memplan/update-mem

Routes mid-session information to the correct .mem file and propagates staleness to any dependent files. The agent classifies the update, writes via the CLI, then runs stale-mark for every dependent in deps-closure.mem.

This skill is mutating. All writes go through memplan-cli.js.

Guard: only runs if memplan/start was called earlier in this session.

Phase 0: Session guard

Check that memplan/start has been called this session:

cat .memplan/.session 2>/dev/null