One implementation for both surfaces: the stale exemption, the bare-flag
mechanical proxy (15-minute back-window against the newest labeled event),
the marker-scoped idempotency, the 7-day nudge with no marker (the comment
is the activity that resets its own window), and the one impure
orchestrator both reconcilers will source.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>