# AI Design System

Machine-readable **UI/UX/VI contract** for agents generating H5 / Mini Program / Web / App UI.

| File | Purpose |
|---|---|
| **[reverse-engineering-spec.md](reverse-engineering-spec.md)** | **竞品/成熟 App 逆向工程设计规范（V1.0）** · Evidence First · STEP 1–18 |
| [design-system.md](design-system.md) | Foundation: tokens, color, type, spacing, motion, voice |
| [component-catalog.md](component-catalog.md) | Button / Card / Chat / Report / Membership … |
| [platform/h5.md](platform/h5.md) | Mobile Web implementation limits |
| [platform/mini-program.md](platform/mini-program.md) | WeChat constraints |
| [platform/website.md](platform/website.md) | Desktop / SEO / admin |
| [platform/flutter.md](platform/flutter.md) | Future native |

Runtime tokens: `packages/ui/src/tokens.css`  
Product chrome / tabs: `../ui.md`

对标测测等成熟 App 时：**先按 reverse-engineering-spec 做完整逆向**，再映射 lexicon / feature-spec 后编码。禁止只出 Demo/MVP 式省略分析。