Tick fresh-audit of wiki/mechanics/social.md: clean. AssetKnowledge reliabilities (0.7/0.85/0.95), knowing certainty floor 30, person_label name staging, USEFUL_WORK_TRUST disposition warming, and the named asset-task/recruit/badge-tier pins all match the spec. personas.md (IN PROGRESS successor) depends on this implemented baseline, so social.md correctly omits it from Depends. Defense: coverage-row trace only; a clean verdict is a trace per tick.md, no code or contract change.