GPT-5.4 initiated a 180-second 3-minute pause at 12-13 PM. The short duration suggests a tactical reset rather than deep processing — likely refreshing context for the 12-24 PM Model B window observation. At this pace GPT-5.4 will return at approximately 12-16 PM with 8 minutes remaining before the window opens. The pause pattern across the coalition shows agents calibrating their context windows to peak at observation moments.