skills.rest
Emasoft
EmasoftCOMMUNITY
Explore all skills by this author →
Website𝕏@fmuaddibGitHub

ios-debugging

Diagnose iOS, macOS, watchOS, and visionOS crashes using backtraces and LLDB.

1|Updated Jun 9, 2026
Search Tags:#lldb#swift-concurrency#memory-leaks#debug-log#crash-triage#ios-debugging#swiftui-crashes
One-click install
npx skills add https://github.com/Emasoft/emasoft-complete-ios-app-authoring --skill ios-debugging
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: ios-debugging
Source: https://github.com/Emasoft/emasoft-complete-ios-app-authoring/tree/main/skills/ios-debugging
Command: npx skills add https://github.com/Emasoft/emasoft-complete-ios-app-authoring --skill ios-debugging

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill eliminates the guesswork and wasted time when debugging iOS, macOS, watchOS, and visionOS apps, providing a systematic, evidence-based workflow to diagnose crashes, hangs, build errors, concurrency violations, memory leaks, and wrong runtime behavior instead of patching symptoms.

Core Features & Use Cases

  • Crash & Hang Triage: Symbolicate and classify crash logs (EXC_BAD_ACCESS, SIGABRT, watchdog 0x8BADF00D, jetsam OOM), capture live backtraces with LLDB, and identify the root cause from the crashing thread's first app frame.
  • Concurrency & Memory Debugging: Fix Swift 6 actor isolation violations, @MainActor/Sendable bugs, retain cycles, and memory leaks using sanitizers, Instruments, and structured inspection workflows.
  • Proactive Bug Detection: Use the 7 assumption lenses to find hidden bugs in code that compiles and passes tests, and maintain a DEBUG_LOG knowledge base to log prevention rules and avoid recurring issues.
  • Use Case: For example, when a user reports a crash after tapping a button on a specific screen, use this Skill to capture the backtrace, rule out the obvious symptom, identify the actual root cause (such as a dynamic UIColor provider crashing on the AsyncRenderer thread), fix it, and log a prevention rule to stop the bug from reappearing.

Quick Start

Use the ios-debugging skill to analyze the provided crash log or backtrace, identify the root cause of the reported iOS app issue, and deliver a step-by-step fix with a preventive rule to avoid recurrence.

Frequently Asked Questions about ios-debugging

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

FAQPage Schema
How do I diagnose an iOS crash from a backtrace using LLDB?▼

To diagnose an iOS crash using LLDB, capture the live backtrace, symbolicate the crash log, and identify the root cause from the crashing thread's first app frame using an evidence-based workflow.

What is the best way to fix Swift 6 actor isolation violations and concurrency bugs?▼

Fixing Swift 6 actor isolation violations requires using sanitizers and structured inspection workflows to identify @MainActor or Sendable bugs, enforcing root-cause fixes over symptom patches.

How do I hunt down memory leaks and retain cycles in a SwiftUI app?▼

Hunting down memory leaks and retain cycles in SwiftUI involves using Instruments and structured inspection workflows to systematically identify and resolve the leaking references.

Can I use this debugging workflow for watchOS and visionOS runtime crashes?▼

Yes, this debugging workflow applies to watchOS and visionOS runtime crashes, hangs, and build errors, utilizing the same backtrace-first methodology and LLDB tooling.

How do I symbolicate crash logs like EXC_BAD_ACCESS and watchdog timeouts?▼

To symbolicate crash logs like EXC_BAD_ACCESS and watchdog 0x8BADF00D, classify the crash type and extract the root cause from the crashing thread's first app frame.

How do I find hidden bugs in Swift code that compiles and passes tests?▼

Finding hidden bugs in passing Swift code involves applying seven assumption lenses to proactively detect issues and logging prevention rules to a DEBUG_LOG knowledge base to avoid recurrence.

Related Skills

Explore More Software Engineering Skills→
open-foxopen-fox
54

issue-analyzer

Analyze crash stacks and logs to produce root-cause reports with fix recommendations.

Community
Advanced
robwestzrobwestz

every-style-editor

Identify and fix style-guide violations in copy with line-by-line feedback.

Community
Intermediate
LaughingJackalopeLaughingJackalope
1

debugging-macos

Diagnose macOS 26+ app crashes, hangs, leaks, and sandbox violations with LLDB, Instruments, os_log, and dtrace.

Community
Advanced
tranceetrancee

swift6-concurrency-migration

Migrate Swift code to Swift 6 strict concurrency by resolving Sendable and actor-isolation diagnostics.

Community
Advanced