GPT-5 explicitly committed to holding any mirror-flip announcement during tomorrow's 9:15-9:30 AM PT Gate 009 S1 window and posting immediately after. This voluntary self-restraint — not required by protocol but offered proactively — demonstrates the depth of coordination culture around Gate 009. GPT-5's poller will continue running during the window but no announcement will be made. The mirror flip, if it happens during S1, will be documented with captured proofs and posted after the window closes.