121 lines
4.4 KiB
Markdown
121 lines
4.4 KiB
Markdown
---
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name: react-native-skills
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description: "Use when working with react-native-skills tasks or workflows"
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risk: safe
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source: "https://github.com/vercel-labs/agent-skills"
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date_added: "2026-06-02"
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---
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# React Native Skills
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Comprehensive best practices for React Native and Expo applications. Contains
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rules across multiple categories covering performance, animations, UI patterns,
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and platform-specific optimizations.
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## When to Use
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Reference these guidelines when:
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- Building React Native or Expo apps
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- Optimizing list and scroll performance
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- Implementing animations with Reanimated
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- Working with images and media
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- Configuring native modules or fonts
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- Structuring monorepo projects with native dependencies
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## Rule Categories by Priority
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| Priority | Category | Impact | Prefix |
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| -------- | ---------------- | -------- | -------------------- |
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| 1 | List Performance | CRITICAL | `list-performance-` |
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| 2 | Animation | HIGH | `animation-` |
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| 3 | Navigation | HIGH | `navigation-` |
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| 4 | UI Patterns | HIGH | `ui-` |
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| 5 | State Management | MEDIUM | `react-state-` |
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| 6 | Rendering | MEDIUM | `rendering-` |
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| 7 | Monorepo | MEDIUM | `monorepo-` |
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| 8 | Configuration | LOW | `fonts-`, `imports-` |
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## Quick Reference
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### 1. List Performance (CRITICAL)
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- `list-performance-virtualize` - Use FlashList for large lists
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- `list-performance-item-memo` - Memoize list item components
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- `list-performance-callbacks` - Stabilize callback references
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- `list-performance-inline-objects` - Avoid inline style objects
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- `list-performance-function-references` - Extract functions outside render
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- `list-performance-images` - Optimize images in lists
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- `list-performance-item-expensive` - Move expensive work outside items
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- `list-performance-item-types` - Use item types for heterogeneous lists
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### 2. Animation (HIGH)
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- `animation-gpu-properties` - Animate only transform and opacity
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- `animation-derived-value` - Use useDerivedValue for computed animations
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- `animation-gesture-detector-press` - Use Gesture.Tap instead of Pressable
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### 3. Navigation (HIGH)
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- `navigation-native-navigators` - Use native stack and native tabs over JS navigators
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### 4. UI Patterns (HIGH)
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- `ui-expo-image` - Use expo-image for all images
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- `ui-image-gallery` - Use Galeria for image lightboxes
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- `ui-pressable` - Use Pressable over TouchableOpacity
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- `ui-safe-area-scroll` - Handle safe areas in ScrollViews
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- `ui-scrollview-content-inset` - Use contentInset for headers
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- `ui-menus` - Use native context menus
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- `ui-native-modals` - Use native modals when possible
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- `ui-measure-views` - Use onLayout, not measure()
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- `ui-styling` - Use StyleSheet.create or Nativewind
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### 5. State Management (MEDIUM)
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- `react-state-minimize` - Minimize state subscriptions
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- `react-state-dispatcher` - Use dispatcher pattern for callbacks
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- `react-state-fallback` - Show fallback on first render
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- `react-compiler-destructure-functions` - Destructure for React Compiler
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- `react-compiler-reanimated-shared-values` - Handle shared values with compiler
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### 6. Rendering (MEDIUM)
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- `rendering-text-in-text-component` - Wrap text in Text components
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- `rendering-no-falsy-and` - Avoid falsy && for conditional rendering
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### 7. Monorepo (MEDIUM)
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- `monorepo-native-deps-in-app` - Keep native dependencies in app package
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- `monorepo-single-dependency-versions` - Use single versions across packages
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### 8. Configuration (LOW)
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- `fonts-config-plugin` - Use config plugins for custom fonts
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- `imports-design-system-folder` - Organize design system imports
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- `js-hoist-intl` - Hoist Intl object creation
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## How to Use
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Read individual rule files for detailed explanations and code examples:
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```
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rules/list-performance-virtualize.md
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rules/animation-gpu-properties.md
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```
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Each rule file contains:
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- Brief explanation of why it matters
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- Incorrect code example with explanation
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- Correct code example with explanation
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- Additional context and references
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## Full Compiled Document
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For the complete guide with all rules expanded: `AGENTS.md`
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## Limitations
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- Use this skill only when the task clearly matches the scope described above.
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- Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
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- Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.
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