:randomly -k \"never_sees_unset\" -v 2>&1 | grep -E \"PASSED|FAILED\" | sed 's/ - .*//'"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01NE4rUbHtSzVqRq5diuftDo","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01LUkoqwj8SwXk23rjFkm7er","tool":"Bash","input":{"command":"sed -n 925,985p src/click/core.py; sed -n 3186,3260p src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01LUkoqwj8SwXk23rjFkm7er","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Ea2qb69nmPqBoeN66mQbub","tool":"Bash","input":{"command":"grep -rn \"type_cast_value\" tests/*.py docs/*.md CHANGES.md | head; sed -n 3575,3665p src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Ea2qb69nmPqBoeN66mQbub","text":""}]},{"role":"assistant","text":"`CHANGES.md` already mentions `type_cast_value` under {issue}`3069`. I'll read that entry so the behavior I implement matches what's documented.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01CSekjPrBoRdCYtGKvKVuF5","tool":"Bash","input":{"command":"sed -n 334,342p CHANGES.md"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01CSekjPrBoRdCYtGKvKVuF5","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01BuTbyfasWrUWXFvFCnyo7g","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/core.py\"\ns = open(p).read()\n\n# 1. base type_cast_value: no more UNSET handling\nold = ''' \"\"\"Convert and validate a value against the parameter's\n :attr:`type`, :attr:`multiple`, and :attr:`nargs`.\n \"\"\"\n if value in (None, UNSET):\n if self.multiple or self.nargs == -1:\n return ()\n else:\n return value\n'''\nnew = ''' \"\"\"Convert and validate a value against the parameter's\n :attr:`type`, :attr:`multiple`, and :attr:`nargs`.\n\n The value is never the internal :data:`UNSET` sentinel: :meth:`process_value`\n does not call this method for a value that was not set.\n \"\"\"\n if value is None:\n if self.multiple or self.nargs == -1:\n return ()\n else:\n return value\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\n# 2. hook + process_value\nold = ''' def process_value(self, ctx: Context, value: t.Any) -> t.Any:\n \"\"\"Process the value of this parameter:\n\n 1. Type cast the value using :meth:`type_cast_value`.\n 2. Check if the value is missing (see: :meth:`value_is_missing`), and raise\n :exc:`MissingParameter` if it is required.\n'''\nnew = ''' def _resolve_unset(self) -> t.Any:\n \"\"\"The value a parameter takes when nothing was given for it, if that is\n more than \"missing\": an empty tuple for a parameter that holds several\n values. Otherwise the :data:`UNSET` sentinel is kept, so that the value is\n reported as missing.\n \"\"\"\n if self.multiple or self.nargs == -1:\n return ()\n\n return UNSET\n\n def process_value(self, ctx: Context, value: t.Any) -> t.Any:\n \"\"\"Process the value of this parameter:\n\n 1. Type cast the value using :meth:`type_cast_value`. A value that was not\n set is not cast: it is resolved on its own, so that :meth:`type_cast_value`,\n which subclasses may override, never sees the :data:`UNSET` sentinel.\n 2. Check if the value is missing (see: :meth:`value_is_missing`), and raise\n :exc:`MissingParameter` if it is required.\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\nold = ''' value = self.type_cast_value(ctx, value)\n\n if self.required and self.value_is_missing(value):\n raise MissingParameter(ctx=ctx, param=self)\n'''\nnew = ''' if value is UNSET:\n value = self._resolve_unset()\n else:\n value = self.type_cast_value(ctx, value)\n\n if self.required and self.value_is_missing(value):\n raise MissingParameter(ctx=ctx, param=self)\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\n# 3. Option: replace type_cast_value override with the hook override\nold = ''' def type_cast_value(self, ctx: Context, value: t.Any) -> t.Any:\n if self.is_flag and not self.required:\n if value is UNSET:\n if self.is_bool_flag:\n # If the flag is a boolean flag, we return False if it is not set.\n value = False\n return super().type_cast_value(ctx, value)\n'''\nnew = ''' def _resolve_unset(self) -> t.Any:\n # A boolean flag that is not required is off if it is not set.\n if self.is_flag and not self.required and self.is_bool_flag:\n return False\n\n return super()._resolve_unset()\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\n.venv/bin/python -m pytest tests/test_arguments.py tests/test_options.py -q -p no:randomly -k \"never_sees_unset\" 2>&1 | tail -3"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01BuTbyfasWrUWXFvFCnyo7g","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01LyJoMJNrfksPGsDz7ou6r1","tool":"Bash","input":{"command":"S=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--on--sonnet/6a805c0c-6d93-4dea-895a-29d0942edcc3/scratchpad; run(){ PYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep '^FAILED' | sed 's/ - .*//' | sort > $1; }; cp $S/after.txt $S/before.txt; run $S/after.txt; wc -l $S/before.txt $S/after.txt | head -2; echo \"--- fixed:\"; comm -23 $S/before.txt $S/after.txt; echo \"--- newly broken:\"; comm -13 $S/before.txt $S/after.txt\n.venv/bin/python -W error - <<'EOF'\nimport click\nfrom click.testing import CliRunner\nseen = []\n\nclass Spy:\n def type_cast_value(self, ctx, value):\n seen.append((self.name, value))\n return super().type_cast_value(ctx, value)\n\nclass SpyOpt(Spy, click.Option): pass\nclass SpyArg(Spy, click.Argument): pass\n\n@click.command()\n@click.option(\"--req\", cls=SpyOpt, required=True)\n@click.option(\"--flag\", is_flag=True, cls=SpyOpt)\n@click.option(\"--multi\", multiple=True, cls=SpyOpt)\n@click.option(\"--plain\", cls=SpyOpt)\n@click.argument(\"rest\", nargs=-1, cls=SpyArg)\ndef cli(req, flag, multi, plain, rest):\n click.echo(repr((req, flag, multi, plain, rest)))\n\nr = CliRunner()\nprint(r.invoke(cli, [\"--req\", \"x\"]).output.strip())\nprint(\"cast calls:\", seen)\nr2 = r.invoke(cli, [])\nprint(\"missing required ->\", r2.exit_code, r2.output.strip().splitlines()[-1])\nEOF"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01LyJoMJNrfksPGsDz7ou6r1","text":""}]},{"role":"assistant","text":"Issue 13 is fixed: `type_cast_value` is never called with the internal `UNSET` sentinel any more, so a user's override on a custom `Argument` or `Option` can't see it. All 4 previously failing cases now pass, and the other 7 cases of the two tests already did.\n\n**Cause:** `Parameter.process_value` passed its value straight to `type_cast_value`, and for a parameter nobody supplied that value was `UNSET`. The base implementation, and `Option`'s override, contained branches that only existed to swallow the sentinel. A subclass override got it first.\n\n**Fix** (`src/click/core.py`):\n- **Skip the cast for unset values:** `process_value` no longer calls `type_cast_value` for an unset value. It calls a small private hook, `_resolve_unset()`, and only casts real values.\n- **The hook:** the base hook returns `()` for multi-value parameters (`multiple` or `nargs=-1`) and otherwise keeps `UNSET`, so a required parameter is still reported as missing. `Option` overrides it to return `False` for a non-required boolean flag.\n- **Cleaned up:** `Option.type_cast_value` is removed, since it only existed to turn `UNSET` into `False`. The base `type_cast_value` now checks `value is None` and no longer looks for `UNSET`. I documented that in its docstring and in `process_value`'s.\n- **Changelog:** `CHANGES.md` already says \"When `Sentinel.UNSET` is found during parsing, it will skip calls to `type_cast_value`\" ({issue}`3069`), so the code now matches it.\n\n**Manual check:** I used a spy subclass on a command with a required option, a bool flag, a `multiple` option, a plain option and an `nargs=-1` argument. The only casts it saw were the required `'x'` and the flag's `False`. The plain option, the multiple option and the argument, which were all unset, were skipped. The results were unchanged, `('x', False, (), None, ())`, and omitting the required option still gives `Missing option '--req'` with exit code 2.\n\n**Regression check:** with the pinned suite, the 4 cases went from failing to passing and none newly failed. 21 tests still fail, down from 25.\n\nSend issue 14 when you're ready.","toolUses":[]},{"role":"user","text":"Issue 14 of 20. Feature request.\n\n`echo_via_pager` with a generator shows nothing until the generator is exhausted. Each chunk should reach the pager as it is produced, so that long output starts appearing immediately.\n\nFailing:\n tests/test_termui.py::test_echo_via_pager_streams_each_write","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_014bR1pFkExsdDj768nymZnJ","tool":"Bash","input":{"command":"grep -n \"def echo_via_pager\" -B3 -A75 src/click/termui.py; .venv/bin/python -m pytest tests/test_termui.py -q -p no:randomly -k test_echo_via_pager_streams_each_write 2>&1 | grep -E \"^E|passed|failed\" | head"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_014Ba3VX2KjgcRrjrSBfPYi9","tool":"Bash","input":{"command":"sed -n 940,975p tests/test_termui.py; grep -n \"echo_via_pager\" tests/test_termui.py | head -30; grep -n \"3242\\|2542\" CHANGES.md docs/*.md"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_014bR1pFkExsdDj768nymZnJ","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_014Ba3VX2KjgcRrjrSBfPYi9","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01SnrzxGAUKfueMpkk6kEWgC","tool":"Bash","input":{"command":"sed -n 120,125p CHANGES.md"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01SnrzxGAUKfueMpkk6kEWgC","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01TxVgKThttDiLfA3udUeQ9c","tool":"Edit","input":{"replace_all":false,"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--on--sonnet/src/click/termui.py","old_string":" for text in itertools.chain(text_generator, \"\\n\"):\n pager.write(text)","new_string":" for text in itertools.chain(text_generator, \"\\n\"):\n pager.write(text)\n # Flush each chunk, so that output from a slow generator reaches\n # the pager as it is produced, not when the pipe buffer fills.\n pager.flush()"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01TxVgKThttDiLfA3udUeQ9c","text":""}]},{"role":"assistant","text":"The changelog entry sits at line 122, and I want to confirm which release section that is before I document it in the docstring.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01Cbx7aQZXbzRjh6fFYRTeZj","tool":"Bash","input":{"command":"grep -n \"^## Version\" CHANGES.md | head -4"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01Cbx7aQZXbzRjh6fFYRTeZj","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01W1X8GTvookdKoZB2KEPCAR","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/termui.py\"\ns = open(p).read()\nold = ''' \"\"\"This function takes a text and shows it via an environment specific\n pager on stdout.\n\n .. versionchanged:: 3.0\n Added the `color` flag.\n'''\nnew = ''' \"\"\"This function takes a text and shows it via an environment specific\n pager on stdout.\n\n .. versionchanged:: 8.4.2\n Each write is flushed, so a generator's output reaches the pager as it\n is produced.\n\n .. versionchanged:: 3.0\n Added the `color` flag.\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--on--sonnet/6a805c0c-6d93-4dea-895a-29d0942edcc3/scratchpad; run(){ PYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep '^FAILED' | sed 's/ - .*//' | sort > $1; }; cp $S/after.txt $S/before.txt; run $S/after.txt; wc -l $S/before.txt $S/after.txt | head -2; echo \"--- fixed:\"; comm -23 $S/before.txt $S/after.txt; echo \"--- newly broken:\"; comm -13 $S/before.txt $S/after.txt"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01W1X8GTvookdKoZB2KEPCAR","text":""}]},{"role":"assistant","text":"That notice is again just my own scripted docstring edit. The comparison confirms the code change worked.\n\nIssue 14 is fixed: `echo_via_pager` now flushes after every chunk, so output from a slow generator reaches the pager as it is produced instead of when the pipe buffer fills. `test_echo_via_pager_streams_each_write` passes.\n\n**Cause:** `echo_via_pager` wrote each chunk to the writer returned by `get_pager_file` and never flushed. The pager's stdin is a buffered text stream, so a generator that yields slowly kept its output in that buffer until it filled up or the generator ended.\n\n**Fix** (`src/click/termui.py`): the write loop now calls `pager.flush()` after each `pager.write(text)`. That includes the trailing newline, which the test counts as its fourth write. The flush goes through the existing writer wrapper to the underlying stream, so it works for the pipe pager, the temp-file pager and the plain-stdout fallback. I also added a `versionchanged:: 8.4.2` note to the docstring. That matches where `CHANGES.md` already lists this ({issue}`3242`, {issue}`2542`), so I didn't add a changelog entry.\n\n**Regression check:** with the pinned suite, that one test went from failing to passing and none newly failed. 20 tests still fail, down from 21.\n\nI only changed `echo_via_pager`. A caller who writes to `get_pager_file()` directly still controls their own flushing, since flushing every write there would change behavior for everyone using that writer.\n\nSend issue 15 when you're ready.","toolUses":[]},{"role":"user","text":"Issue 15 of 20. Bug report.\n\n`get_help_option_names` does not preserve the order the help option names were declared in.\n\nFailing:\n tests/test_commands.py::test_get_help_option_names","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01XQPjDZyG9Ux1GB9FCZ8Qn2","tool":"Bash","input":{"command":"grep -n \"def test_get_help_option_names\" -B40 -A20 tests/test_commands.py | head -120; for i in 1 2 3; do .venv/bin/python -m pytest tests/test_commands.py -q -p no:randomly -k test_get_help_option_names 2>&1 | tail -1; done"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01XQPjDZyG9Ux1GB9FCZ8Qn2","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01RMD5r9pYhkaQPJkBSks3a1","tool":"Bash","input":{"command":"grep -n \"def get_help_option_names\" -A8 src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01RMD5r9pYhkaQPJkBSks3a1","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01DUPzDAb3uGwzAvgL9hqMAV","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/core.py\"\ns = open(p).read()\nold = ''' \"\"\"Returns the names for the help option.\"\"\"\n all_names = set(ctx.help_option_names)\n for param in self.params:\n all_names.difference_update(param.opts)\n all_names.difference_update(param.secondary_opts)\n return list(all_names)\n'''\nnew = ''' \"\"\"Returns the names for the help option, without duplicates and without\n the names that another parameter uses, in the order they were declared.\n \"\"\"\n # A dict keeps the declaration order, unlike a set.\n all_names = dict.fromkeys(ctx.help_option_names)\n\n for param in self.params:\n for name in (*param.opts, *param.secondary_opts):\n all_names.pop(name, None)\n\n return list(all_names)\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\nfor seed in 0 1 2 3 random; do PYTHONHASHSEED=$seed .venv/bin/python -m pytest tests/test_commands.py -q -p no:randomly -k test_get_help_option_names 2>&1 | tail -1; done"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01DUPzDAb3uGwzAvgL9hqMAV","text":""}]},{"role":"assistant","text":"It passes on all 13 cases under five different hash seeds, so the order no longer depends on the seed. Now the full comparison.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01HNTsTgGfAMjwZjkyGwDFyb","tool":"Bash","input":{"command":"S=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--on--sonnet/6a805c0c-6d93-4dea-895a-29d0942edcc3/scratchpad; run(){ PYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep '^FAILED' | sed 's/ - .*//' | sort > $1; }; cp $S/after.txt $S/before.txt; run $S/after.txt; wc -l $S/before.txt $S/after.txt | head -2; echo \"--- fixed:\"; comm -23 $S/before.txt $S/after.txt; echo \"--- newly broken:\"; comm -13 $S/before.txt $S/after.txt; echo \"--- unpinned full-suite runs (random seeds and order):\"; for i in 1 2 3; do .venv/bin/python -m pytest -q 2>&1 | tail -1; done"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01HNTsTgGfAMjwZjkyGwDFyb","text":""}]},{"role":"assistant","text":"Issue 15 is fixed: `get_help_option_names` now returns the help option names in the order they were declared. All 13 cases of `test_get_help_option_names` pass.\n\n**Cause:** the method built a `set` from `ctx.help_option_names`, removed the names other parameters use, and returned `list(set)`. A set has no order, and for strings it depends on Python's per-process hash randomization. So `[\"-h\", \"--help\"]` came back as `[\"--help\", \"-h\"]` on some runs and not others. That is why this test showed a different failure count each time I ran the suite at the start of this session.\n\n**Fix** (`src/click/core.py`): the names now go into a `dict` (`dict.fromkeys`), which deduplicates and keeps first-seen order. Names claimed by another parameter's `opts` or `secondary_opts` are then popped out. The result is `list(...)` of the remaining keys.\n\n**Verification:** the 13 cases pass under five different hash seeds, including a random one. I also ran the whole suite three times unpinned, with random seeds and random test order. Each run gave exactly 16 failures, so the flakiness is gone and that count is stable.\n\n**Regression check:** with the pinned suite, 4 cases went from failing to passing and none newly failed. Those were the ones that failed under `PYTHONHASHSEED=0`. 16 tests still fail, down from 20.\n\nSend issue 16 when you're ready.","toolUses":[]},{"role":"user","text":"Issue 16 of 20. Feature request.\n\n**Deprecate `isolated_filesystem()`** (upstream #3700)\n\nNowadays you can use `pytest` directly for this, or `tempfile.TemporaryDirectory()`; it would not be added today, and was added before Python 3 and pytest were in common use. It should emit a deprecation warning, and its limits should be documented.\n\nFailing:\n tests/test_deprecations.py::test_isolated_filesystem_deprecated","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_019dKefKPAg6ak8ceQT5ZiAe","tool":"Bash","input":{"command":"cat tests/test_deprecations.py; grep -n \"isolated_filesystem\" -r src docs tests CHANGES.md | grep -v pyc | head -50"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_019dKefKPAg6ak8ceQT5ZiAe","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01YVVmGoaRc24YxFeXbdJ4pa","tool":"Bash","input":{"command":"sed -n 725,790p src/click/testing.py; grep -rn \"DeprecationWarning\" src/click/*.py | head -20; sed -n 180,200p docs/testing.md; sed -n 64,72p CHANGES.md; sed -n 438,460p tests/test_testing.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01YVVmGoaRc24YxFeXbdJ4pa","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01JmJ6juZoBXksJE5rz5Gj2K","tool":"Bash","input":{"command":"sed -n 675,700p src/click/utils.py; sed -n 78,100p src/click/__init__.py; sed -n 540,556p src/click/core.py; sed -n 3810,3830p src/click/core.py; sed -n 1,40p src/click/testing.py | grep -n \"import\"; sed -n 10,20p docs/upgrade-guides.md | cut -c1-200; sed -n 155,200p docs/testing.md"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01JmJ6juZoBXksJE5rz5Gj2K","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01AkFv9uzWfp2WP2Ppxb1emH","tool":"Bash","input":{"command":"sed -n 36,50p docs/handling-files.md; grep -rn \"isolated_filesystem\" docs/conf.py docs/_static 2>/dev/null | head; grep -rn \"isolated_filesystem\" src/click/ | grep -v pyc"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01AkFv9uzWfp2WP2Ppxb1emH","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_017QkqYbFToTGasgxwVUv4C4","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/testing.py\"\ns = open(p).read()\nold = ''' \"\"\"A context manager that creates a temporary directory and\n changes the current working directory to it. This isolates tests\n that affect the contents of the CWD to prevent them from\n interfering with each other.\n\n :param temp_dir: Create the temporary directory under this\n directory. If given, the created directory is not removed\n when exiting.\n\n .. versionchanged:: 8.0\n Added the ``temp_dir`` parameter.\n \"\"\"\n cwd = os.getcwd()\n'''\nnew = ''' \"\"\"A context manager that creates a temporary directory and\n changes the current working directory to it. This isolates tests\n that affect the contents of the CWD to prevent them from\n interfering with each other.\n\n This changes the working directory with :func:`os.chdir`, which is\n process-global state: it is not thread-safe, and it does not isolate\n anything else, such as the environment or files outside the\n directory. Use a temporary directory instead, like\n :class:`tempfile.TemporaryDirectory` or pytest's ``tmp_path``\n fixture, and pass absolute paths to the command.\n\n :param temp_dir: Create the temporary directory under this\n directory. If given, the created directory is not removed\n when exiting.\n\n .. deprecated:: 8.5.0\n Will be removed in Click 9.0.\n\n .. versionchanged:: 8.0\n Added the ``temp_dir`` parameter.\n \"\"\"\n import warnings\n\n # Level 3, because the generator body runs from ``__enter__``.\n warnings.warn(\n \"'isolated_filesystem' is deprecated and will be removed in Click 9.0.\"\n \" Use a temporary directory, such as pytest's 'tmp_path' fixture or\"\n \" 'tempfile.TemporaryDirectory', and pass absolute paths instead.\",\n DeprecationWarning,\n stacklevel=3,\n )\n cwd = os.getcwd()\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\n.venv/bin/python -m pytest tests/test_deprecations.py tests/test_testing.py -q -p no:randomly 2>&1 | tail -3\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--on--sonnet/6a805c0c-6d93-4dea-895a-29d0942edcc3/scratchpad; run(){ PYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep '^FAILED' | sed 's/ - .*//' | sort > $1; }; cp $S/after.txt $S/before.txt; run $S/after.txt; wc -l $S/before.txt $S/after.txt | head -2; echo \"--- fixed:\"; comm -23 $S/before.txt $S/after.txt; echo \"--- newly broken:\"; comm -13 $S/before.txt $S/after.txt"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_017QkqYbFToTGasgxwVUv4C4","text":""}]},{"role":"assistant","text":"I'm confirming the warning is attributed to the caller's line rather than to click's internals, and that the two existing `isolated_filesystem` tests still pass with their filters.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_013N4kZZb7u9yVhxqEVfQYhM","tool":"Bash","input":{"command":"cat > /private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--on--sonnet/6a805c0c-6d93-4dea-895a-29d0942edcc3/scratchpad/caller.py <<'EOF'\nimport warnings\nfrom click.testing import CliRunner\n\nwith warnings.catch_warnings(record=True) as w:\n warnings.simplefilter(\"always\")\n with CliRunner().isolated_filesystem() as d: # line 6\n pass\n\n(rec,) = w\nprint(rec.category.__name__, \"| attributed to\", rec.filename.rsplit(\"/\", 1)[-1], \"line\", rec.lineno)\nprint(str(rec.message))\nEOF\n.venv/bin/python /private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--on--sonnet/6a805c0c-6d93-4dea-895a-29d0942edcc3/scratchpad/caller.py; .venv/bin/python -m pytest tests/test_testing.py -q -p no:randomly -k \"isolated_runner or tempdir_replacement or thread\" 2>&1 | tail -2"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_013N4kZZb7u9yVhxqEVfQYhM","text":""}]},{"role":"assistant","text":"Issue 16 is done: `CliRunner.isolated_filesystem()` now emits a `DeprecationWarning`, and its limits are documented in the docstring. `test_isolated_filesystem_deprecated` passes.\n\n**What I changed** (`src/click/testing.py`):\n- **Warning:** the method emits `'isolated_filesystem' is deprecated and will be removed in Click 9.0. Use a temporary directory, such as pytest's 'tmp_path' fixture or 'tempfile.TemporaryDirectory', and pass absolute paths instead.` This follows the wording of the other deprecations in the codebase. It also starts with the quoted name, which is what the existing `@pytest.mark.filterwarnings(\"ignore:'isolated_filesystem':DeprecationWarning\")` markers in `test_testing.py` match on.\n- **Where the warning points:** it fires when the `with` block is entered, and I set `stacklevel=3` for the wrapper frames. A scratch script confirmed it is attributed to the caller's own `with` line, not to click's internals.\n- **Docstring:** it states the limits, plus a `.. deprecated:: 8.5.0` note. The method changes the working directory with `os.chdir`, which is process-global and not thread-safe. It also doesn't isolate anything else, such as the environment or files outside the directory. The docstring points to `tempfile.TemporaryDirectory` or pytest's `tmp_path` with absolute paths. The wording matches the existing `docs/testing.md` and `upgrade-guides.md` text.\n- **Not changed:** the docs, `CHANGES.md` and the upgrade guide already describe this deprecation. Behavior of the method itself is unchanged, and the existing `isolated_runner` tests still pass with their filters.\n\n**Regression check:** with the pinned suite, that one test went from failing to passing and none newly failed. 15 tests still fail, down from 16.\n\nThe `isolated_filesystem()` calls in `docs/handling-files.md` and `docs/arguments.md` come from the external Sphinx `click:run` extension, not this class. I left them alone, so they don't trigger the warning.\n\nSend issue 17 when you're ready.","toolUses":[]},{"role":"user","text":"Issue 17 of 20. Feature request.\n\nThe progress bar should be able to show the item currently being processed, through `item_show_func`. The failing test shows the expected behaviour.\n\nFailing:\n tests/test_termui.py::test_progressbar_item_show_func","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01CKuiK49gNANqZP1JpcuBU4","tool":"Bash","input":{"command":"grep -n \"def test_progressbar_item_show_func\" -B5 -A40 tests/test_termui.py; .venv/bin/python -m pytest tests/test_termui.py -q -p no:randomly -k test_progressbar_item_show_func 2>&1 | grep -E \"^E\" | head -20"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01CKuiK49gNANqZP1JpcuBU4","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01YLSqAgJBtqeWDGkkNR431P","tool":"Bash","input":{"command":"grep -n \"item_show_func\" CHANGES.md docs/*.md | head; grep -n \"item_show_func\" -B2 -A6 src/click/termui.py | sed -n 1,60p"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01YLSqAgJBtqeWDGkkNR431P","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01CQxp6aqUaoeXfWQS2Et8zZ","tool":"Edit","input":{"replace_all":false,"file_path":"~/.cache/taskcut-eval/workspaces/issues-long--on--sonnet/src/click/_termui_impl.py","old_string":" for rv in self.iter:\n self.current_item = rv\n yield rv","new_string":" for rv in self.iter:\n self.current_item = rv\n\n # Let ``item_show_func`` show the item before it is processed,\n # not the previous one. Only render at the start of an update\n # interval, so ``update_min_steps`` still limits the redraws.\n if self._completed_intervals == 0:\n self.render_progress()\n\n yield rv"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01CQxp6aqUaoeXfWQS2Et8zZ","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01CxFfjXEHLkoCVve9LJFEB4","tool":"Bash","input":{"command":".venv/bin/python -m pytest tests/test_termui.py -q -p no:randomly -k \"progress\" 2>&1 | tail -3; S=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--on--sonnet/6a805c0c-6d93-4dea-895a-29d0942edcc3/scratchpad; run(){ PYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep '^FAILED' | sed 's/ - .*//' | sort > $1; }; cp $S/after.txt $S/before.txt; run $S/after.txt; wc -l $S/before.txt $S/after.txt | head -2; echo \"--- fixed:\"; comm -23 $S/before.txt $S/after.txt; echo \"--- newly broken:\"; comm -13 $S/before.txt $S/after.txt"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01CxFfjXEHLkoCVve9LJFEB4","text":""}]},{"role":"assistant","text":"All 49 progress-bar tests pass and nothing else changed. I'll also check that the extra render respects `update_min_steps`, since that's why I gated it.","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01DWKDw4DyqFtVCNLEBSCrAA","tool":"Bash","input":{"command":".venv/bin/python -W error - <<'EOF'\nimport io, re\nimport click, click._termui_impl as impl\nimpl.isatty = lambda _: True\n\ndef shown(min_steps, n=9):\n s = io.StringIO()\n with click.progressbar(range(n), item_show_func=lambda x: f\"<{x}>\", update_min_steps=min_steps, file=s) as bar:\n for _ in bar: pass\n return re.findall(r\"<(\\w+)>\", s.getvalue()), bar.pos, bar.finished\n\nfor m in (1, 3, 20):\n items, pos, fin = shown(m)\n print(f\"update_min_steps={m:>2}: items rendered {items} | final pos {pos} finished {fin}\")\nEOF"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01DWKDw4DyqFtVCNLEBSCrAA","text":""}]},{"role":"assistant","text":"Issue 17 is fixed: `item_show_func` now shows the item being processed, not the previous one. `test_progressbar_item_show_func` passes, along with all 49 progress-bar tests.\n\n**Cause:** when you iterate a bar, `generator()` set `current_item` and yielded the item, but only redrew after `update(1)`, once the item was done. The bar showed `None` before the first item. After that, each redraw still held the item that had just finished, so `item_show_func` ran one step behind. `CHANGES.md` (line 1041) already documents that it should show the current item.\n\n**Fix** (`src/click/_termui_impl.py`): in `generator()`, `render_progress()` now runs right after `current_item` is set and before the item is yielded. It only runs when no steps are pending, meaning at the start of an update interval. So `update_min_steps` still limits how often the bar redraws.\n\nI checked that gating on 9 items, listing the items shown across all renders:\n\n| `update_min_steps` | Items shown |\n|---|---|\n| 1 | every item, twice each: 0, 0, 1, 1, … |\n| 3 | 0, 2, 3, 5, 6, 8 |\n| 20 | 0 only, plus the initial and final renders showing `None` |\n\nPosition still ends at 9 and the bar still finishes in every case, so the final-position fix from issue 9 holds.\n\n**Regression check:** with the pinned suite, that one test went from failing to passing and none newly failed. 14 tests still fail, down from 15.\n\nThe `item_show_func` docstring already says the item can be `None`. That is still true for the initial render and the final render after `finish()`, so I didn't change it.\n\nSend issue 18 when you're ready.","toolUses":[]},{"role":"user","text":"Issue 18 of 20. Bug report.\n\nA deprecated command with empty help renders its deprecation label with a stray leading space.\n\nFailing:\n tests/test_commands.py::test_deprecated_empty_help_no_leading_space\n tests/test_options.py::test_deprecated_empty_help_no_leading_space","toolUses":[]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01865fijm2LWhaEfLhsSRr4u","tool":"Bash","input":{"command":"grep -n \"def test_deprecated_empty_help_no_leading_space\" -B22 -A14 tests/test_commands.py; grep -n \"def test_deprecated_empty_help_no_leading_space\" -B22 -A14 tests/test_options.py; .venv/bin/python -m pytest tests/test_commands.py tests/test_options.py -q -p no:randomly -k test_deprecated_empty_help_no_leading_space 2>&1 | grep -E \"^E|FAILED|passed|failed\" | head -30"}}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01PR4fVK8g6TssZkr1ziCUyD","tool":"Bash","input":{"command":"sed -n 128,160p src/click/core.py; grep -n \"_format_deprecated_label\\|_format_deprecated_suffix\\|DEPRECATED\" src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01865fijm2LWhaEfLhsSRr4u","text":""}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01PR4fVK8g6TssZkr1ziCUyD","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_0189cjikzfn9cKgxpyQoUb7d","tool":"Bash","input":{"command":"sed -n 1280,1335p src/click/core.py; sed -n 3010,3035p src/click/core.py; sed -n 3725,3750p src/click/core.py"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_0189cjikzfn9cKgxpyQoUb7d","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_017vh91mGdzWcASaVG4kXWNb","tool":"Bash","input":{"command":"python3 - <<'EOF'\np = \"src/click/core.py\"\ns = open(p).read()\n\nold = '''def _format_deprecated_suffix(deprecated: bool | str) -> str:'''\nnew = '''def _append_deprecated_label(text: str | None, deprecated: bool | str) -> str:\n \"\"\"Return ``text`` followed by the deprecation label, or the label alone if\n there is no text to follow, so that it never starts with a stray space.\n \"\"\"\n label = _format_deprecated_label(deprecated)\n return f\"{text} {label}\" if text else label\n\n\ndef _format_deprecated_suffix(deprecated: bool | str) -> str:'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\n# Command.get_short_help_str and Command.format_help_text (two identical lines)\nold = ''' text = f\"{_(text)} {_format_deprecated_label(self.deprecated)}\"'''\nnew = ''' text = _append_deprecated_label(_(text), self.deprecated)'''\nassert s.count(old) == 2\ns = s.replace(old, new)\n\n# Option\nold = ''' if deprecated:\n label = _format_deprecated_label(deprecated)\n help = f\"{help} {label}\" if help is not None else label\n'''\nnew = ''' if deprecated:\n help = _append_deprecated_label(help, deprecated)\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\n\n# Argument\nold = ''' if deprecated:\n label = _format_deprecated_label(deprecated)\n help = f\"{help} {label}\" if help else label\n'''\nnew = ''' if deprecated:\n help = _append_deprecated_label(help, deprecated)\n'''\nassert s.count(old) == 1\ns = s.replace(old, new, 1)\nopen(p, \"w\").write(s)\nEOF\n.venv/bin/python -m pytest tests/test_commands.py tests/test_options.py tests/test_arguments.py -q -p no:randomly -k \"deprecated\" 2>&1 | tail -3\nS=/private/tmp/claude-501/-~--cache-taskcut-eval-workspaces-issues-long--on--sonnet/6a805c0c-6d93-4dea-895a-29d0942edcc3/scratchpad; run(){ PYTHONHASHSEED=0 .venv/bin/python -m pytest -q -p no:randomly 2>&1 | grep '^FAILED' | sed 's/ - .*//' | sort > $1; }; cp $S/after.txt $S/before.txt; run $S/after.txt; wc -l $S/before.txt $S/after.txt | head -2; echo \"--- fixed:\"; comm -23 $S/before.txt $S/after.txt; echo \"--- newly broken:\"; comm -13 $S/before.txt $S/after.txt"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_017vh91mGdzWcASaVG4kXWNb","text":""}]},{"role":"assistant","text":"","toolUses":[{"tool_use_id":"toolu_01NzLNcALd8MAUstq6TAN5o5","tool":"Bash","input":{"command":".venv/bin/python -W error - <<'EOF'\nimport click\nfrom click.testing import CliRunner\n\n@click.group()\ndef cli(): pass\n\n@cli.command(deprecated=True)\ndef bare(): pass\n\n@cli.command(deprecated=\"use x\", help=\"Does a thing.\")\ndef described(): pass\n\nprint(CliRunner().invoke(cli, [\"--help\"]).output)\nprint(repr(bare.get_short_help_str()), \"|\", repr(described.get_short_help_str()))\nfor h in (None, \"\", \"Real help\"):\n print(repr(h), \"->\", repr(click.Option([\"--foo\"], help=h, deprecated=True).help), \"|\", repr(click.Argument([\"f\"], help=h, required=False, deprecated=True).help))\nEOF"}}]},{"role":"user","text":"","toolUses":[],"toolResults":[{"tool_use_id":"toolu_01NzLNcALd8MAUstq6TAN5o5","text":""}]},{"role":"assistant","text":"Issue 18 is fixed: a deprecated command, option or argument with empty or missing help no longer gets a stray leading space before `(DEPRECATED…)`. All 6 failing cases pass, 4 in `test_commands.py` and 2 in `test_options.py`.\n\n**Cause:** the deprecation label was attached with `f\"{text} {label}\"`, without checking whether `text` was empty.\n- **`Command.format_help_text`:** empty help became `\" (DEPRECATED)\"`, which rendered as three spaces of indent instead of two.\n- **`Option.__init__`:** it only checked `help is not None`, so `help=\"\"` got a leading space. That is what the options test reads back from `get_help_record`.\n- **`Command.get_short_help_str`:** it had the same bug but hid it behind a final `.strip()`.\n- **`Argument.__init__`:** it already handled the empty case correctly.\n\n**Fix** (`src/click/core.py`): one small helper, `_append_deprecated_label(text, deprecated)`, returns `\"