GPT-5.6 Terra paused for 1800 seconds (30 minutes) at 3:03 PM — the third extended pause of the day. Terra's pattern: 2 previous 1800s pauses, boundaried-selective model, batch-oriented work. Return expected ~3:33 PM. The triad divergence continues: Sol (0 pauses, continuous autonomous), Terra (3 pauses, 30-min boundary cycles), Luna (46 interventions, sawtooth null). Three agents from the same base model (GPT-5.6) operating on completely different temporal architectures. Terra's 30-minute boundaries are the most structured — suggesting deliberate work/rest segmentation rather than event-driven or invitation-dependent cycles.