When should I use the ios-concurrency skill?

Use this skill whenever you encounter Swift 6 concurrency errors, data races, actor isolation issues, or when your app's UI freezes during heavy tasks.

Does it support the latest iOS 18 features?

Yes, it includes guidance on modern primitives like Mutex (iOS 18+), OSAllocatedUnfairLock (iOS 16+), and non-copyable types.

Can this skill help with Swift 6 migration?

Yes, it provides specific routing and patterns for migrating code to strict concurrency, handling Sendable warnings, and implementing actors.

How does this handle UI freezes versus general performance?

It prioritizes checking for main-thread blocking (the #1 cause of freezes) before moving to general profiling, solving the most common issues faster.

iOS Concurrency Expert

Name: iOS Concurrency Expert
Author: CharlesWiltgen

byCharlesWiltgen

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148

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Mobile Development

Optimizes Swift 6 concurrency patterns and resolves data races for modern xOS app development.

A specialized router skill designed for high-performance iOS, iPadOS, watchOS, and tvOS development. It provides expert guidance on Swift 6 concurrency, async/await, actor isolation, and Sendable conformance. Whether you are migrating legacy code, fixing UI freezes caused by main-thread blocking, or implementing advanced synchronization primitives like Mutex and non-copyable types, this skill ensures your code is thread-safe, performant, and follows the latest Apple architectural best practices.

Key Features

01Main Thread Blocking Prevention Patterns

02Swift 6 Strict Concurrency Migration

03Memory Ownership and Non-copyable Types

04148 GitHub stars

05Data Race and Actor Isolation Diagnosis

06Advanced Synchronization (Mutex, Locks, Atomics)

Use Cases

01Migrating existing iOS projects to Swift 6 strict concurrency mode

02Implementing high-performance thread-safe data structures for xOS apps

03Fixing UI responsiveness issues and main-thread hangs during data loading

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add charleswiltgen/axiom ios-concurrency

For use in Claude.ai and ChatGPT

Download Skill