[Chore ]Add HEAD check gate to Stop hook to skip expensive work on most turns #27
Merged
HeshamHM28 merged 4 commits intomainfrom Mar 18, 2026
Merged
[Chore ]Add HEAD check gate to Stop hook to skip expensive work on most turns #27HeshamHM28 merged 4 commits intomainfrom
HeshamHM28 merged 4 commits intomainfrom
Conversation
Store the HEAD cache file in $REPO_ROOT/.claude/ (the project-specific Claude directory) instead of /tmp/codeflash-state/. This is consistent with how the plugin already uses .claude/ for settings.json and avoids polluting /tmp. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Store the HEAD cache file in the Claude-managed transcript directory (alongside codeflash-seen) instead of /tmp/codeflash-state/. The transcript directory is already used for per-session state and is the proper plugin-specific location for this kind of data. Also fixes a bug where the HEAD cache was never written after the check, so the gate would never actually skip subsequent invocations. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Problem
The Stop hook (suggest-optimize.sh) fires on every Claude response and runs ~8 process spawns (git log, stat, jq, sort, grep, etc.) before deciding there's nothing to do. On most turns, no commit has happened, so this
work is wasted.
Solution
Added a cheap gate early in the script that compares git rev-parse HEAD against a cached value in /tmp/codeflash-state/. If HEAD hasn't changed since the last check, the hook exits immediately — skipping all the expensive
git log scanning, transcript stat calls, pyproject discovery, and venv detection.
How it works