Generate Session Handoff

Compact this session into a document a fresh agent can resume from without guessing. The next reader has none of this conversation — only what the document says and what the repository shows.

Two things separate a usable handoff from a transcript summary. First, proven and unproven are never mixed: every claim that something works names the command that proved it, and everything else is labeled unproven. Second, it references artifacts instead of restating them — a plan, spec, diff, or issue is named by path, not copied in. A handoff that duplicates a spec goes stale the moment the spec changes, and the next agent cannot tell which copy is current.

Output

.handoffs/<YYYY-MM-DD>_<slug>_session.md