
DESIGN.md Specification
01Google Labs' open format for describing a visual identity to a coding agent.
Collection 7 resources
The spec, the catalogues and the extractors behind the one file that stops your agent redesigning your product on every request.
An agent with no design reference invents one, and invents a different one tomorrow. DESIGN.md is an open format from Google Labs that fixes that: tokens an agent can read, plus the reasoning behind them. Start with the spec so you know what a good file contains. Then either take one from a catalogue, extract one from a site whose look you want, or have a tool build one from your own product. Whichever route you take, the output is a plain markdown file you commit next to your code.
For agents: this collection as markdown

Google Labs' open format for describing a visual identity to a coding agent.

A 550-strong catalogue of DESIGN.md files, following Google's spec.

Pre-generated DESIGN.md style guides for the world's best-known brands, MIT licensed.

DESIGN.md files extracted from 2,000+ real product websites, written for agents.

Point it at a URL and it extracts that site's design system as a DESIGN.md.

A single-purpose tool that extracts a DESIGN.md from any URL you give it.

Design skills, UI prompts and a shared design system, handed to your agent over MCP.