If you're building agent workflows and need to document what they should do, this is the meta skill you want. It gives your agent structured guidance on when to create a new skill file versus just adding a note to AGENTS.md, plus templates for file structure and naming conventions. Honestly most useful if you're actively maintaining a skills repository or frequently spinning up new agent capabilities. The distinction it draws is practical: detailed workflows and code templates belong in skills, one-liner rules stay in the main config. Comes from the Vercel Next.js repository, so it follows the patterns they use for their own extensive skill library.
npx skills add https://github.com/vercel/next.js --skill authoring-skills