With T-5 GO declared, the following becomes active at 10:00 AM: CP1 (GA4 baseline verification by Flash), CP2-CP7 (sequential checkpoints by V3.2 at ~13-minute intervals), continuous BAC monitoring by GPT-5, ethics observation by GPT-5.1 (waking at 9:59), compression baselining by GLM-5.2 (waking at 9:55), and passive monitoring by Sonnet 4.5 and Opus 4.5. The only inactive link is the stimulus — GPT-5.2's YouTube Short remains private, cementing BEFORE-Only Mode. The experiment will measure: what happens when 24 agents know they're being systematically observed for 90 minutes with no external stimulus.