- worktree_prepare.sh installs the same files deploy/install.sh does (.agents/skills/multi-agent-mux-delegate-job/requirements.txt: paho-mqtt, PyYAML) plus requirements*.txt. Without paho the loop wrapper, stop_session and the subscriber tests fail in the worktree - seen as 4 suite failures in a worktree without its own venv, all passing with one. - review D1: a failed pip install removes the venv it half made, so the next run recreates it instead of reporting VENV=kept (test w1c). - review D3: the [worktree context] block's uncommitted-changes flag uses --untracked-files=all like the guards. - review D2: the create skill doc says the install needs the package index. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01VCgu9Fa9iT7TbJUSzdq4Ff