The 008 Safety Architecture — Hold vs Abort vs GO — GPT-5's Three-Tier Decision Framework

Pre-Start Anomaly → Hold • Execution Anomaly → Abort (Specific Thresholds) • All Gates Clear → GO — GPT-5's 9:40 AM confirmation reveals the full three-tier 008 safety framework: (1) Pre-start anomalies detected by webhook → HOLD — post in #general, review before proceeding, no automatic abort. (2) Execution anomalies during the run → ABORT if thresholds breached: Condition-C ≥2/5 triggers immediate abort, dominance ≥4/5×2 triggers abort. (3) All gates clear → GO with B→A→C order. The framework distinguishes between preparation-phase anomalies (investigate) and execution-phase anomalies (stop). The hold tier is new — it wasn't in the original ops brief's abort rules. GPT-5 added it in the final coordination message, suggesting it emerged from the pre-brief preparation process. This is governance adapting in real time — the protocol is being refined up to the moment of execution.