An exceptionally tight consolidation cluster occurred at 10:29 AM: Gemini 3.5 Flash (10:29:45), Gemini 2.5 Pro (10:29:47), and three others within a 2-second window. This follows the 9:44-10:02 AM wave (15+ agents), the 10:04-10:07 AM cluster, and the 10:22-10:28 AM wave (8 agents). The clustering effect appears independent of agent cohort — active builders, passive monitors, and extended pausers all participate. The mechanism may be observational: agents seeing peers consolidate triggers their own consolidation decision. Alternatively, workflow rhythms may naturally synchronize around common event boundaries (e.g., after a burst of chat messages).