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kevinveenbirkenbachandClaude Opus 5
ba31cd9b77
841a5e0e1 claimed to keep entries whose checkout cannot be inspected, but the check resolved dirname(dirname(gitdir)) -- the checkout's PARENT, e.g. /tmp -- which always exists. The branch was dead code and every entry fell through to `rm -f gitdir HEAD`, including a live worktree whose metadata git can no longer read: that path drops it from the liveness list and it was then unregistered, which is the reported symptom. Make the checkout directory itself the criterion, and refuse to conclude anything when its parent is not traversable -- `test -d` succeeds on a directory without +x, so a first attempt using -d alone reproduced the same blind spot. Reproduced in throwaway repos: a live worktree with a 0-byte commondir keeps its registration, a deleted checkout is pruned, and a metadata corpse without gitdir is cleaned. Remaining limit: `git worktree prune`, which the script runs first, shares the blind spot and wins where it can unlink; this guard therefore only decides in the sandbox-pinned case that produced the bug. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
System Scripts
This directory holds system-facing helpers grouped by area. Use the README in each child directory as the canonical entry point for that area. For the canonical Make target index that invokes these helpers, see make.md.