vril-labs/skill-jam/mobile-app-debugging

Claude Code and agent skill by vril-labs/skill-jam

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Mobile app debugging for iOS, Android, cross-platform frameworks. Use for crashes, memory leaks, performance issues, network problems, or encountering Xcode instruments, Android Profiler, React Native debugger, native bridge errors.

Install

npx vskill@latest install vril-labs/skill-jam/mobile-app-debugging

SKILL.md

The same SKILL.md was published earlier as majiayu000/claude-skill-registry-data/mobile-app-debugging.

Mobile App Debugging

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

iOS Debugging (Xcode)

swift
// 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)

kotlin
// 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

javascript
// 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

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

Debug Checklist

  • [ ] Test on physical devices (not just simulators)
  • [ ] Test on older device models
  • [ ] Simulate slow 3G network
  • [ ] Test offline mode
  • [ ] Check memory under load
  • [ ] Test rotation and safe areas
  • [ ] Verify 60 FPS target

Performance Targets

MetricTarget
Frame rate60 FPS (16ms/frame)
Memory<100MB
App launch<2 seconds

Security

  • Security scanPassed, 90 of 100Pattern checks on the skill's files.
  • Model reviewPassed

See the full security report

Quality evaluation

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Source

Popularity

Repository stars
2
7-day trend score
10

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