What problem does it solve? Long AI coding sessions lose all context when they end, forcing the next session to re-derive what was done, what remains, and how to verify it. This Skill captures that state once into linkable artifacts so the next session or a teammate resumes with zero re-research. ## Core Features & Use Cases - Handoff document generation: Writes a dated handoff doc with TL;DR state, proven work with commit hashes, prioritized next steps with safe approaches and proof gates, and key gotchas linked to file:line. - Standalone resume prompt: Produces a self-contained copy-paste prompt pointing to handoff, coordination, tracker, and memory paths so a fresh session continues cold. - Session metrics logging: Appends one row per session to session-log.csv with exact subagent token counts and honest n/a estimates where totals are not measurable. - Use Case: When a refactoring session is nearly out of context, say "hand off" and the Skill writes the three artifacts under docs/handoffs/, commits them, and gives you a resume prompt to paste into the next session. ## Quick Start Say "hand off" or "wrap up the session" when your context is nearly exhausted, and the Skill will write the handoff doc, resume prompt, and session-log row, then commit them.