StyleSeed open-sources design-method engine for Claude Code, Codex, Cursor, boosting quality by 5.3 points

tom_doerr · x · 2026-08-12

StyleSeed is an open-source design-method engine for Claude Code, Codex, and Cursor. It scores renders against a fixed grammar to reject default accents and centered grids, giving AI coding agents fixed design judgment. On 120 rendered benchmark cells, the enforced gate improved both Codex and Claude Code by +5.3 points. The project includes 22 skills and is MIT licensed.

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