Declarative UI widgets from JSON for React/Next.js from ui.inference.sh. Render rich interactive UIs from structured agent responses. Capabilities: forms, buttons, cards, layouts, inputs, selects, checkboxes. Use for: agent-generated UIs, dynamic forms, data display, interactive cards. Triggers: widgets, declarative ui, json ui, widget renderer, agent widgets, dynamic ui, form widgets, card widgets, shadcn widgets, structured output ui
Install with the open skills CLI (global, non-interactive — available in every Claude Code session):
npx skills add 101-skills/skills --skill "widgets-ui" -g -a claude-code -yOr manually — copy the SKILL.md below into:
~/.claude/skills/widgets-ui-101-skills/SKILL.md---
name: widgets-ui
description: "Declarative UI widgets from JSON for React/Next.js from ui.inference.sh. Render rich interactive UIs from structured agent responses. Capabilities: forms, buttons, cards, layouts, inputs, selects, checkboxes. Use for: agent-generated UIs, dynamic forms, data display, interactive cards. Triggers: widgets, declarative ui, json ui, widget renderer, agent widgets, dynamic ui, form widgets, card widgets, shadcn widgets, structured output ui"
---
> **Install the belt CLI skill:** `npx skills add belt-sh/cli`
# Widget Renderer
Declarative UI from JSON via [ui.inference.sh](https://ui.inference.sh).

## Quick Start
```bash
npx shadcn@latest add https://ui.inference.sh/r/widgets.json
```
## Basic Usage
```tsx
import { WidgetRenderer } from "@/registry/blocks/widgets/widget-renderer"
import type { Widget, WidgetAction } from "@/registry/blocks/widgets/types"
const widget: Widget = {
type: 'ui',
title: 'My Widget',
children: [
{ type: 'text', value: 'Hello World' },
{ type: 'button', label: 'Click me', onClickAction: { type: 'click' } },
],
}
<WidgetRenderer
widget={widget}
onAction={(action, formData) => console.log(action, formData)}
/>
```
## Widget Types
### Layout
```json
{ "type": "row", "gap": 2, "children": [...] }
{ "type": "col", "gap": 2, "children": [...] }
{ "type": "box", "background": "gradient-ocean", "padding": 4, "radius": "lg", "children": [...] }
```
### Typography
```json
{ "type": "title", "value": "Heading", "size": "2xl", "weight": "bold" }
{ "type": "text", "value": "Body text", "variant": "bold" }
{ "type": "caption", "value": "Small text" }
{ "type": "label", "value": "Field label", "fieldName": "email" }
```
### Interactive
```json
{ "type": "button", "label": "Submit", "variant": "default", "onClickAction": { "type": "submit" } }
{ "type": "input", "name": "email", "placeholder": "Enter email" }
{ "type": "textarea", "name": "message", "placeholder": "Your message" }
{ "type": "select", "name": "plan", "options": [{ "value": "pro", "label": "Pro" }] }
{ "type": "checkbox", "name": "agree", "label": "I agree", "defaultChecked": false }
```
### Display
```json
{ "type": "badge", "label": "New", "variant": "secondary" }
{ "type": "icon", "iconName": "check", "size": "lg" }
{ "type": "image", "src": "https://...", "alt": "Image", "width": 100, "height": 100 }
{ "type": "divider" }
```
## Example: Flight Card
```tsx
const flightWidget: Widget = {
type: 'ui',
children: [
{
type: 'box', background: 'gradient-ocean', padding: 4, radius: 'lg', children: [
{
type: 'row', justify: 'between', children: [
{
type: 'col', gap: 1, children: [
{ type: 'caption', value: 'departure' },
{ type: 'title', value: 'SFO', size: '2xl', weight: 'bold' },
]
},
{ type: 'icon', iconName: 'plane', size: 'lg' },
{
type: 'col', gap: 1, align: 'end', children: [
{ type: 'caption', value: 'arrival' },
{ type: 'title', value: 'JFK', size: '2xl', weight: 'bold' },
]
},
]
},
]
},
],
}
```
## Example: Form
```tsx
const formWidget: Widget = {
type: 'ui',
title: 'Contact Form',
asForm: true,
children: [
{
type: 'col', gap: 3, children: [
{ type: 'input', name: 'name', placeholder: 'Your name' },
{ type: 'input', name: 'email', placeholder: 'Email address' },
{ type: 'textarea', name: 'message', placeholder: 'Message' },
{ type: 'button', label: 'Send', variant: 'default', onClickAction: { type: 'submit' } },
]
},
],
}
```
## Gradients
| Name | Description |
|------|-------------|
| `gradient-ocean` | Blue teal gradient |
| `gradient-sunset` | Orange pink gradient |
| `gradient-purple` | Purple gradient |
| `gradient-cool` | Cool blue gradient |
| `gradient-midnight` | Dark blue gradient |
## Handling Actions
```tsx
const handleAction = (action: WidgetAction, formData?: WidgetFormData) => {
switch (action.type) {
case 'submit':
console.log('Form data:', formData)
break
case 'click':
console.log('Button clicked')
break
}
}
```
## Related Skills
```bash
# Full agent component
npx skills add inference-sh/skills@agent-ui
# Chat UI blocks
npx skills add inference-sh/skills@chat-ui
# Tool UI
npx skills add inference-sh/skills@tools-ui
```
## Documentation
- [Widgets Overview](https://inference.sh/docs/agents/widgets/overview) - Understanding widgets
- [Widget Schema](https://inference.sh/docs/agents/widgets/schema) - Widget JSON structure
- [Agents That Generate UI](https://inference.sh/blog/ux/generative-ui) - Building generative UIs
Component docs: [ui.inference.sh/blocks/widgets](https://ui.inference.sh/blocks/widgets)
You MUST use this before any creative work - creating features, building components, adding functionality, or modifying behavior. Explores user intent, requirements and design before implementation.
Roleplay the most difficult, tech-resistant user for your product. Browse the app as that persona, find every UX pain point, then filter complaints through a pragmatism layer to separate real problems from noise. Creates actionable tickets from genuine issues only.
ASCII video: convert video/audio to colored ASCII MP4/GIF.