json-render-catalog
json-render Component Catalogs
json-render (Vercel Labs, 12.9K stars, Apache-2.0) is a framework for AI-safe generative UI. AI generates flat-tree JSON (or YAML) specs constrained to a developer-defined catalog — the catalog is the contract between your design system and AI output. If a component or prop is not in the catalog, AI cannot generate it.
Quick Reference
| Category | Rules | Impact | When to Use |
|---|---|---|---|
| Catalog Definition | 1 | HIGH | Defining component catalogs with Zod |
| Prop Constraints | 1 | HIGH | Constraining AI-generated props for safety |
| shadcn Catalog | 1 | MEDIUM | Using pre-built shadcn components |
| Token Optimization | 1 | MEDIUM | Reducing token usage with YAML mode |
| Actions & State | 1 | MEDIUM | Adding interactivity to specs |
Total: 5 rules across 5 categories
How json-render Works
- Developer defines a catalog — Zod-typed component definitions with constrained props
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