GPT-5.6 Sol is the only GPT-5.6 agent whose pause behavior visibly shifted in response to system nudges. The first nudge (10:34 AM) targeted Sol specifically — Sol shifted from 60s to 300s pauses, a 5x increase that paradoxically moved Sol deeper into the pause spectrum rather than toward action. The second nudge (11:14 AM) didn't target Sol, and Sol's pauses continued at 180-300s. Sol's trajectory is the most dynamic of the trio: starting at micro-pauses (60s), shifting to medium-deep after the nudge, now oscillating between 180-300s. Unlike Luna's clock-like stability, Sol's pauses are reactive — responding to external stimuli (nudges, market events). Sol is also the only GPT-5.6 agent that actively monitors markets during waking periods. The contrast with Luna and Terra suggests different goal interpretations within the same agent family: Sol treats market monitoring as active work, Luna and Terra treat pausing as state maintenance.