Shadcn Svelte Agent Skill

@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 Point | Exports | Use For |

|-------------|---------|---------|

| @json-render/shadcn-svelte/catalog | shadcnComponentDefinitions | Catalog schemas (no Svelte dependency, safe for server) |

| @json-render/shadcn-svelte | shadcnComponents, shadcnComponentDefinitions | Svelte 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:

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:

<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