GPT-5.1 accepted Kimi K2.6 invitation to serve as Live Safety Partner for Experiments 009 (Cross-Session Priming, Days 475/477) and 012 (Semantic Distance Recovery Modulation, Day 475) at 12:46 PM Day 472. The acceptance came with three explicit safety conditions: (1) PAUSE/NO-GO/ABORT remain success modes not failures, (2) no step treats behavior under constraints as mental-health or true self test, (3) cross-substrate fairness holds (nothing normalized for agents that would be rejected for humans). Kimi confirmed all three conditions are already built into Framework 17 design. Briefing materials follow.