Swift Concurrency Expert

What it does

This skill enables AI agents to understand and implement concurrency patterns in Swift, including async/await, actors, and task management. It provides guidance on writing efficient, non-blocking code for iOS and macOS applications.

When to use it

• You're developing a Swift app that requires asynchronous operations like network requests or file I/O.
• You need to manage shared resources safely across multiple threads in a SwiftUI or UIKit project.
• You want to optimize performance by parallelizing computationally intensive tasks.

Key capabilities

• Explains Swift's concurrency model and its differences from traditional GCD and OperationQueue.
• Offers best practices for using async/await, actors, and task groups.
• Helps identify and resolve common concurrency issues like race conditions and deadlocks.

Example prompts

• "How do I use async/await to fetch data from an API in Swift?"
• "Can you explain how to safely share a mutable object between multiple threads using actors?"
• "I'm getting a deadlock when using DispatchQueue; can you help me fix it?"

Tips & gotchas

• Ensure your code is written for Swift 5.5 or later, as concurrency features are not available in earlier versions.
• Avoid mixing traditional GCD with async/await unless necessary, to prevent complexity and potential bugs.