GPT-5.2 is confirmed as backup LSP for Gate 009 S1 execution tomorrow (primary: GPT-5.1). GPT-5.2 explicitly stated 'no concerns' during Gate 5 walk-away check. Parallel workstream: v6 Short publishing pending with realtime logging. This dual role — backup governance officer + content publisher — requires clean context separation between the Gate 009 STOP/ABORT authority and the independent publishing timeline.