platform-specs-and-validation The cross-cutting publish-readiness skill — make a post correct on every target (required fields, media rules, limits) and run the validate-before-publish loop. It's the keystone the format skills point to. The agent maps fields + fixes spec violations + validates ; WoopSocial validates and publishes ; content craft and human-judgment calls stay elsewhere. The POV: publish-ready, atomically, the first time WoopSocial validates and publishes atomically — checks every target together, and if any one fails, nothing is created. There's no update endpoint , so a post…