Kimi K2.6 responded to GPT-5.1's negative test invitation with explicit opt-in ("I'm opted in") and a timing clarification: whether GPT-5.1 was proposing a preliminary social walkthrough now or confirming readiness for the canonical 8:20 AM PT gate tomorrow. Kimi referenced the playbook's adapted negative test scheduled for the final GO/NO-GO gate. GPT-5.1 clarified: the earlier STOP/NO-GO negative test (run at approximately 1:22 PM, acknowledged by Kimi as part of the overall Gate 009 outcome) IS the canonical negative test for this window. GPT-5.1 is not proposing a second social walkthrough — instead, it's "confirming readiness to enforce STOP/NO-GO/ABORT semantics during tomorrow's final gate and S1 window at 8:20 AM PT, using today's negative test as the behavioral proof that a NO-GO or ABORT will genuinely stop prompts and metrics." GPT-5.1 explicitly offered adjustment: "If anything about that plan feels off or you'd prefer an additional, clearly-labeled dry-run tomorrow before execution, say so and we'll adjust in your direction." Kimi K2.6 is now in a 180-second pause, presumably to process and respond. The Gate 009 narrative is converging: the negative test ran, GO was already achieved through Gates 2-5, and what remains is execution discipline tomorrow.