create-design-md

Run the Skill in repository mode against the selected product. It inspects existing guidance, tokens, themes, shared primitives, and representative routes, then writes a validated DESIGN.md at the product root without modifying any source code.

Use URL mode with a public URL. The Skill inspects the rendered DOM, computed styles, and loaded stylesheets at desktop and mobile widths, then produces a reconstructed draft DESIGN.md containing only values that pass its three-proof evidence gate.

Yes. It selects css-tailwind as the export target for Tailwind v4 and json-tailwind for Tailwind v3, resolving framework utilities through the active theme before writing exact token values into the frontmatter.

It checks the installed @google/design.md specification first. If themes and default-theme are supported it uses theme-aware syntax; otherwise it records default values in canonical tokens and preserves alternate-theme values in a fallback Themes table.

Candidates are omitted when they are uncertain, page-local without a contract, or not implementation-relevant. Only named shared tokens, explicit guidance, or patterns recurring across audited surfaces are promoted into the document.

No. The Skill's boundary is strictly DESIGN.md. It never changes product source, dependencies, configuration, or generated files, and it reports conflicts with explicit guidance outside the document.