debugging-instruments

Diagnoses iOS app crashes, memory leaks, and performance bottlenecks using LLDB, Memory Graph, and Instruments.

Updated Jul 12, 2026
One-click install
npx skills add https://github.com/yashpalsince2004/National_academy_app --skill debugging-instruments-yashpalsince2004
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: debugging-instruments
Source: https://github.com/yashpalsince2004/National_academy_app/tree/main/Mobile/.agents/skills/debugging-instruments
Command: npx skills add https://github.com/yashpalsince2004/National_academy_app --skill debugging-instruments-yashpalsince2004

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill provides a comprehensive set of tools for diagnosing performance issues in iOS apps, including crashes, memory leaks, retain cycles, and slow rendering.

Core Features & Use Cases

  • LLDB Debugging: Essential LLDB commands, breakpoint management, and expression evaluation.
  • Memory Graph Debugger: Workflow for identifying and fixing memory leaks and retain cycles.
  • Instruments: Profiling tools for CPU, memory, energy, and network usage.
  • Use Case: When encountering crashes or performance bottlenecks in your iOS app, this Skill can help identify the root cause using the various debugging and profiling tools provided.

Quick Start

Analyze your iOS app's performance by profiling it using the Time Profiler template in Instruments and checking for memory leaks with the Leaks template.

Frequently Asked Questions about debugging-instruments

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I find memory leaks and retain cycles in my iOS app?

To find memory leaks and retain cycles in your iOS app, use the Memory Graph Debugger alongside the Instruments Leaks template. These diagnostic workflows capture object allocation graphs and identify strong reference cycles causing memory leaks.

What is the best way to profile iOS app performance for CPU and energy usage?

Profiling iOS app performance for CPU and energy usage is best done using the Instruments Time Profiler template. It tracks CPU resource consumption and energy usage to pinpoint slow rendering and performance bottlenecks in your application.

Can I use LLDB commands to diagnose crashes in an iOS application?

Yes, you can use LLDB commands to diagnose crashes in an iOS application. LLDB provides essential breakpoint management and expression evaluation capabilities to inspect application state and identify the root cause of crashes.

Do I need Instruments and LLDB installed to use these iOS debugging workflows?

Yes, you need LLDB, Memory Graph Debugger, and Instruments installed on your development environment. These tools are required to execute the provided diagnostic workflows for crashes, memory issues, and performance optimization.

Why does my iOS app experience slow rendering during profiling?

Slow rendering during iOS app profiling typically stems from CPU bottlenecks or memory issues. Using the Time Profiler template in Instruments helps identify these performance bottlenecks by tracking CPU resource consumption and execution time.

When should I use the Memory Graph Debugger instead of Instruments?

Use the Memory Graph Debugger instead of Instruments when you need to inspect live object allocation graphs to fix complex retain cycles. Use Instruments when you need to profile broader performance metrics like CPU, energy, and network usage.