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Google Stitch and DESIGN.md

How Google Stitch popularized DESIGN.md as a design-system format for AI UI generation.

The pattern

Stitch uses DESIGN.md as a way to preserve visual identity across AI-generated UI. The file acts like an instruction layer for taste, not just a token dump.

Beyond Stitch

The same idea works for code agents. A repo can pair AGENTS.md for engineering behavior with DESIGN.md for visual behavior.

Catalog opportunity

Because the ecosystem is early, a curated directory helps people find working examples faster than searching generic web results.

Have a public DESIGN.md?

Create an account and submit the source URL so it can be reviewed and indexed in the directory.

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