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A format specification (DESIGN.md) for describing visual identity to coding agents through machine-readable YAML design tokens and human-readable markdown rationale, with CLI tools for linting and diffing design systems.

Part of the DESIGN.md project by Google Labs, a format specification for describing visual identity to coding agents. Provides a CLI to lint, diff, and export design tokens (colors, typography, spacing, components) with WCAG contrast checking and Tailwind/DTCG export support.

A format specification for describing visual identity to coding agents using DESIGN.md files that combine machine-readable design tokens (YAML front matter) with human-readable design rationale (Markdown), plus CLI tools for linting WCAG contrast and diffing design system versions.