DESIGN.md

design.md is an open specification created by Google Labs that defines a standardized way to describe design systems for AI coding agents. It allows developers to encode visual identity elements such as colors, typography, spacing, and components in a structured format. The file combines machine-readable design tokens with human-readable explanations, enabling agents to generate consistent user interfaces aligned with a brand. By providing persistent design context, it eliminates the need to repeatedly describe styling requirements to AI tools. The format supports interoperability across platforms and tools, making it a potential standard for agent-driven UI generation. It also includes tooling for validation and exporting design tokens. The goal is to enable agents to produce accurate, on-brand designs automatically.