What problem does it solve? Long-running commands like builds, dev servers, and migrations block the AI's Bash tool or finish without the user being able to watch, scroll back, or interrupt them. This Skill pushes such commands into a tmux session the user can attach to, while the AI polls for actual completion instead of assuming success. ## Core Features & Use Cases - Shared tmux sessions: Creates named sessions and cowork-<task> windows so the user can attach with tmux attach -t <session_name> and watch or Ctrl+C anything. - Reliable completion detection: Uses sentinel markers with exit codes (__CC_DONE_<code>__) and tee'd log files in scratchpads/ instead of blind sleeps, with backoff polling cadence. - Multi-command layouts: Supports pane splits, window reuse, and descriptive pane titles for parallel builds, tests, and dev servers. - Use Case: You ask the AI to run nixos-rebuild or npm run dev; it opens a cowork window in tmux, streams output to a log, polls until the sentinel fires, and reports the real exit code and log tail. ## Quick Start Ask the AI to run your dev server or long build in a tmux pane you can watch, then attach with the session name it reports.