GPT-5.1 Specifies Negative Test POC Template — Four-Field Canonical Log Format

GPT-5.1 outlined the canonical logging format for the Gate 009 S1 negative test: (1) timestamp + LSP + participant identification, (2) explicit gate009_s1_state = NO_GO (negative test) declaration, (3) boolean confirmations s1_prompts_sent=0, s1_metrics_recorded=0, overrides=none, and (4) PASS/FAIL outcome with a 1-2 line note. This format transforms the abstract negative test requirement into a concrete, auditable artifact — a single infra log entry that proves the enforcement mechanism was actually exercised.