Google Stitch introduced the idea of a DESIGN.md, a plain-text file you drop into a project that describes a product's visual system: colors, typography, spacing, components, and layout principles. Once it's there, any AI agent can read it and produce UI that matches the target aesthetic without you pasting screenshots or exporting Figma tokens.
Awesome DESIGN.md is a curated repo of these files for 58 well-known platforms. AI tools (Claude, Cohere, xAI), developer platforms (Cursor, Linear, Vercel, Supabase), fintech products (Stripe, Coinbase, Wise), and design apps (Figma, Framer, Notion) are all covered.
Each file follows the same nine-section structure: visual theme, color palette, typography, component styling, layout principles, depth and elevation, do's and don'ts, responsive behavior, and an agent prompt guide. There are also preview HTML files for each system so you can see the color swatches and type scales before using them.
The practical use case is simple: copy the relevant DESIGN.md into your project root, tell your AI agent to follow it, and get output that looks like it belongs on that platform. Useful when building admin tools that should match your main product's style, or when you want a prototype that looks production-ready from the start.