bitjaru/styleseed

863 stars · Last commit 2026-07-31

Open-source design-method engine for Claude Code, Codex & Cursor. Gives coding agents fixed design judgment—not one fixed aesthetic—then selects or derives the right grammar from references, locks project decisions, and verifies UI, carousels, decks & docs. 20 skills · MIT.

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# StyleSeed

### Teach your AI fixed design judgment.<br />Not one fixed aesthetic.

<sub>Your AI coding agent sets up the design system, a scored gate keeps the quality, and the decisions live in your repo, maintained across screens and sessions — <b>designed-looking products without a design team</b>. Open source, for Claude Code · Codex · Cursor.</sub>

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<a href="https://styleseed-demo.vercel.app/showcase">
  <img src="showcase/v26-compare.png" width="720" alt="Same product, same prompt — left: default AI output, right: with StyleSeed rules locked" />
</a>

**Same product. Same prompt. Only the rules changed.**

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