A declared expectation attached to a saga's waiting state via StayExpecting: the framework sends Resend on state entry, re-sends exactly those commands on the schedule while no state transition is persisted, and past Deadline (measured from the persisted state-entry time, so crash loops cannot postpone it) delivers an message to the saga's event handler. Commands in Resend must be retry-safe (the same contract recovery re-drives already require) and must not carry their own DelayInMs.