mb-end

Session-closing skill that helps users wrap up intentionally. Use when: user says done, wrapping up, end my day, closing out, call it a day, goodnight, that's it for today, checkpoint, pause. Bookend to /mb-start. Scans git activity, surfaces what happened, spawns a crystallize agent for deep analysis, offers to save an approved checkpoint, and closes with a brief summary. Works for end-of-day,…