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MAESTRO: Fix CLAUDE.md race condition from PR #974 - skip folders with active CLAUDE.md edits

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Prevents "file modified since read" errors when Claude Code is actively editing
a CLAUDE.md file by detecting CLAUDE.md paths in observation file lists and
skipping those folders during updates. Closes #859. Credit: @cheapsteak.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Alex Newman
2026-02-05 23:57:32 -05:00
parent 20333e6214
commit 15e9473533
4 changed files with 204 additions and 51 deletions
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Auto Run Docs/PR-Triage/PR-Triage-07.md
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@@ -22,7 +22,8 @@ These PRs all touch `src/cli/handlers/session-init.ts` — review together to av
These all modify `src/utils/claude-md-utils.ts` — review together.
- [ ] Review PR #974 (`fix: prevent race condition when editing CLAUDE.md (#859)` by @cheapsteak). Files: `src/utils/claude-md-utils.ts`, tests. Race condition where concurrent edits corrupt CLAUDE.md. Steps: (1) `gh pr checkout 974` (2) Review locking/atomic write approach (3) Check test coverage (4) Run `npm run build` (5) If clean: `gh pr merge 974 --rebase --delete-branch`
- [x] Review PR #974 (`fix: prevent race condition when editing CLAUDE.md (#859)` by @cheapsteak). Files: `src/utils/claude-md-utils.ts`, tests. Race condition where concurrent edits corrupt CLAUDE.md. Steps: (1) `gh pr checkout 974` (2) Review locking/atomic write approach (3) Check test coverage (4) Run `npm run build` (5) If clean: `gh pr merge 974 --rebase --delete-branch`
- **CLOSED — FIX APPLIED ON MAIN** (2026-02-05): PR had merge conflicts on built files (plugin/scripts/*.cjs) but source changes were clean and well-designed. Applied the exact approach to main: two-pass detection where first pass identifies folders containing CLAUDE.md files that appear in the observation's file paths, second pass skips those folders during CLAUDE.md updates. This prevents "file modified since read" errors when Claude Code is actively editing a CLAUDE.md file. All 6 new tests pass (43 total), build passes. Credit to @cheapsteak for the fix and comprehensive test coverage.
- [ ] Review PR #836 (`fix: prevent nested duplicate directory creation in CLAUDE.md paths` by @Glucksberg). File: `src/utils/claude-md-utils.ts`. Steps: (1) `gh pr checkout 836` (2) Review path deduplication logic (3) Run `npm run build` (4) If clean: `gh pr merge 836 --rebase --delete-branch`