fix(claude-code): grep-guard liveness probe — block grep unless serve is down - #172
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Replace the blind 5-minute retry-cache auto-unblock with an active
/healthz liveness probe. A low-confidence or empty codesearch result is a
successful call ("reformulate"), not a dead server, so it no longer leaks
grep. Grep on an indexed internal path is now allowed ONLY when the
codesearch serve hub is genuinely unreachable.
- grep-guard.ps1: Invoke-WebRequest probe to {base}/healthz (2s timeout)
- grep-guard.sh: curl probe (no -o /dev/null — Git-Bash exit-23 quirk);
requires curl
- base URL: CODESEARCH_SERVER > 127.0.0.1:$CODESEARCH_SERVE_PORT > :39725
- rewrote deny message to forbid grep-on-low-confidence and steer to
find/explore/single-term reformulation
- README: documented liveness-probe behavior, dropped 5-min retry text
web-guard hooks intentionally left unchanged (different tool, no liveness
endpoint) — tracked as a follow-up.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The deny message became a generic template, so the Grep pattern is no longer interpolated. Remove the dead pattern/$pattern extraction from both hooks (path is still used by the internal-path gate). Flagged by code review; no behavior change. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Re-creation of #170 (auto-closed when its stacked base branch
fix/watcher-reindex-tui-visibilitywas deleted on #169 merge). The watcher work landed via #169; this PR now carries only the 3 grep-guard commits againstdevelop.What: grep-guard hooks (bash + pwsh) now block
grep/search unlesscodesearch serveis down — prevents the agent searching a stale filesystem when the semantic index is live.a3f4ec6🔒️ fix: grep-guard blocks grep unless codesearch serve is downb40441f♻️ refactor: drop now-unused pattern extractionf5a1e3d📝 docs: changelog entryValidation:
bash -n grep-guard.sh✅; pwsh parser checkgrep-guard.ps1✅.