Skill

mobile-app-debugging

Debugs iOS, Android, and React Native mobile apps for crashes, memory leaks, performance issues, network problems using Xcode Instruments, Android Profiler, LLDB, Logcat.

iOS

Android

Install

npx claudepluginhub secondsky/claude-skills --plugin mobile-app-debugging

Tool Access

This skill uses the workspace's default tool permissions.

Preview

Debug mobile applications across iOS, Android, and cross-platform frameworks.

SKILL.md

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Stats

Parent Repo Stars99

Parent Repo Forks12

Last CommitApr 2, 2026

Actions

View Source View Plugin View on GitHub View README

Mobile App Debugging

Debug mobile applications across iOS, Android, and cross-platform frameworks.

iOS Debugging (Xcode)

// Breakpoint with condition
// Right-click breakpoint > Edit > Condition: userId == "123"

// LLDB commands
po variable          // Print object
p expression         // Evaluate expression
bt                   // Backtrace

Memory Debugging

Use Memory Graph Debugger to find retain cycles
Enable Zombie Objects for use-after-free bugs
Profile with Instruments > Leaks

Android Debugging (Android Studio)

// Logcat filtering
Log.d("TAG", "Debug message")
Log.e("TAG", "Error", exception)

// Filter: tag:MyApp level:error

Common Issues

ANR: Check main thread blocking
OOM: Profile with Memory Profiler
Layout issues: Use Layout Inspector

React Native

// Remote debugging
// Shake device > Debug JS Remotely

// Console logging
console.log('Debug:', variable);
console.warn('Warning');
console.error('Error');

// Performance Monitor
// Shake > Show Perf Monitor
// Target: 60 FPS, <16ms per frame

Network Debugging

// Intercept requests
XMLHttpRequest.prototype._send = XMLHttpRequest.prototype.send;
XMLHttpRequest.prototype.send = function() {
  console.log('Request:', this._url);
  this._send.apply(this, arguments);
};

Debug Checklist

Performance Targets

Metric	Target
Frame rate	60 FPS (16ms/frame)
Memory	<100MB
App launch	<2 seconds