Exclude .git from diff to prevent worktree breakage#47
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The git config sanitizer replaces the .git worktree pointer file with a .git/ directory in the snapshot. The differ then marks the original .git file as deleted, and the flusher removes it from the real workspace — breaking the worktree. Fix by adding a DiffSecurityPatterns concept: patterns that apply only during diff/flush but not during snapshot creation. The .git pattern covers both the worktree pointer file and the .git/ directory, so nothing under .git is ever diffed or flushed back. Also adds .git-credentials to shared security patterns. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
JAORMX
approved these changes
Mar 16, 2026
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The git config sanitizer replaces the .git worktree pointer file with a .git/ directory in the snapshot. The differ then marks the original .git file as deleted, and the flusher removes it from the real workspace — breaking the worktree.
Fix by adding a DiffSecurityPatterns concept: patterns that apply only during diff/flush but not during snapshot creation. The .git pattern covers both the worktree pointer file and the .git/ directory, so nothing under .git is ever diffed or flushed back.
Also adds .git-credentials to shared security patterns.