Move the skill to .agents/skills/tttk-authoring and point gen:skill-reference at it. Activate it by symlinking ~/.agents/skills/tttk-authoring to the in-repo copy.
Extend the reference drift guard to cover the skill copy now that it is versioned, and document activation in docs/development.md.
Enrich known.ts with element/role details, inline specs, and dice notation, and render them from reference.ts. Add gen:skill-reference and ~ expansion in --out so the skill copy can be regenerated.
The skill's reference.md is now generated; its extra authoring content moved to layout.md, yaml-tag.md, csv.md, and markdown.md.