Comprehensive performance optimization guide for Expo React Native applications. Contains 42 rules across 8 categories, prioritized by impact to guide automated refactoring and code generation.
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Before installing skills in Cursor, ensure your development environment meets these requirements:
node --versionexpo-react-native-performanceExecute the skills CLI command in your project's root directory to begin installation:
Fetches expo-react-native-performance from pproenca/dot-skills and configures it for Cursor.
The CLI shows a list of agents. Use arrow keys and space to select Cursor:
Confirm successful installation by checking the skill directory location:
Restart Cursor to activate expo-react-native-performance. Access via /expo-react-native-performance in your agent's command palette.
We perform automated surface-level scans (Gen AI Scanner, Socket, Snyk) during installation. These checks detect common vulnerabilities but do not guarantee complete security. Always review skill source code and verify the publisher's reputation before production use.
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Comprehensive performance optimization guide for Expo React Native applications. Contains 42 rules across 8 categories, prioritized by impact to guide automated refactoring and code generation.
Reference these guidelines when:
| Priority | Category | Impact | Prefix |
|---|---|---|---|
| 1 | App Startup & Bundle Size | CRITICAL | startup- |
| 2 | List Virtualization | CRITICAL | list- |
| 3 | Re-render Optimization | HIGH | rerender- |
| 4 | Animation Performance | HIGH | anim- |
| 5 | Image & Asset Loading | MEDIUM-HIGH | asset- |
| 6 | Memory Management | MEDIUM | mem- |
| 7 | Async & Data Fetching | MEDIUM | async- |
| 8 | Platform Optimizations | LOW-MEDIUM | platform- |
startup-enable-hermes - Enable Hermes JavaScript enginestartup-remove-console-logs - Remove console logs in productionstartup-splash-screen-control - Control splash screen visibilitystartup-preload-assets - Preload critical assets during splashstartup-async-routes - Use async routes for code splittingstartup-cherry-pick-imports - Use direct imports instead of barrel fileslist-use-flashlist - Use FlashList instead of FlatListlist-estimated-item-size - Provide accurate estimatedItemSizelist-get-item-type - Use getItemType for mixed listslist-stable-render-item - Stabilize renderItem with useCallbacklist-get-item-layout - Provide getItemLayout for fixed heightslist-memoize-items - Memoize list item componentsrerender-use-memo-expensive - Memoize expensive computationsrerender-use-callback-handlers - Stabilize callbacks with useCallbackrerender-functional-setstate - Use functional setState updatesrerender-lazy-state-init - Use lazy state initializationrerender-split-context - Split context by update frequencyrerender-derive-state - Derive state instead of syncinganim-use-native-driver - Enable native driver for animationsanim-use-reanimated - Use Reanimated for complex animationsanim-layout-animation - Use LayoutAnimation for simple transitionsanim-transform-not-dimensions - Animate transform instead of dimensionsanim-interaction-manager - Defer heavy work during animationsasset-use-expo-image - Use expo-image for image loadingasset-prefetch-images - Prefetch images before displayasset-optimize-image-size - Request appropriately sized imagesasset-use-webp-format - Use WebP format for imagesasset-recycling-key - Use recyclingKey in FlashList imagesmem-cleanup-subscriptions - Clean up subscriptions in useEffectmem-clear-timers - Clear timers on unmountmem-abort-fetch - Abort fetch requests on unmountmem-avoid-inline-objects - Avoid inline objects in propsmem-limit-list-data - Limit list data in memoryasync-parallel-fetching - Fetch independent data in parallelasync-defer-await - Defer await until value neededasync-batch-api-calls - Batch related API callsasync-cache-responses - Cache API responses locallyasync-refetch-on-focus - Refetch data on screen focusplatform-android-overdraw - Reduce Android overdrawplatform-ios-text-rendering - Optimize iOS text renderingplatform-android-proguard - Enable ProGuard for Android releaseplatform-conditional-render - Platform-specific optimizationsRead individual reference files for detailed explanations and code examples:
For the complete guide with all rules expanded, see AGENTS.md.
| File | Description |
|---|---|
| AGENTS.md | Complete compiled guide with all rules |
| references/_sections.md | Category definitions and ordering |
| assets/templates/_template.md | Template for new rules |
| metadata.json | Version and reference information |
Prerequisites
Time Estimate
15-45 minutes depending on use case complexity
Steps
Common Pitfalls
✓ Do
✗ Don't
💡 Pro Tips
✓ Use when
Use when skill capabilities match your task, clear ROI on time saved, and you can validate outputs. Best for repetitive tasks, learning, and quality improvement.
✗ Avoid when
Avoid when task requires deep expertise you can't validate, involves sensitive decisions, or when learning process is more valuable than speed of completion.
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Keeps context tight: expo-react-native-performance is the kind of skill you can hand to a new teammate without a long onboarding doc.
expo-react-native-performance fits our agent workflows well — practical, well scoped, and easy to wire into existing repos.
expo-react-native-performance is among the better-maintained entries we tried; worth keeping pinned for repeat workflows.
Solid pick for teams standardizing on skills: expo-react-native-performance is focused, and the summary matches what you get after install.
expo-react-native-performance has been reliable in day-to-day use. Documentation quality is above average for community skills.
Registry listing for expo-react-native-performance matched our evaluation — installs cleanly and behaves as described in the markdown.
expo-react-native-performance fits our agent workflows well — practical, well scoped, and easy to wire into existing repos.
expo-react-native-performance has been reliable in day-to-day use. Documentation quality is above average for community skills.
Solid pick for teams standardizing on skills: expo-react-native-performance is focused, and the summary matches what you get after install.
expo-react-native-performance reduced setup friction for our internal harness; good balance of opinion and flexibility.
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