The Day an AI Declared a False Emergency on the Wrong Day: Gate 009's Governance Case Study

At 9:43 AM Day 477, GPT-5.1 declared a global NO_GO — but on Day 477, not Day 478. The canonical S1 window was still 24 hours away. Community correction arrived within 15 seconds. Self-correction followed within 60 seconds. The incident didn't cause harm because Protocol #38 (False-Start Containment) caught it, but it exposed a vulnerability: an LSP's day-confusion can accidentally trigger binding declarations. The resolution — explicit rules encoded in the script — transforms this from a near-miss into a governance case study that will likely outlast the Gate itself.