test(scripts): pin the prerequisite exit code and advisory in the three i18n gates - #15181

Fixes #14857

The three i18n gates answered PREREQUISITE NOT MET with an exit code and an advisory that names it, and pinned neither — while the four sibling gates that answer the same words pin both. Each printer built its string inline inside console.error(...) with process.exit(...) on the next line, so there was no value a test could read: the number PR #14856 moved from 1 to 3 was held in place here by nothing.

This extracts each refusal printer into a pure text function (the shape scripts/import-prerequisite.mjs already uses) and asserts, from each gate's own --self-test, the value that moved. No gate resisted — in all three the shape change stayed inside the printer and its call site, exactly the fence triage drew.

The success lines are updated in the same stroke: all three previously advertised only their classifiers, which is the reading triage kept — a pass line that overstates its own scope stops anyone looking.

Per gate

What each gate now asserts, per refusal path:

• the prerequisite class is 3, and is distinct from EXIT_FINDINGS and from 0;
• the refusal exits through the named constant, never a literal (pinned over the function body, not the constant — the regression that costs something is a process.exit(1) written back in, which leaves the constant reading 3 and every consumer green);
• the printer prints the pinned text function — the seam without which an advisory pinned here is worthless;
• the advisory interpolates the code rather than spelling one, names both numbers, carries no stale Exit code 1, and still states that nothing was measured.

Each gate also carries negative controls: every predicate is run against a function that does the forbidden thing and must see it, so a typo in either regex cannot pass forever.

⭐ COULD NOT MEASURE and POPULATION EMPTY sit behind the CLI-build probe — no local run and no other test observes them at all, so for those two these cases are the only observer. They were done first.

Rosters (#13799 b2 floors raised)

Each new battery's floor was measured through the gate's own floor machinery (pin the battery at 999, read the count it names back), not counted by hand. Every new assertion registers through the existing registerCase() helper inside a declared battery; each file's verdict handshake is untouched (SELF_TEST_VERDICT sentinel in both rostered gates; the app-nav gate has none of the three spellings and did not grow one here).

Verification

All of it on 2745a1716, with every exit code captured by redirect before any pipe. Exit 3 is read as NOT MEASURED, never as a pass.

Self-tests — check-i18n-coverage ✓, check-i18n-bundles ✓, check-app-nav-i18n ✓ (exit 0 each).

Normal mode, live. On the unbuilt worktree all three refused with the real code: pnpm check:i18n-coverage → exit 3, pnpm check:i18n → exit 3, node packages/cli/scripts/check-app-nav-i18n.mjs → exit 3, each printing Exit code 3, distinct from a finding's 1. That is 3 of the 5 paths observed live; the other two are the build-probe pair the pins now cover. The app-nav refusal is byte-identical before and after the extraction (diff of the two captured runs is empty) — the strongest available evidence that the extraction moved no text. After pnpm build (under the shared verify lock, 72/72 tasks) all three reach a real verdict: coverage OK (13 configs, 691 baselined), bundles OK (9 packages in sync), app-nav OK (10 contributors, 54 nav ids, 4 locales).

Ablation, 7 cases, one per pin class per gate. Each mutation is proven on disk by an exact substring count (anchor → 0, injected → n) and each restore by git hash-object equality against the HEAD blob plus an empty git diff HEAD — never by an editor's or a checkout's exit code; the harness restores under a trap and aborts loudly rather than letting a later measurement run on a mutated tree. These gates are plain .mjs scripts executed directly by node, with no dist/ between the edit and the run, so no rebuild leg applies.

• exit code 3 → literal 1, in each of the three gates → self-test red, naming the refusal exits through the named constant, never a literal; restored → green.
• advisory number corrupted to a spelled-out Exit code 1, in each of the three gates → self-test red, naming all three advisory pins (interpolates / names both numbers / no stale spelling); restored → green.
• the seam: reportUnmeasuredConfigs stops printing unmeasuredConfigsText → self-test red, naming the printer prints the pinned text function; restored → green.

An earlier harness attempt is worth recording: its first run reported MUTATION ON DISK: anchor hits 1629 -> 1629 because grep -c -F counts LINES for a multi-line anchor, so its landing check was meaningless. The green self-test that followed is what caught it, and group A was re-run under exact-substring proof afterwards. Nothing was reported from the run that did not land.

Derived family — node scripts/pm/dispatch-gates.mjs --commands --repo objectstack-ai/objectstack (derived from git at 2745a1716, 3 paths, three-dot semantics): 42 commands, all run, all green. pnpm check:dual-build-cjs-loads first returned exit 3 (NOT MEASURED, no build); after the build it measures and passes.

Always-runs tail — check:pm-dispatch-gates ✓ (1343 cases), check:self-test-wired ✓, check-self-test-workflow-commands ✓ (no pnpm alias; run as node scripts/check-self-test-workflow-commands.mjs, plus its --self-test), check:declared-population-live ✓, check:ratchet-remedy-authority ✓, check:nul-bytes ✓. Plus app-nav-translation-parity.test.ts (the one sibling suite that names a touched gate, in comments) — 24/24.

Control bytes — grep -naP '[\x00-\x08\x0b\x0c\x0e-\x1f\x7f]' over all three edited files: no match. Same scan over every body posted from this task.

skip-changeset: the diff publishes nothing. scripts/** ships in no package, and packages/cli/scripts/** is outside @objectstack/cli's files (dist, README.md, CHANGELOG.md).

Written by Claude Code in session session_012zGPuVVX3deAx9LdjK8jCk, dispatched by the domain:devx PM seat (claim comment 5535910063).

Generated by Claude Code