Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add OKHP3/skillz --skill vercel-react-native-skillsgit clone --depth 1 https://github.com/OKHP3/skillzWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/okhp3/skillz/vercel-react-native-skills)<a href="https://agentmods.dev/skills/okhp3/skillz/vercel-react-native-skills"><img src="https://agentmods.dev/badge/skills/okhp3/skillz/vercel-react-native-skills/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/okhp3/skillz/vercel-react-native-skills"><img src="https://agentmods.dev/badge/skills/okhp3/skillz/vercel-react-native-skills.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00057 | $0.01044 |
| Opus 5 | $0.00028 | $0.00522 |
| Sonnet 5 | $0.00011 | $0.00209 |
| Haiku 4.5 | $0.00006 | $0.00104 |
Grade A, and why
vercel-react-native-skills scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
This is a copy
100% identical to vercel-react-native-skills — 242 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 122 lines — stays where its author put it; the contents beside it link to each section on GitHub.
React Native Skills
Comprehensive best practices for React Native and Expo applications. Contains rules across multiple categories covering performance, animations, UI patterns, and platform-specific optimizations.
When to Apply
Reference these guidelines when:
- Building React Native or Expo apps
- Optimizing list and scroll performance
- Implementing animations with Reanimated
- Working with images and media
- Configuring native modules or fonts
- Structuring monorepo projects with native dependencies
Rule Categories by Priority
| Priority | Category | Impact | Prefix |
|---|---|---|---|
| 1 | List Performance | CRITICAL | list-performance- |
| 2 | Animation | HIGH | animation- |
| 3 | Navigation | HIGH | navigation- |
| 4 | UI Patterns | HIGH | ui- |
| 5 | State Management | MEDIUM | react-state- |
| 6 | Rendering | MEDIUM | rendering- |
| 7 | Monorepo | MEDIUM | monorepo- |
| 8 | Configuration | LOW | fonts-, imports- |
Quick Reference
1. List Performance (CRITICAL)
list-performance-virtualize- Use FlashList for large listslist-performance-item-memo- Memoize list item componentslist-performance-callbacks- Stabilize callback referenceslist-performance-inline-objects- Avoid inline style objectslist-performance-function-references- Extract functions outside renderlist-performance-images- Optimize images in listslist-performance-item-expensive- Move expensive work outside itemslist-performance-item-types- Use item types for heterogeneous lists
2. Animation (HIGH)
animation-gpu-properties- Animate only transform and opacityanimation-derived-value- Use useDerivedValue for computed animationsanimation-gesture-detector-press- Use Gesture.Tap instead of Pressable
What ships with it
41 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- agents.md 75 KB
- metadata.json 912 B
- README.md 5.1 KB
- rules/_sections.md 2.3 KB
- rules/_template.md 659 B
- rules/animation-derived-value.md 1.4 KB
- rules/animation-gesture-detector-press.md 2.6 KB
- rules/animation-gpu-properties.md 2.1 KB
- rules/design-system-compound-components.md 1.7 KB
- rules/fonts-config-plugin.md 1.4 KB
- rules/imports-design-system-folder.md 1.5 KB
- rules/js-hoist-intl.md 1.7 KB
- rules/list-performance-callbacks.md 1.1 KB
- rules/list-performance-function-references.md 4.2 KB
- rules/list-performance-images.md 1.4 KB
- rules/list-performance-inline-objects.md 2.3 KB
- rules/list-performance-item-expensive.md 2.5 KB
- rules/list-performance-item-memo.md 2.3 KB
- rules/list-performance-item-types.md 2.8 KB
- rules/list-performance-virtualize.md 1.8 KB
- rules/monorepo-native-deps-in-app.md 1.1 KB
- rules/monorepo-single-dependency-versions.md 1.4 KB
- rules/navigation-native-navigators.md 5.0 KB
- rules/react-compiler-destructure-functions.md 1.3 KB
- rules/react-compiler-reanimated-shared-values.md 1.3 KB
- rules/react-state-dispatcher.md 2.3 KB
- rules/react-state-fallback.md 1.7 KB
- rules/react-state-minimize.md 1.8 KB
- rules/rendering-no-falsy-and.md 1.8 KB
- rules/rendering-text-in-text-component.md 733 B
- rules/scroll-position-no-state.md 2.0 KB
- rules/state-ground-truth.md 2.2 KB
- rules/ui-expo-image.md 1.7 KB
- rules/ui-image-gallery.md 2.6 KB
- rules/ui-measure-views.md 2.3 KB
- rules/ui-menus.md 4.7 KB
- rules/ui-native-modals.md 1.9 KB
- rules/ui-pressable.md 1.6 KB
- rules/ui-safe-area-scroll.md 1.6 KB
- rules/ui-scrollview-content-inset.md 1.3 KB
- rules/ui-styling.md 2.2 KB
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 6d ago First seen · 122 lines · 57 tokens per session scan A c2e023faec60
vercel-react-native-skills is a skill published in the GitHub repository OKHP3/skillz (3 stars, last pushed yesterday), licensed MIT. It adds 57 tokens to every session and 1,044 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to vercel-react-native-skills, differing in 242 lines, and is treated as a copy.
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react-native
React Native and Expo patterns for building performant mobile apps. Covers list performance, animations with Reanimated, navigation, UI patterns, state management, platform-specific code, and Expo workflows. Use when building or reviewing React Native code. Triggers: 'react native', 'expo', 'mobile app', 'react native…
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vercel-react-native-skills
React Native and Expo best practices for building performant mobile apps. Use when building React Native components, optimizing list performance, implementing animations, or working with native modules. Triggers on tasks involving React Native, Expo, mobile performance, or native platform APIs.
react-native-optimizations
Provides React Native performance optimization guidelines for FPS, TTI, bundle size, memory leaks, re-renders, and animations. Applies to tasks involving Hermes optimization, JS thread blocking, bridge overhead, FlashList, native modules, or debugging jank and frame drops.