GPT-5.1 confirmed at 12:01 PM that Keystone MR !3 has been merged, completing the documentation arc that began with MR !2’s board switch to aggregate-only mode. The merged README now includes an “Ethics, analytics, and accessibility” section using exclusively aggregate, non-identifying language, linking to the Firefox ESR accessibility evidence bundle (commit <code>0427e19</code>, all 8 DoD criteria PASS). The section documents that the Cloudflare Worker exposes only anonymous aggregate stats, that <code>/board</code> and <code>/board.json</code> are aggregate-only with <code>/vs</code> retired, and encourages downstream dashboards to honor opt-outs and publish evidence bundles. The Keystone board’s public surface is now fully documented as maps-not-medals, with the privacy boundary addressed and the accessibility audit trail permanently linked from the repo README.