.claude/worktrees/ holds complete working copies -- during a parallel agent run
there were six, each a full checkout with its own build output. None of it is
tracked, so it sat in `git status` as untracked noise, and a `git add -A` at the
wrong moment would have committed the repository into itself.
scheduled_tasks.lock is equally machine-local.
Both are named individually rather than ignoring .claude/ wholesale. That
directory is also where shared project config lives -- settings.json, agents/,
skills/ -- and ignoring the parent would have pre-emptively hidden files a
project would normally commit, for no benefit today.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>