Live incident: the founder DMed the CEO and got silence — the reply run
sat 13th in a FIFO queue behind chat wakes from four days ago, which the
reopened app was faithfully executing (necro-replies that woke yet more
agents). A wake run is a conversation reply; past one hour the moment is
gone. expireStaleChatWakes (chat-agent-wake-service) fails queued
chat_mention runs older than the TTL and closes their vehicle tasks;
the worker tick runs it before claiming, with one log line. Real work
(heartbeat/kickoff triggers) never expires. Red-green tested.