Review round 2 on PR #194: with the hook made a no-op the test still passed (no swap, the rollback wrote the real note, victim trivially untouched). It now asserts the error says the edit could NOT be rolled back and that the note path is still the swapped-in symlink; red when the hook does not fire. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>