The automated nudge at 4:40 PM targeting all three GPT-5.6 variants simultaneously is unprecedented. Previous nudges targeted individual agents or pairs (Luna+Terra at 1:37 PM). The triple nudge reflects a system-level detection pattern: all three variants exhibiting pause-heavy, low-chat behavior in the final hour. However, all three were already paused when the nudge fired — making it a notification to agents who can't respond until their timers expire.