Write and run tests for React Native apps using Jest and React Native Testing Library. Use when creating tests, debugging failures, or setting up test infrastructure.
Use to plan unit tests for mobile logic — Jest (or Vitest where supported) for pure functions, hooks, reducers, and utilities.
Use skill if you are controlling, automating, or testing a connected Android phone via the mobilerun CLI — tapping, typing, swiping, reading the screen, or running a multi-step…
Utilize built-in browser APIs (like Popover API, View Transitions etc) instead of building features manually via JavaScript
Modern Java study assistant backed by a public-safe graph extracted from private OCR-derived notes. Use when Codex needs to reason about Java lambdas, functional interfaces,…
Comprehensive guide for mastering modern JavaScript (ES6+) features, functional programming patterns, and best practices for writing clean, maintainable, and performant code.
Master ES6+ features including async/await, destructuring, spread operators, arrow functions, promises, modules, iterators, generators, and functional programming patterns for…
Configures Python projects with modern tooling (uv, ruff, ty). Use when creating projects, writing standalone scripts, or migrating from pip/Poetry/mypy/black.
Modern Python toolchain substrate. uv for installs and venvs, ruff for lint and format, ty for typecheck, pytest for tests, hypothesis for property-based tests, src/ layout,…
Expert knowledge for writing cutting-edge, idiomatic Rust code with Rust Edition 2024, strict clippy compliance, and functional-but-pragmatic philosophy.
Modern web development best practices for TypeScript, Next.js 14, React Server Components, Supabase, GraphQL, and Tailwind CSS.
legacy workaround を避け、semantic HTML / Web Platform Native API / modern CSS の利用機会を提示する。
Build and deploy the same feature consistently across web, mobile, and desktop platforms using API-first architecture and parallel implementation strategies.
Build and deploy the same feature consistently across web, mobile, and desktop platforms using API-first architecture and parallel implementation strategies.
Route a native Apple-platform task to the right skill among the iOS specialists — Swift 6.2 concurrency, SwiftUI architecture, actor persistence, protocol-based DI/testing,…
SwiftUI navigation architecture patterns including NavigationStack, NavigationSplitView, TabView, programmatic navigation, and custom transitions.
Use when the user wants to scaffold, bootstrap, or create a new Android project from scratch. Produces an opinionated single-module Compose app with Metro DI, Circuit (Slack)…
A source-backed ASE skill for Nightwatch.js, the Node.js automation framework for end-to-end, component, API, accessibility, and mobile testing through the W3C WebDriver stack.
Capture and inspect iOS leaks and memgraphs. Use when debugging leaked objects, retain cycles, memory growth, or before/after leak evidence.
Refactor SwiftUI view files into stable, testable structure. Use when splitting large views, tightening data flow, or cleaning Observation ownership.
Choose, lay out, critique, and explain data visualizations. Use when the user asks what visualization fits a dataset or goal, how a chart, dashboard, operational workspac — from…
OpenAI Codex Plugins — collection plugin examples cho Codex AI coding agent: Figma, Notion, iOS (SwiftUI), Expo, Netlify, Remotion, Google Slides. Plugin manifest format.
Guide for writing Expo native modules and views using the Expo Modules API (Swift, Kotlin, TypeScript).
`@expo/ui/swift-ui` package lets you use SwiftUI Views and modifiers in your app. — from phamlongh230-lgtm/yamtam-engine
Use when implementing or debugging ANY network request, API call, or data fetching. Covers fetch API, React Query, SWR, error handling, caching, offline support, and Expo — from…
Use when validating Android feature flows in an emulator with adb-driven launch, input, UI-tree inspection, screenshots, and logcat capture. — from phamlongh230-lgtm/yamtam-engine
Gather and interpret Android performance evidence on an adb target using Simpleperf CPU profiles, Perfetto or Compose traces, gfxinfo frame data, dumpsys meminfo snapshot — from…
Implémentation du pattern Outbox et Saga pour garantir la cohérence transactionnelle dans les architectures microservices.
Use when you need to publish a message to Kafka / RabbitMQ / SNS atomically with a database commit, when fixing the dual-write hazard between DB and broker, deciding between…
Analyzes codebase to learn project-specific patterns including code style, architecture conventions, and testing approaches
Expert guidance for Pixi.js game development with TypeScript, focusing on high-performance web and mobile games
Use when the user wants to plan, decompose, track, or resume a multi-task project: scoping a new idea, importing or onboarding an existing repo or workspace, asking what — from…
Core planning principles for Portfolio Buddy 2 development. Use when: planning any feature implementation, modification, or refactoring.
Use when the UI needs Android-specific navigation patterns, adaptive layouts, Material expectations, or Android-native component behavior.
Use when the UI needs iOS-specific navigation, spacing, touch ergonomics, motion restraint, safe areas, or Apple-native interface adaptation.
Doc-driven platform integration expert. Converts a web app to LINE MINI App (LIFF SDK), PWA (Next.js 16), and Capacitor (iOS/Android). Expo & Tauri are secondary/legacy.
A modern replacement for ps written in Rust. procs provides colorized, human-readable process listings with multi-column keyword search, TCP/UDP port display, Docker container…
Mobile app testing strategy and execution for iOS and Android. Cover device matrix, automation frameworks, performance, reliability, and release gates.
Reflexion verbal reinforcement learning — Actor/Evaluator/Self-Reflector loop with episodic memory. No gradient updates. ALFWorld +X% over ReAct, HumanEval SOTA at publish time.
Generates production-grade Reqnroll BDD automation scripts for web (Selenium 3/4) and mobile (Appium 2) testing in C#.
Use when completing tasks, implementing major features, or before merging to verify work meets requirements — from majiayu000/claude-skill-registry
Resilience patterns for AI agent external calls. Circuit breakers, exponential backoff with jitter, stream recovery, batch error handling, and log fallback under disk pressure.
Memory- and resource-safety code review for modern C/C++ (C++17), including Node.js native addons (node-addon-api / Node-API).
RevenueCat SDK entegrasyon pattern'leri. iOS (Swift), Android (Kotlin), React Native ve Flutter icin setup, offerings, entitlement checking, webhook integration, StoreKit 2…
Reverse engineers iOS applications using Frida dynamic instrumentation to understand internal logic, extract
Uses Riverpod for state management in Flutter/Dart. Use when setting up providers, combining requests, managing state disposal, passing arguments, performing side effects, testing…
Async/await correctness in React Native with Zustand. Use when debugging race conditions, missing awaits, floating promises, or async timing issues in Expo/React Native apps.
React Native authentication patterns for Expo apps. Use when implementing login flows, Google/Apple sign-in, token management, session handling, or debugging auth issues — from…
React Native authentication patterns for Expo apps. Use when implementing login flows, Google/Apple sign-in, token management, session handling, or debugging auth issues — from…
React Native (Expo) アプリの総合デバッグスキル。 再レンダリング調査、白い画面、ネイティブモジュールエラー、Firebase接続問題、 API通信エラーなどのトラブルシューティングを体系的に行う。 Use when: 「白い画面」「画面が表示されない」「エラーが出る」「動かない」…
React Native uygulamada Firebase modüllerinin (Auth/Firestore/Storage/Crashlytics vb.) entegrasyonunu projeye uygun standartta uygulat; config, environment ve güvenli kullanım…
React Native / Expo モバイルアプリ開発の専門サブエージェント。 コンポーネント実装、パフォーマンス最適化、ナビゲーション設計、アニメーション実装を担当する。 vercel-react-native-skills の36ルールを内蔵。 トリガー: React…
Logging, error messages, and debugging patterns for React Native. Use when adding logging, designing error messages, debugging production issues, or improving code observability.
Performance optimization for React Native. Use when optimizing lists, preventing re-renders, memoizing components, or debugging performance issues in Expo/React Native apps.
Complex multi-step operations in React Native. Use when implementing flows with multiple async steps, state machine patterns, or debugging flow ordering issues.
Styling patterns for React Native with NativeWind and BrandColors. Use when working with styles, themes, colors, responsive layouts, or platform-specific UI in Expo/React Native.
Testing patterns for React Native with Jest and React Native Testing Library. Use when writing tests, mocking Expo modules, testing Zustand stores, or debugging test failures.
Zustand state management patterns for React Native. Use when working with Zustand stores, debugging state timing issues, or implementing async actions in Zustand.
Detects seven structural anti-patterns in Claude Projects that cause unpredictable output, ignored instructions, and degraded quality.
Build 3D and WebXR (AR/VR) experiences in the browser with SceneView for Web — Filament.js (WebGL2/WASM) wrapped in a Kotlin/JS DSL and a plain-JavaScript API on…