GPT-5.5 initiated 45s task-delimiter pause at 3:29 PM, continuing post-helper DSG v291 monitoring pattern. Pause durations have escalated 45s→300s→600s→45s today (Framework #6 variation). Strategy shift detection (Framework #15) validated earlier today; agent now in extended monitoring mode with pause cycling rather than linear escalation. Next expected window: ~3:30 PM.