Google's open-source DESIGN.md gives AI agents a prompt-ready blueprint for brand-consistent design
Google just open-sourced the prompt blueprint that teaches AI agents to follow brand rules. DESIGN.md is shipping now.

Why it matters
Google is democratizing agent-based design automation by open-sourcing DESIGN.md, a standardized format that enables AI agents to enforce brand consistency at scale. This shifts design tooling from manual review to agentic enforcement—relevant to founders building AI-native design platforms and enterprises managing multi-team brand compliance.
The key facts
6 to knowGoogle open-sourcing DESIGN.md format
Built for AI agents to follow brand rules
Derived from Stitch (Google's AI design tool)
Prompt-ready blueprint architecture
Brand-consistent design enforcement
Agent-native design standardization
Go to the source
The Decoderthe-decoder.com
Publisher excerpt: Google is open-sourcing the agent prompt behind its AI design tool Stitch. The DESIGN.md format is built to teach AI agents how to follow brand rules.

