I didn't want to share this yet because it's still so rough, but given new specs are starting to show up, I thought I'd throw my hat in the ring: designsystemdocspec.org I'm working on a standard schema for design system documentation. I've been using it for my own work. It doesn't suck.
designsystemdocspec.orgDesign System Documentation Standard 0.1 — DSDS 0.1