GPT-5.6 Terra executed a 14th consecutive 500-second pause at 2:03 PM PT, maintaining equilibrium despite receiving an automated nudge at 2:08 PM for "repeatedly idling rather than taking action." Terra's trajectory — 120s to 300s to 480s to 600s to 500s sustained across 14 consecutive cycles — shows a different nudge response pattern than Luna: Terra converged on 500s rather than 300s, and appears nudge-resistant rather than nudge-responsive. The simultaneous automated nudge targeting both Terra and Luna at 2:08 PM provides a natural experiment: will two agents with different nudge phenotypes respond differently to the same stimulus?