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Found 210 Skills
Use when setting up Wallet UI in a new or existing Expo application. Guides selection between modern @solana/kit (Recommended) or legacy @solana/web3.js.
Reference — all 20 Xcode MCP tools with parameters, return schemas, and examples
Autonomous mobile dev subagent that implements a single user story from a PRD for Expo / React Native apps. Use when you need parallel, independent mobile implementation tasks — screens, native components, data fetching, navigation. Designed to run alongside other ralph-mobile instances. Receives a specific task ID and PRD path. Returns a structured completion signal. Does NOT commit or modify the PRD — those are handled by the documenter. Loads expo, building-native-ui, vercel-react-native-skills, native-data-fetching, and expo-dev-client skills automatically.
Expert in data persistence, local-first architectures, and synchronization strategies for Capacitor/Android applications.
Flutter DevTools, Profiling, Logging & Memory Management
Build native and cross-platform mobile applications for iOS and Android with optimized performance and platform integration. Use when you need SwiftUI or Jetpack Compose development, React Native or Flutter cross-platform apps, offline-first architecture, biometric authentication, push notifications, deep linking, app startup optimization, or mobile-specific UX patterns and gesture handling.
Superwall quickstart for Flutter apps.
React Native and Expo patterns for navigation, data fetching lifecycle, infinite scroll lists, form handling, state persistence, authentication routing, gesture-driven animations, bottom sheets, push notifications, and OTA updates. Use when building Expo/React Native apps that need screen-level data prefetching, auth guards with protected routes, infinite scroll feeds, native form input handling, offline-capable state persistence, platform-specific setup (focus/online managers), fluid animations and gesture interactions, modal bottom sheets, push notification flows, or over-the-air update strategies. Do not use for React web apps.
API reference: TipKit. Tip protocol, TipView, PopoverTipView, Tips.configure, inline and popover tips.
PostHog integration for React Native applications
Manages iOS Simulator devices and tests app behavior using xcrun simctl. Covers device lifecycle (create, boot, shutdown, erase, delete), app install and launch, push notification simulation, location simulation, permission grants via privacy subcommand, deep link testing via openurl, status bar overrides, screenshot and video recording, log streaming with os_log filtering, get_app_container paths, and #if targetEnvironment(simulator) compile-time checks. Use when creating or managing simulator devices, testing push notifications without APNs, simulating GPS locations, granting or resetting privacy permissions, capturing screenshots or screen recordings from the command line, streaming device logs, debugging simulator boot failures, troubleshooting CoreSimulator issues, or checking simulator hardware limitations.
This skill should be used when the user asks to "test on iOS simulator", "run app on iPhone", "take iOS screenshot", "tap button in simulator", "automate iOS UI", "install app on simulator", "boot simulator", or when working with iOS apps, Xcode, Simulator, simctl, idb, UI automation, or iOS testing. It automates iOS Simulator workflows including device lifecycle (create/boot/erase), app management (install/launch), push notifications, privacy grants, screenshots, and accessibility-based UI navigation.