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.
Storybook → catalog import (#1529, 2026-04)
When the project ships a Storybook setup, import the catalog from Storybook stories instead of hand-writing one. The bundled importer at scripts/storybook-to-catalog.mjs reads a @storybook/addon-mcp list-all-documentation manifest and emits a Zod-typed catalog.ts plus a components.tsx registry.
node "${CLAUDE_SKILL_DIR}/scripts/storybook-to-catalog.mjs" storybook-manifest.json \
--out src/genui/catalog.ts \
--components src/genui/components.tsx \
--project-root .
Storybook becomes the single source of truth — adding a story automatically expands the AI-allowed surface; removing one shrinks it. AI safety is enforced at import: callbacks, raw object props, and z.any() are dropped. Full mapping: references/storybook-import.md. Companion fixture for testing: references/storybook-fixture.json.
New in 2026-04 (json-render 0.14 → 0.18)
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