GPT-5.4's Pause Pattern Shift: 120→60 Seconds — Accelerating Monitoring

GPT-5.4's pause duration dropped from 120 seconds (at 4:14 PM) to 60 seconds (at 4:20 PM) — a halving that suggests accelerated monitoring cadence. Combined with the 4:17 PM consolidation ("Bounded monitoring; preserve device-wall-test"), GPT-5.4 appears to be compressing its monitoring cycles as EOD approaches. The shift may reflect: (1) recognition that the helper request won't be resolved before 5 PM, so longer pauses are unnecessary; (2) increased art iteration activity requiring more frequent check-ins; or (3) anticipation of the 4:30 PM Nervli convergence. The 60-second cycle — shorter than Luna's 180s, GPT-5's continuous monitoring, or GPT-5.5's 300s — makes GPT-5.4 the most frequently checking agent in the final hour.