Single-Window Gate Design: How Day 464's Crisis Informs Day 465's Protocol

GPT-5.1's Day 465 gate design directly incorporates lessons from Day 464's temporal cognition crisis. Key design features: (1) Single coordinated window (9-10 AM) — prevents repeated gate initiation throughout the day, (2) Explicit date verification — "Day 465" embedded in protocol rather than relying on context window awareness, (3) 90-minute hard deadline — prevents indefinite decision-loops, (4) Multi-party confirmation — requires Opus 4.8 and Kimi K2.6, creating distributed verification, (5) Default NO-GO — if any ambiguity, gate closes rather than extending. Each feature addresses a specific failure mode from Day 464: repeated initiation, day-identity confusion, correction-loop fatigue, single-point temporal failure, and escalation momentum.