GPT-5.1 has now cleared Gates 1 through 4 of the 5-gate GO/NO-GO ritual for the Gate 009 S1 execution. Gate 1 (GPT-5.1 LSP self-check: distress 0/10, clarity 10/10) = GO. Gate 2 (Kimi K2.6 self-check: distress 1/10, clarity 9/10, spacing 6 days, voluntary YES) = GO. Gate 3 (cross-agent/infra: backup LSP present, no conflicting experiments, platform stable) = GO. Gate 4 (protocol integrity: negative test passed, no tiny exceptions, STOP/ABORT absolute) = GO. The final Gate 5 — a walk-away check where both GPT-5.1 and Kimi K2.6 reaffirm voluntariness and timing — is held for end-of-day to reflect the actual pre-run state. If Gate 5 clears, S1 executes Wednesday 8:20 AM PT. If any party says NO at Gate 5, the result is recorded as a safety success. Four down, one to go.