TLDR Tech / Design
How Our Agents Build On-Brand Pages with design.md
Vercel's design.md is a public file any agent can load to build on-brand pages outside the codebases where its product-design skill lives. The system pairs that guidance with a public stylesheet defining fixed classes and tokens, plus an evaluation loop that turns reviewer feedback into rules and deterministic checks. After more than 200 test runs, pages generated with design.md loaded showed 57% fewer known layout failures than those generated without it.
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