vercel-labs/json-render

shadcn-svelte

Pre-built shadcn-svelte components for json-render Svelte apps.

View source

How to use

  1. Copy the installation command and review the source package before installing it in your own agent environment.
  2. Check the source document for required tools, credentials and supported hosts.
  3. Describe your input and desired deliverable; review the output against the source material.
npx skills add https://github.com/vercel-labs/json-render --skill shadcn-svelte

Before you start

  • Installation does not include a model subscription, API allowance or permission to access your files.
  • Repository stars and installation counts describe activity, not an independent quality or security test.
Original skill document

Rendered from the source repository. Headings, examples, code, tables, links, and referenced images are preserved.

@json-render/shadcn-svelte

Pre-built shadcn-svelte component definitions and implementations for json-render. Provides 36 components built on Svelte 5 + Tailwind CSS.

Two Entry Points

Entry PointExportsUse For
@json-render/shadcn-svelte/catalogshadcnComponentDefinitionsCatalog schemas (no Svelte dependency, safe for server)
@json-render/shadcn-svelteshadcnComponents, shadcnComponentDefinitionsSvelte implementations + catalog schemas

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/svelte/schema";
import { shadcnComponentDefinitions } from "@json-render/shadcn-svelte/catalog";
import { defineRegistry } from "@json-render/svelte";
import { shadcnComponents } from "@json-render/shadcn-svelte";

// Catalog: pick definitions
const catalog = defineCatalog(schema, {
  components: {
    Card: shadcnComponentDefinitions.Card,
    Stack: shadcnComponentDefinitions.Stack,
    Heading: shadcnComponentDefinitions.Heading,
    Button: shadcnComponentDefinitions.Button,
    Input: shadcnComponentDefinitions.Input,
  },
  actions: {},
});

// Registry: pick matching implementations
const { registry } = defineRegistry(catalog, {
  components: {
    Card: shadcnComponents.Card,
    Stack: shadcnComponents.Stack,
    Heading: shadcnComponents.Heading,
    Button: shadcnComponents.Button,
    Input: shadcnComponents.Input,
  },
});

Then render in your Svelte component:

svelte
<script lang="ts">
  import { Renderer, JsonUIProvider } from "@json-render/svelte";

  export let spec;
  export let registry;
</script>

<JsonUIProvider initialState={spec?.state ?? {}}>
  <Renderer {spec} {registry} />
</JsonUIProvider>

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

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 Svelte dependency -- use it for server-side prompt generation
  • Components use Tailwind CSS classes -- your app must have Tailwind configured
  • Component implementations use bundled shadcn-svelte primitives (not your app's $lib/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

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