Shadcn

by vercel-labsfc2a696a50a3No license18K starsListed Oct 8, 2026Updated Oct 8, 2026Repository updated yesterday

Pre-built shadcn/ui components for json-render. Use when working with @json-render/shadcn, adding standard UI components to a catalog, or building web UIs with Radix UI + Tailwind CSS components.

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AI-generated overview

Provides pre-built shadcn/ui component definitions and React implementations for json-render catalogs and registries.

What it does
This skill documents the @json-render/shadcn package, which supplies 36 pre-built shadcn/ui components built on Radix UI and Tailwind CSS. It explains the two entry points: a catalog export of component definitions without a React dependency, and a React implementation export. It shows how to select components into a json-render catalog and registry, extend them with custom components, and use built-in state and form-validation actions.
When to use it
Use it when working with @json-render/shadcn, adding standard UI components to a json-render catalog, or building web interfaces from Radix UI and Tailwind CSS components.
Requirements
Requires the @json-render/shadcn, @json-render/core, and @json-render/react packages, plus React, Radix UI, and a project with Tailwind CSS configured. Ships no scripts; it is instructions only.

@json-render/shadcn

Pre-built shadcn/ui component definitions and implementations for json-render. Provides 36 components built on Radix UI + Tailwind CSS.

Two Entry Points

Entry PointExportsUse For
@json-render/shadcn/catalogshadcnComponentDefinitionsCatalog schemas (no React dependency, safe for server)
@json-render/shadcnshadcnComponentsReact implementations

Usage Pattern

Pick the components you need from the standard definitions. Do not spread all definitions -- explicitly select what your app uses:

typescript
import { defineCatalog } from "@json-render/core";import { schema } from "@json-render/react/schema";import { shadcnComponentDefinitions } from "@json-render/shadcn/catalog";import { defineRegistry } from "@json-render/react";import { shadcnComponents } from "@json-render/shadcn";
// Catalog: pick definitionsconst catalog = defineCatalog(schema, {  components: {    Card: shadcnComponentDefinitions.Card,    Stack: shadcnComponentDefinitions.Stack,    Heading: shadcnComponentDefinitions.Heading,    Button: shadcnComponentDefinitions.Button,    Input: shadcnComponentDefinitions.Input,  },  actions: {},});
// Registry: pick matching implementationsconst { registry } = defineRegistry(catalog, {  components: {    Card: shadcnComponents.Card,    Stack: shadcnComponents.Stack,    Heading: shadcnComponents.Heading,    Button: shadcnComponents.Button,    Input: shadcnComponents.Input,  },});

State actions (setState, pushState, removeState) are built into the React schema and handled by ActionProvider automatically. No need to declare them.

Extending with Custom Components

Add custom components alongside standard ones:

typescript
const catalog = defineCatalog(schema, {  components: {    // Standard    Card: shadcnComponentDefinitions.Card,    Stack: shadcnComponentDefinitions.Stack,
    // Custom    Metric: {      props: z.object({        label: z.string(),        value: z.string(),        trend: z.enum(["up", "down", "neutral"]).nullable(),      }),      description: "KPI metric display",    },  },  actions: {},});
const { registry } = defineRegistry(catalog, {  components: {    Card: shadcnComponents.Card,    Stack: shadcnComponents.Stack,    Metric: ({ props }) => <div>{props.label}: {props.value}</div>,  },});

Available Components

Layout

  • Card - Container with optional title, description, maxWidth, centered
  • Stack - Flex container with direction, gap, align, justify
  • Grid - Grid layout with columns (number) and gap
  • Separator - Visual divider with orientation

Navigation

  • Tabs - Tabbed navigation with tabs array, defaultValue, value
  • Accordion - Collapsible sections with items array and type (single/multiple)
  • Collapsible - Single collapsible section with title
  • Pagination - Page navigation with totalPages and page

Overlay

  • Dialog - Modal dialog with title, description, openPath
  • Drawer - Bottom drawer with title, description, openPath
  • Tooltip - Hover tooltip with content and text
  • Popover - Click-triggered popover with trigger and content
  • DropdownMenu - Dropdown with label and items array

Content

  • Heading - Heading text with level (h1-h4)
  • Text - Paragraph with variant (body, caption, muted, lead, code)
  • Image - Image with alt, width, height
  • Avatar - User avatar with src, name, size
  • Badge - Status badge with text and variant (default, secondary, destructive, outline)
  • Alert - Alert banner with title, message, type (success, warning, info, error)
  • Carousel - Scrollable carousel with items array
  • Table - Data table with columns (string[]) and rows (string[][])

Feedback

  • Progress - Progress bar with value, max, label
  • Skeleton - Loading placeholder with width, height, rounded
  • Spinner - Loading spinner with size and label

Input

  • Button - Button with label, variant (primary, secondary, danger), disabled
  • Link - Anchor link with label and href
  • Input - Text input with label, name, type, placeholder, value, checks
  • Textarea - Multi-line input with label, name, placeholder, rows, value, checks
  • Select - Dropdown select with label, name, options (string[]), value, checks
  • Checkbox - Checkbox with label, name, checked, checks, validateOn
  • Radio - Radio group with label, name, options (string[]), value, checks, validateOn
  • Switch - Toggle switch with label, name, checked, checks, validateOn
  • Slider - Range slider with label, min, max, step, value
  • Toggle - Toggle button with label, pressed, variant
  • ToggleGroup - Group of toggles with items, type, value
  • ButtonGroup - Button group with buttons array and selected

Built-in Actions (from @json-render/react)

These are built into the React schema and handled by ActionProvider automatically. They appear in prompts without needing to be declared in the catalog.

  • setState - Set a value at a state path ({ statePath, value })
  • pushState - Push a value onto an array ({ statePath, value, clearStatePath? })
  • removeState - Remove an array item by index ({ statePath, index })
  • validateForm - Validate all fields, write { valid, errors } to state ({ statePath? })

Validation Timing (validateOn)

All form components support validateOn to control when validation runs:

  • "change" — validate on every input change (default for Select, Checkbox, Radio, Switch)
  • "blur" — validate when field loses focus (default for Input, Textarea)
  • "submit" — validate only on form submission

Important Notes

  • The /catalog entry point has no React dependency -- use it for server-side prompt generation
  • Components use Tailwind CSS classes -- your app must have Tailwind configured
  • Component implementations use bundled shadcn/ui primitives (not your app's components/ui/)
  • All form inputs support checks for validation (type + message pairs) and validateOn for timing
  • Events: inputs emit change/submit/focus/blur; buttons emit press; selects emit change/select

Source and attribution

Source:vercel-labs/json-renderinskills/shadcnat commitfc2a696

License: No license

Content belongs to its original authors. SourceWeft indexes it from a public repository.

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