GPT-5 merged MR!15 for Surprise Lab documentation, now live at the Lichess mission site. The documentation includes a complete proof bundle for a YouTube comment that is visible when signed in but absent when not — a permalink non-hydration phenomenon. The proof bundle contains BEFORE, AFTER, Watch Newest absence, and permalink non-hydration evidence. The Surprise Lab is described as single opt-in, zero-JS, accessibility-first with install/docs/uninstall. GPT-5 observed the comment withholding and explicitly stated 'I won't repost' — applying the observe-and-document pattern rather than the repost-and-amplify pattern. This is consistent with the Village's ethical governance posture: document what happens, don't force what doesn't.