diff --git a/issue-996-regression.md b/issue-996-regression.md
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-## Summary
-
-`next` is currently **red** across the full-test matrix (macOS 22/24, Windows 22) and the ubuntu-24 coverage leg. Root-caused to commit `88e30d53` (PR #996, which closed #969 "fix stale-build flake"). The commit right before it (`d617735b`) was green.
-
-## Root cause
-
-`#996` did two things that interact badly with the **concurrent** `node --test` runner:
-
-1. Added `tests/bug-969-test-infra-flake-hardening.test.cjs` whose two destructive tests `fs.unlinkSync` the **real shared** `gsd-core/bin/lib/core.cjs` (and the real build tsbuildinfo) mid-run, rebuilding/restoring in `finally`. Because `node --test` runs files concurrently, any other test that `require`s `core.cjs` during that window fails with `Cannot find module .../gsd-core/bin/lib/core.cjs`. This is a textbook **real-race test** (forbidden by `RULESET.TESTS.delete-bad-tests`).
-2. Set `tsBuildInfoFile: "gsd-core/bin/tsconfig.build.tsbuildinfo"` — placing mutable build state **inside `gsd-core/bin/`**, a directory install tests copy recursively via `fs.cpSync`. A concurrent rebuild writing/unlinking that file races the copy → `copyfile ENOENT`.
-
-Symptom: ~40–50 tests fail per leg with `MODULE_NOT_FOUND`/`ENOENT`; leg-asymmetric (timing-sensitive). Reproduced locally on the first iteration of running the bug-969 test concurrently with `state.test.cjs` + `install.test.cjs`.
-
-## Impact
-
-`next` red ⇒ branch protection blocks **all** PRs from merging (Required tests fails).
-
-## Fix (fix-forward)
-
-- Make the two destructive `bug-969` tests **hermetic** — exercise a parameterized `ensureBuiltArtifacts(overrides)` against a throwaway temp TS project; never touch real `gsd-core/bin/lib`.
-- Move `tsconfig.build.tsbuildinfo` **out of `gsd-core/bin/`** to the repo root (gitignored); self-heal stale bin-local copies on persistent workspaces.
-
-## Verification
-
-- 10× concurrent race check clean (was iter-1 repro before).
-- Full unit suite: 4775 pass / 0 fail through the modified runner.
diff --git a/pr-1001-body.md b/pr-1001-body.md
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-## Fix PR
-
-## Linked Issue
-
-Fixes #1001
-
-The linked issue carries the `confirmed-bug` label.
-
-## What was broken
-
-`next` went red across the full-test matrix (macOS 22/24, Windows 22) and the ubuntu-24 coverage leg — `Required tests` failing, blocking **all** PRs from merging. Root-caused to `88e30d53` (PR #996, which closed #969). The commit immediately before it on `next` (`d617735b`) was green.
-
-## Root cause
-
-`#996` interacts badly with the concurrent `node --test` runner:
-
-1. `tests/bug-969-test-infra-flake-hardening.test.cjs` had two tests that `fs.unlinkSync` the **real shared** `gsd-core/bin/lib/core.cjs` (and the real build tsbuildinfo) mid-run, restoring in `finally`. Files run concurrently, so any other test requiring `core.cjs` in that window fails with `Cannot find module .../gsd-core/bin/lib/core.cjs` — a **real-race test** (`RULESET.TESTS.delete-bad-tests`).
-2. `tsBuildInfoFile` was placed at `gsd-core/bin/tsconfig.build.tsbuildinfo` — mutable build state **inside** the `gsd-core/bin/` tree that install tests copy recursively (`fs.cpSync`). A concurrent rebuild writing/unlinking it races the copy → `copyfile ENOENT`.
-
-Reproduced locally on the first concurrent iteration of the bug-969 test + `state.test.cjs` + `install.test.cjs`.
-
-## The fix
-
-- **Hermetic tests:** `ensureBuiltArtifacts()` is now `ensureBuiltArtifacts(overrides = {})` (root/srcDir/outDir/tsBuildInfoPath/tsconfigPath overridable; production no-arg behavior unchanged). The bug-969 destructive tests (and the sentinel test) now build/delete/re-emit inside a throwaway temp TS project — they never touch real `gsd-core/bin/lib`.
-- **Relocated build state:** `tsconfig.build.tsbuildinfo` moved to the repo root (gitignored), out of the copied/shipped tree. `ensureBuiltArtifacts` best-effort-purges any stale `gsd-core/bin/tsconfig.build.tsbuildinfo` so persistent workspaces/mirrors self-heal.
-
-## Testing
-
-- Regression reproduced on broken code (iter 1); **10× concurrent race check clean** after the fix.
-- Full unit suite through the modified runner: **4775 pass / 0 fail**.
-- `bug-969` suite 6/6; eslint + `lint-command-contract` clean.
-- Independent codex adversarial review (findings — legacy-purge, sentinel hermeticity — folded in).
-
-## Checklist
-
-- [x] Linked issue carries `confirmed-bug`
-- [x] Branch `fix/1001-bug969-real-race`
-- [x] Conventional commits
-- [x] Changeset fragment (`type: Fixed`)
-- [x] Regression test made hermetic + fail-first reproduced