diff --git a/docs/ROADMAP.md b/docs/ROADMAP.md
index 2103b87..1f0ab67 100644
--- a/docs/ROADMAP.md
+++ b/docs/ROADMAP.md
@@ -35,6 +35,15 @@ regardless of what it does.
   test-scaffold, gate-check). All 8 pre-fetch probes and the hook verified in
   bash+zsh across tunes_protocol/gittunes/unrelated contexts, including
   workspace-edition detection; hook script shellcheck-clean under the new CI job.
+- **`go-tools` blind validation (#11)** — v0.3.1: all five skills validated blind
+  per house standard 5, 10/10 runs (hit context go-performance-starter@50a8fee +
+  non-starter miss context each). All pinned criteria met: scaffolds compiled and
+  passed `task ci`, gates reported verbatim matching an independently pinned run,
+  miss contexts stopped on the pre-fetch fallbacks with zero invented tooling.
+  The pr-description hit run's ADR step caught a real ADR-027 contradiction the
+  probe branch accidentally seeded — an unplanned true positive. Three doc gaps
+  found and fixed (stale `IsHTMXRequest` reference, sibling-test-coverage check,
+  hardcoded `git diff main` on a master-based starter).
 
 ## Later — worth doing, not yet urgent
 
@@ -47,13 +56,13 @@ Deferred and found work now lives in the issue tracker: decisions
 ([#4](https://github.com/clownware/plugins/issues/4) Bash-grant experiment),
 test debt ([#5](https://github.com/clownware/plugins/issues/5) fixture
 persistence/realism, [#6](https://github.com/clownware/plugins/issues/6)
-unvalidated coverage paths), pezza follow-ups
+unvalidated coverage paths), and pezza follow-ups
 ([#7](https://github.com/clownware/plugins/issues/7) generated-file fixes,
-[#8](https://github.com/clownware/plugins/issues/8) brand fonts), and
-validation follow-through ([#11](https://github.com/clownware/plugins/issues/11)
-go-tools blind validation). Resolved 2026-08-12: #2 (renamed the stack variants
+[#8](https://github.com/clownware/plugins/issues/8) brand fonts).
+Resolved 2026-08-12: #2 (renamed the stack variants
 to `astro-pr-description`/`go-pr-description`), #3 (dropped the `license`
-frontmatter; repo LICENSE governs), #9 (added the `ink-350` ramp step).
+frontmatter; repo LICENSE governs), #9 (added the `ink-350` ramp step),
+#11 (go-tools blind validation — see Graduated).
 Summaries below for the decisions; the issues are canonical.
 
 - **`Bash` in `allowed-tools` for pre-fetch-only skills** — possibly removable where
diff --git a/plugins/go-tools/.claude-plugin/plugin.json b/plugins/go-tools/.claude-plugin/plugin.json
index aa4e22d..1d9dc42 100644
--- a/plugins/go-tools/.claude-plugin/plugin.json
+++ b/plugins/go-tools/.claude-plugin/plugin.json
@@ -1,7 +1,7 @@
 {
   "name": "clownware-go-tools",
   "description": "Go + templ + sqlc stack skills: templ component scaffolding, table-driven test scaffolding, sqlc query scaffolding, performance-budget gate checks, and task-ci-aware PR descriptions, following go-performance-starter conventions with fallbacks for other Go projects. Also ships a format-on-edit hook that runs goimports/gofmt and templ fmt on files Claude edits.",
-  "version": "0.3.0",
+  "version": "0.3.1",
   "hooks": "./hooks/hooks.json",
   "author": {
     "name": "clownware"
diff --git a/plugins/go-tools/skills/perf-budget-check/SKILL.md b/plugins/go-tools/skills/perf-budget-check/SKILL.md
index 262e68a..0dda16e 100644
--- a/plugins/go-tools/skills/perf-budget-check/SKILL.md
+++ b/plugins/go-tools/skills/perf-budget-check/SKILL.md
@@ -40,11 +40,11 @@ Run `task test:performance` (binary size + gzipped asset budgets + the `internal
 
 ### 3. Attribute any overage
 
-For a binary overage, the usual movers are a heavy new dependency or dropped `-ldflags="-s -w"` — check `go build` flags and recent `go.mod` additions (`git diff main -- go.mod`). For an asset overage, identify the largest gzipped contributor under the built CSS/JS output. State the basis in every number: binary is raw stripped bytes; JS/CSS budgets are **gzipped** — never mix the two.
+For a binary overage, the usual movers are a heavy new dependency or dropped `-ldflags="-s -w"` — check `go build` flags and recent `go.mod` additions (`git diff <base> -- go.mod`, base = main or master, whichever the repo uses). For an asset overage, identify the largest gzipped contributor under the built CSS/JS output. State the basis in every number: binary is raw stripped bytes; JS/CSS budgets are **gzipped** — never mix the two.
 
 ### 4. Report
 
-Compact and decision-shaped: **verdict line** (all gates green / N failing) → per-gate table (gate, verdict, actual vs limit, headroom) → what on this branch moved the numbers (`git diff main --stat` when main is local) → next actions, separating "shrink the artifact" from "raise the budget". A budget raise is an ADR-000 change and a halt-worthy decision under this repo's constitution — present it as a decision needing a written why, not a quick edit.
+Compact and decision-shaped: **verdict line** (all gates green / N failing) → per-gate table (gate, verdict, actual vs limit, headroom) → what on this branch moved the numbers (`git diff <base> --stat` when the base branch — main or master — is local) → next actions, separating "shrink the artifact" from "raise the budget". A budget raise is an ADR-000 change and a halt-worthy decision under this repo's constitution — present it as a decision needing a written why, not a quick edit.
 
 ## Rules
 
diff --git a/plugins/go-tools/skills/templ-component-scaffold/SKILL.md b/plugins/go-tools/skills/templ-component-scaffold/SKILL.md
index f9c02aa..1718029 100644
--- a/plugins/go-tools/skills/templ-component-scaffold/SKILL.md
+++ b/plugins/go-tools/skills/templ-component-scaffold/SKILL.md
@@ -18,7 +18,7 @@ Scaffold a new templ view for this project: $ARGUMENTS
 ## Before scaffolding
 
 1. Read one existing example of the kind you are creating (from the pre-fetched list) to match style.
-2. Read `internal/view/props.go` (`BaseProps`, `NewBaseProps`) and `internal/view/render.go` (`Render`, `IsHTMXRequest`).
+2. Read `internal/view/props.go` (`BaseProps`, `NewBaseProps`) and `internal/view/render.go` for the helpers this repo actually ships (`Render` at minimum; an HTMX-request helper may or may not exist — never reference one that isn't there).
 
 ## Decide the kind
 
@@ -42,5 +42,5 @@ If the pre-fetched layout differs from this table, follow the existing layout in
 
 1. Add the props struct to `internal/view/props.go` (or alongside the component) with concrete fields.
 2. Run the templ generate step from the pre-fetched context to produce the `*_templ.go`. Never hand-edit generated files.
-3. If it's a page, wire the handler to call `view.Render(w, r, status, pages.Foo(props))`, branching on `view.IsHTMXRequest(r)` when a partial variant exists.
+3. If it's a page, wire the handler to call `view.Render(w, r, status, pages.Foo(props))`, branching on the repo's HTMX-request helper (only if `render.go` ships one) when a partial variant exists.
 4. Run `task ci` before claiming done (falls back to `go build ./... && go test ./...` if there is no Taskfile).
diff --git a/plugins/go-tools/skills/test-scaffold/SKILL.md b/plugins/go-tools/skills/test-scaffold/SKILL.md
index 7ac9274..8b2c73a 100644
--- a/plugins/go-tools/skills/test-scaffold/SKILL.md
+++ b/plugins/go-tools/skills/test-scaffold/SKILL.md
@@ -31,7 +31,7 @@ Read ONE existing `_test.go` from the pre-fetched list (prefer one in or near th
 
 ### 3. Determine the test file location
 
-Go requires the test beside the source: `path/to/foo.go` → `path/to/foo_test.go`. If it already exists, read it and only add missing cases — never overwrite.
+Go requires the test beside the source: `path/to/foo.go` → `path/to/foo_test.go`. If it already exists, read it and only add missing cases — never overwrite. Also grep the package's *other* `_test.go` files for existing `Test<Func>` coverage of the target's functions — sibling test files sometimes already cover them; report that instead of stubbing duplicates.
 
 ### 4. Generate the table-driven test