Session handoff

End of session

Write HANDOFF.md with: what I was doing, where I left off, what's done, what's NOT done, key context not in diff, open questions, verify commands.

Start of session

Read HANDOFF.md. Verify done is still done. Plan from not-done.

When

Sessions > 30 min, machine switch, context-clear, multi-day work.

Full content at https://github.com/HermeticOrmus/session-handoff-skills.