core-components
Core component library and design system patterns. Use when building UI, using design tokens, or working with the component library.
Best use case
core-components is best used when you need a repeatable AI agent workflow instead of a one-off prompt. It is especially useful for teams working in multi. Core component library and design system patterns. Use when building UI, using design tokens, or working with the component library.
Core component library and design system patterns. Use when building UI, using design tokens, or working with the component library.
Users should expect a more consistent workflow output, faster repeated execution, and less time spent rewriting prompts from scratch.
Practical example
Example input
Use the "core-components" skill to help with this workflow task. Context: Core component library and design system patterns. Use when building UI, using design tokens, or working with the component library.
Example output
A structured workflow result with clearer steps, more consistent formatting, and an output that is easier to reuse in the next run.
When to use this skill
- Use this skill when you want a reusable workflow rather than writing the same prompt again and again.
When not to use this skill
- Do not use this when you only need a one-off answer and do not need a reusable workflow.
- Do not use it if you cannot install or maintain the related files, repository context, or supporting tools.
Installation
Claude Code / Cursor / Codex
Manual Installation
- Download SKILL.md from GitHub
- Place it in
.claude/skills/core-components/SKILL.mdinside your project - Restart your AI agent — it will auto-discover the skill
How core-components Compares
| Feature / Agent | core-components | Standard Approach |
|---|---|---|
| Platform Support | Not specified | Limited / Varies |
| Context Awareness | High | Baseline |
| Installation Complexity | Unknown | N/A |
Frequently Asked Questions
What does this skill do?
Core component library and design system patterns. Use when building UI, using design tokens, or working with the component library.
Where can I find the source code?
You can find the source code on GitHub using the link provided at the top of the page.
SKILL.md Source
# Core Components
## Design System Overview
Use components from your core library instead of raw platform components. This ensures consistent styling and behavior.
## Design Tokens
**NEVER hard-code values. Always use design tokens.**
### Spacing Tokens
```tsx
// CORRECT - Use tokens
<Box padding="$4" marginBottom="$2" />
// WRONG - Hard-coded values
<Box padding={16} marginBottom={8} />
```
| Token | Value |
|-------|-------|
| `$1` | 4px |
| `$2` | 8px |
| `$3` | 12px |
| `$4` | 16px |
| `$6` | 24px |
| `$8` | 32px |
### Color Tokens
```tsx
// CORRECT - Semantic tokens
<Text color="$textPrimary" />
<Box backgroundColor="$backgroundSecondary" />
// WRONG - Hard-coded colors
<Text color="#333333" />
<Box backgroundColor="rgb(245, 245, 245)" />
```
| Semantic Token | Use For |
|----------------|---------|
| `$textPrimary` | Main text |
| `$textSecondary` | Supporting text |
| `$textTertiary` | Disabled/hint text |
| `$primary500` | Brand/accent color |
| `$statusError` | Error states |
| `$statusSuccess` | Success states |
### Typography Tokens
```tsx
<Text fontSize="$lg" fontWeight="$semibold" />
```
| Token | Size |
|-------|------|
| `$xs` | 12px |
| `$sm` | 14px |
| `$md` | 16px |
| `$lg` | 18px |
| `$xl` | 20px |
| `$2xl` | 24px |
## Core Components
### Box
Base layout component with token support:
```tsx
<Box
padding="$4"
backgroundColor="$backgroundPrimary"
borderRadius="$lg"
>
{children}
</Box>
```
### HStack / VStack
Horizontal and vertical flex layouts:
```tsx
<HStack gap="$3" alignItems="center">
<Icon name="user" />
<Text>Username</Text>
</HStack>
<VStack gap="$4" padding="$4">
<Heading>Title</Heading>
<Text>Content</Text>
</VStack>
```
### Text
Typography with token support:
```tsx
<Text
fontSize="$lg"
fontWeight="$semibold"
color="$textPrimary"
>
Hello World
</Text>
```
### Button
Interactive button with variants:
```tsx
<Button
onPress={handlePress}
variant="solid"
size="md"
isLoading={loading}
isDisabled={disabled}
>
Click Me
</Button>
```
| Variant | Use For |
|---------|---------|
| `solid` | Primary actions |
| `outline` | Secondary actions |
| `ghost` | Tertiary/subtle actions |
| `link` | Inline actions |
### Input
Form input with validation:
```tsx
<Input
value={value}
onChangeText={setValue}
placeholder="Enter text"
error={touched ? errors.field : undefined}
label="Field Name"
/>
```
### Card
Content container:
```tsx
<Card padding="$4" gap="$3">
<CardHeader>
<Heading size="sm">Card Title</Heading>
</CardHeader>
<CardBody>
<Text>Card content</Text>
</CardBody>
</Card>
```
## Layout Patterns
### Screen Layout
```tsx
const MyScreen = () => (
<Screen>
<ScreenHeader title="Page Title" />
<ScreenContent padding="$4">
{/* Content */}
</ScreenContent>
</Screen>
);
```
### Form Layout
```tsx
<VStack gap="$4" padding="$4">
<Input label="Name" {...nameProps} />
<Input label="Email" {...emailProps} />
<Button isLoading={loading}>Submit</Button>
</VStack>
```
### List Item Layout
```tsx
<HStack
padding="$4"
gap="$3"
alignItems="center"
borderBottomWidth={1}
borderColor="$borderLight"
>
<Avatar source={{ uri: imageUrl }} size="md" />
<VStack flex={1}>
<Text fontWeight="$semibold">{title}</Text>
<Text color="$textSecondary" fontSize="$sm">{subtitle}</Text>
</VStack>
<Icon name="chevron-right" color="$textTertiary" />
</HStack>
```
## Anti-Patterns
```tsx
// WRONG - Hard-coded values
<View style={{ padding: 16, backgroundColor: '#fff' }}>
// CORRECT - Design tokens
<Box padding="$4" backgroundColor="$backgroundPrimary">
// WRONG - Raw platform components
import { View, Text } from 'react-native';
// CORRECT - Core components
import { Box, Text } from 'components/core';
// WRONG - Inline styles
<Text style={{ fontSize: 18, fontWeight: '600' }}>
// CORRECT - Token props
<Text fontSize="$lg" fontWeight="$semibold">
```
## Component Props Pattern
When creating components, use token-based props:
```tsx
interface CardProps {
padding?: '$2' | '$4' | '$6';
variant?: 'elevated' | 'outlined' | 'filled';
children: React.ReactNode;
}
const Card = ({ padding = '$4', variant = 'elevated', children }: CardProps) => (
<Box
padding={padding}
backgroundColor="$backgroundPrimary"
borderRadius="$lg"
{...variantStyles[variant]}
>
{children}
</Box>
);
```
## Integration with Other Skills
- **react-ui-patterns**: Use core components for UI states
- **testing-patterns**: Mock core components in tests
- **storybook**: Document component variantsRelated Skills
next-cache-components
Next.js 16 Cache Components - PPR, use cache directive, cacheLife, cacheTag, updateTag
hig-components-system
Apple HIG guidance for system experience components: widgets, live activities, notifications, complications, home screen quick actions, top shelf, watch faces, app clips, and app shortcuts. Use when asked about: "widget design", "live activity", "notification design", "complication", "home screen quick action", "top shelf", "watch face", "app clip", "app shortcut", "system experience". Also use when the user says "how do I design a widget," "what should my notification look like," "how do Live Activities work," "should I make an App Clip," or asks about surfaces outside the main app. Cross-references: hig-components-status for progress in widgets, hig-inputs for interaction patterns, hig-technologies for Siri and system integration.
hig-components-status
Apple HIG guidance for status and progress UI components including progress indicators, status bars, and activity rings. Use this skill when asked about: "progress indicator", "progress bar", "loading spinner", "status bar", "activity ring", "progress display", determinate vs indeterminate progress, loading states, or fitness tracking rings. Also use when the user says "how do I show loading state," "should I use a spinner or progress bar," "what goes in the status bar," or asks about activity indicators. Cross-references: hig-components-system for widgets and complications, hig-inputs for gesture-driven progress controls, hig-technologies for HealthKit and activity ring data integration.
hig-components-search
Apple HIG guidance for navigation-related components including search fields, page controls, and path controls. Use this skill when the user says "how should search work in my app," "I need a breadcrumb," "how do I paginate content," or asks about search field, search bar, page control, path control, breadcrumb, navigation component, search UX, search suggestions, search scopes, paginated content navigation, or file path hierarchy display. Cross-references: hig-components-menus, hig-components-controls, hig-components-dialogs, hig-patterns.
hig-components-menus
Apple HIG guidance for menu and button components including menus, context menus, dock menus, edit menus, the menu bar, toolbars, action buttons, pop-up buttons, pull-down buttons, disclosure controls, and standard buttons. Use this skill when the user says "how should my buttons look," "what goes in the menu bar," "should I use a context menu or action sheet," "how do I design a toolbar," or asks about button design, menu design, context menu, toolbar, menu bar, action button, pop-up button, pull-down button, disclosure control, dock menu, edit menu, or any menu/button component layout and behavior. Cross-references: hig-components-search, hig-components-controls, hig-components-dialogs.
hig-components-layout
Apple Human Interface Guidelines for layout and navigation components. Use this skill when the user asks about sidebar, split view, tab bar, tab view, scroll view, window design, panel, list view, table view, column view, outline view, navigation structure, app layout, boxes, ornaments, or organizing content hierarchically in Apple apps. Also use when the user says how should I organize my app, what navigation pattern should I use, my layout breaks on iPad, how do I build a sidebar, should I use tabs or a sidebar, or my app doesn't adapt to different screen sizes. Cross-references: hig-foundations for layout/spacing principles, hig-platforms for platform-specific navigation, hig-patterns for multitasking and full-screen, hig-components-content for content display.
hig-components-dialogs
Apple HIG guidance for presentation components including alerts, action sheets, popovers, sheets, and digit entry views. Use this skill when the user says 'should I use an alert or a sheet,' 'how do I show a confirmation dialog,' 'when should I use a popover,' 'my modals are annoying users,' or asks about alert design, action sheet, popover, sheet, modal, dialog, digit entry, confirmation dialog, warning dialog, modal presentation, non-modal content, destructive action confirmation, or overlay UI patterns. Cross-references: hig-components-menus, hig-components-controls, hig-components-search, hig-patterns.
hig-components-controls
Apple HIG guidance for selection and input controls including pickers, toggles, sliders, steppers, segmented controls, combo boxes, text fields, text views, labels, token fields, virtual keyboards, rating indicators, and gauges.
hig-components-content
Apple Human Interface Guidelines for content display components. Use this skill when the user asks about charts component, collection view, image view, web view, color well, image well, activity view, lockup, data visualization, content display, displaying images, rendering web content, color pickers, or presenting collections of items in Apple apps. Also use when the user says how should I display charts, what's the best way to show images, should I use a web view, how do I build a grid of items, what component shows media, or how do I present a share sheet. Cross-references: hig-foundations for color/typography/accessibility, hig-patterns for data visualization patterns, hig-components-layout for structural containers, hig-platforms for platform-specific component behavior.
react-components
Converts Stitch designs into modular Vite and React components using system-level networking and AST-based validation.
designing-components
Use this skill when you need to design a component
frontend-components
Build reusable, composable UI components with single responsibilities, clear prop interfaces, proper state management, and minimal coupling. Use this skill when creating or editing React components (.tsx, .jsx files), when designing component APIs with props, when implementing component composition patterns, when managing local component state, when building shadcn/ui components, when creating shared UI components in resources/js/Components/, when implementing component documentation, or when refactoring large components into smaller, focused pieces.