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Drive an iOS Simulator from the command line to capture screenshots of specific app screens (not just the launch screen). Build, install, launch, navigate by tapping coordinates calculated from screenshots, and save PNGs to a docs folder. Use when an agent needs to produce app screenshots for a README, design review, or release notes — and the user can't or doesn't want to take them by hand.

Comprehensively reviews SwiftUI code for best practices on modern APIs, maintainability, and performance. Use when reading, writing, or reviewing SwiftUI projects.

Master Material Design 3 and Jetpack Compose patterns for building native Android apps. Use when designing Android interfaces, implementing Compose UI, or following Google's Material Design guidelines.