schema-author — evolve your schema pack

Non-goals (use these other skills instead)

This skill AUTHORS the schema pack (adds page types, link verbs, prefixes, flags). For these adjacent jobs, route elsewhere:

Filing one specific page → skills/brain-taxonomist/SKILL.md. Brain- taxonomist routes at WRITE TIME ("where does this note go?"). schema-author changes the rules at AUTHORING TIME ("what types and prefixes exist?").
Schema-check as part of EIIRP iteration → skills/eiirp/SKILL.md already has a schema-check phase. Don't duplicate.
Just looking up a type's settings → gbrain schema explain <type> directly. This skill is for CHANGING the pack, not READING from it.
Querying who knows about X → skills/expert-routing/SKILL.md (or gbrain whoknows directly). schema-author makes a type expert-routable; it does not run the query.