Mobile Development Skill — Quick Reference Skill

Mobile Development Skill — Quick Reference

This skill equips mobile developers with execution-ready patterns for building native and cross-platform mobile applications. Claude should apply these patterns when users ask for iOS/Android app architecture, UI components, navigation flows, API integration, offline storage, authentication, or mobile-specific features.

When to Use This Skill

Claude should invoke this skill when a user requests:

iOS app development (Swift, SwiftUI, UIKit)
Android app development (Kotlin, Jetpack Compose)
Cross-platform development (React Native, WebView)
Mobile app architecture and patterns
Navigation and routing
State management (Redux, MobX, MVVM)
Network requests and API integration
Local data storage (Core Data, Room, SQLite)
Authentication and session management
Push notifications
Camera and media access
Location services
App Store / Play Store deployment
Mobile performance optimization
Offline-first architecture

Quick Reference Table

| Task | iOS | Android | Cross-Platform | When to Use | |------|-----|---------|----------------|-------------| | Native UI | SwiftUI + UIKit | Jetpack Compose + Views | React Native | Native: Best performance; Cross-platform: Code sharing | | Navigation | NavigationStack | Navigation Component | React Navigation | Platform-specific for native feel | | State Management | @State/@Observable | ViewModel + StateFlow | Redux/MobX | iOS: @Observable; Android: ViewModel; RN: Redux | | Networking | URLSession + async/await | Retrofit + Coroutines | Axios/Fetch | Native: Type-safe; RN: JavaScript ecosystem | | Local Storage | Core Data + SwiftData | Room Database | AsyncStorage/SQLite | Native: Full control; RN: Simpler | | Push Notifications | APNs | FCM | React Native Firebase | Native: Platform-specific; RN: Unified API |

Decision Tree: Platform Selection

Need to build mobile app for: [Target Audience]
    ├─ iOS only?
    │   └─ Use Swift + SwiftUI (templates/swift/)
    │
    ├─ Android only?
    │   └─ Use Kotlin + Jetpack Compose (templates/kotlin/)
    │
    ├─ Both iOS and Android?
    │   ├─ Need maximum performance?
    │   │   └─ Build separate native apps (Swift + Kotlin)
    │   │
    │   ├─ Need faster development + code sharing?
    │   │   └─ Use React Native (templates/cross-platform/)
    │   │
    │   └─ Wrapping existing web app?
    │       └─ Use WebView wrapper (templates/cross-platform/template-webview.md)

Navigation

Resources

resources/ios-best-practices.md — iOS architecture, concurrency, testing, and performance
resources/android-best-practices.md — Android/Kotlin architecture, coroutines, Compose, testing, performance
README.md — Folder overview and usage notes
data/sources.json — Curated external references by platform

Templates

Related Skills

../software-frontend/SKILL.md — Web-facing UI patterns and Next.js integration
../software-backend/SKILL.md — API design, auth, and backend contracts for mobile clients
../software-testing-automation/SKILL.md — Mobile CI, test strategy, and reliability gates
../quality-resilience-patterns/SKILL.md — Resilience patterns for networked mobile apps

Operational Playbooks

resources/operational-playbook.md — Mobile architecture patterns, platform-specific guides, security notes, and decision tables

Agent Skills: Mobile Development Skill — Quick Reference

Skill Files