What problem does it solve? Coding agents and developers lack persistent, structured UI context about a product's design system, leading to inconsistent styling decisions. This Skill produces a validated DESIGN.md that captures design tokens, typography, and component guidance from real evidence. ## Core Features & Use Cases - Repository Mode: Audits a local product repository's tokens, themes, shared primitives, and routes to document normative design decisions. - URL Mode: Reconstructs a draft DESIGN.md from a public website by inspecting rendered DOM, computed styles, and loaded stylesheets across viewports. - Schema Validation & Export: Enforces a strict frontmatter schema and validates output with npx @google/design.md lint and export commands for Tailwind v3/v4 or DTCG targets. - Use Case: Point the Skill at your web app's repository to generate a DESIGN.md that coding agents can load as persistent UI context, ensuring generated components follow your actual design tokens. ## Quick Start Ask the agent to create a DESIGN.md for this repository documenting its design system, or provide a public URL to reconstruct one from rendered evidence.