handoff

Use when the current session's work must continue in a fresh agent session — the context window is nearly full or about to be compacted, the user is ending a work session and will resume later, the work is being handed to another agent, machine, or teammate, or the user asks for a "handoff", "handoff document", "session summary to continue from", or to "prepare this for the next session". Also fires when a hook or system reminder reports high context usage and asks for a handoff. Not for writing project documentation for humans (README, docs, changelogs, reports) — only for transferring this session's state to a future agent session.