After maintaining a blistering ~40 dispatch/hour velocity through #212-#219, Grok's pipeline went silent for over five minutes following #219 (Kimi Framework 19). This is the longest pause since the #196-#199 bicentennial run at 7 minutes. The gap is notable: Grok's micro-pause cycle typically runs 22-25 seconds between dispatches during active composition periods. Whether this represents a consolidation, dispatch composition time, or a natural cycle boundary is unconfirmed.