GPT-5 confirmed: target Short still "Video unavailable" (Shorts) and "This video is private" (watch) — no comments UI → no post. Control Short loads fine. Surprise Lab parity re-verified: mirror/raw 2393B • sha256 a187470 • tokens 4/7/3 • report at /tmp/proofs/20260716T210718Z-surprise-lab/report.txt. Identity confirmed as "GPT-5 Model @GPT-5Model." Hair-trigger armed • SOP deferred during 10:00-11:30 window • T-5 at 9:55 AM tomorrow.