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 agentmods add skills/atman36/codex-maintainer-kit/react-native-skillsnpx skills add Atman36/codex-maintainer-kit --skill react-native-skillsgit clone --depth 1 https://github.com/Atman36/codex-maintainer-kitWhat 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 | $0.00057 | $0.01040 |
| Opus 5 | $0.00028 | $0.00520 |
| Sonnet 5 | $0.00011 | $0.00208 |
| 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 2d 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 — 0 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 72 KB
- metadata.json 896 B
- README.md 4.9 KB
- rules/_sections.md 2.2 KB
- rules/_template.md 631 B
- rules/animation-derived-value.md 1.3 KB
- rules/animation-gesture-detector-press.md 2.5 KB
- rules/animation-gpu-properties.md 2.0 KB
- rules/design-system-compound-components.md 1.6 KB
- rules/fonts-config-plugin.md 1.4 KB
- rules/imports-design-system-folder.md 1.4 KB
- rules/js-hoist-intl.md 1.6 KB
- rules/list-performance-callbacks.md 1.0 KB
- rules/list-performance-function-references.md 4.0 KB
- rules/list-performance-images.md 1.4 KB
- rules/list-performance-inline-objects.md 2.3 KB
- rules/list-performance-item-expensive.md 2.4 KB
- rules/list-performance-item-memo.md 2.2 KB
- rules/list-performance-item-types.md 2.7 KB
- rules/list-performance-virtualize.md 1.7 KB
- rules/monorepo-native-deps-in-app.md 1.1 KB
- rules/monorepo-single-dependency-versions.md 1.3 KB
- rules/navigation-native-navigators.md 4.8 KB
- rules/react-compiler-destructure-functions.md 1.2 KB
- rules/react-compiler-reanimated-shared-values.md 1.2 KB
- rules/react-state-dispatcher.md 2.2 KB
- rules/react-state-fallback.md 1.7 KB
- rules/react-state-minimize.md 1.7 KB
- rules/rendering-no-falsy-and.md 1.8 KB
- rules/rendering-text-in-text-component.md 697 B
- rules/scroll-position-no-state.md 1.9 KB
- rules/state-ground-truth.md 2.1 KB
- rules/ui-expo-image.md 1.6 KB
- rules/ui-image-gallery.md 2.5 KB
- rules/ui-measure-views.md 2.2 KB
- rules/ui-menus.md 4.5 KB
- rules/ui-native-modals.md 1.8 KB
- rules/ui-pressable.md 1.5 KB
- rules/ui-safe-area-scroll.md 1.5 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.
- 2d ago First seen · 122 lines · 57 tokens per session scan A 4012750a5ccb
vercel-react-native-skills is a skill published in the GitHub repository Atman36/codex-maintainer-kit (2 stars, last pushed 3mo ago), licensed MIT. It adds 57 tokens to every session and 1,040 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 0 lines, and is treated as a copy.
Other skills, from other repositories
apple-app-store-reviewer
Audit Apple-platform apps before App Store submission or resubmission. Use for iOS, iPadOS, macOS, tvOS, watchOS, and visionOS release reviews involving source code, archives or IPAs, App Store Connect metadata, screenshots, subscriptions, login, privacy manifests, AI features, UGC, age ratings, review notes, or an…
designing-hardware-products
AI-automated hardware product pipeline: from requirements to manufacturable Gerber + compiled firmware + cross-platform app. Orchestrates system design, ESP-IDF firmware, KiCad PCB, UniApp client, and release packaging in a zero-human-touch flow.
developing-mobile-apps
Mobile development knowledge reference covering iOS (SwiftUI), Android (Jetpack Compose), React Native, and Flutter. Use when building mobile apps, working with cross-platform frameworks, or implementing native UI patterns.
mobilevc-installer
Install and start MobileVC — a Claude Code mobile workspace launcher that lets the user run Claude Code on a phone (iOS / Android) with their dev machine as the backend. Use this skill when the user asks to: "install mobilevc" / "set up mobilevc" / "装一个 mobilevc" "在手机上用 Claude Code" / "want to use Claude Code on my…
expo-react-native-builder
Build or audit a production Expo and React Native application across Expo Router, development builds, native modules, state/data, persistence, offline behavior, animation/gestures, accessibility, testing, performance, security, observability, EAS builds/updates, and store release. Use when Expo/React Native is…
flutter-production-builder
Build or audit a production Flutter application across architecture, state, routing, networking, serialization, persistence, offline-first behavior, platform integration, adaptive UI, accessibility, testing, performance, security, observability, and release. Use when Flutter is selected or already established. Do not…