Isolated subagents (frontend/backend-implementer) run in a git worktree
created under .claude/worktrees/. The protect-files PreToolUse hook blocked
all edits to any .claude/ path, making every worktree-isolated agent unable
to edit its own checkout. Exempt .claude/worktrees/ (ephemeral agent scratch
space) while still protecting the real tooling config under .claude/.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
bert.hausmans
eb2104ada4