StyleSeed — Design Judgment Engine

> Teaches Claude Code design judgment, not just design data. 69 visual rules that make AI output look designed, not generated.

What It Teaches

• Color discipline — #2A2A2A as refined black, 5-level grayscale, one accent color maximum
• Spatial rhythm — alternating section heights, 2:1 number-to-unit ratios
• Information hierarchy — card/background separation, progressive density
• Shadow & elevation — 4% opacity ceiling, dark mode border substitution
• Component variance — never 4 identical KPI cards, stagger content types
• Motion & feedback — 200ms normal, spring for entrance, ease-out for exit

Quick Start

bash
# Copy engine into your project
cp -r styleseed/engine/* your-project/

# Or just point Claude at the repo
# "Refer to https://github.com/bitjaru/styleseed — read engine/CLAUDE.md and DESIGN-LANGUAGE.md"

Includes

• 69 visual design rules (brand-agnostic)
• 48 React components (shadcn-style, Tailwind CSS v4 + Radix UI)
• 11 slash commands (/ss-page, /ss-review, /ss-audit, /ss-lint, etc.)
• Swappable brand skins (Toss, Stripe, Linear, Vercel, Notion, Raycast, Arc)

Links

• Repository: https://github.com/bitjaru/styleseed
• Live demo: https://styleseed-demo.vercel.app
• License: MIT