swift-concurrency

Provide Swift Concurrency best practices and migration strategies to Swift 6.

1|Updated Feb 8, 2026

Search Tags:#linting #migration #concurrency #swift #async-await #actors #sendable

Ready to run

npx skills add https://github.com/foxtrottwist/ClaudeAgentConfig --skill swift-concurrency-foxtrottwist

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: swift-concurrency
Source: https://github.com/foxtrottwist/ClaudeAgentConfig/tree/main/xcode-agent/skills/swift-concurrency
Command: npx skills add https://github.com/foxtrottwist/ClaudeAgentConfig --skill swift-concurrency-foxtrottwist

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Expert guidance on Swift Concurrency best practices, patterns, and implementation. Use this guide when developers discuss Swift Concurrency topics like async/await, actors, migrations to Swift 6, data races, and linter warnings.

Core Features & Use Cases

Expert patterns and practical recommendations for safe, performing concurrent Swift code.
Migration strategies to Swift 6 and handling actor isolation, Sendable, and MainActor concerns.
Guidance for diagnosing and resolving common concurrency issues, performance considerations, and linting guidance.

Quick Start

Tell me how to apply Swift Concurrency best practices to migrate a codebase to Swift 6 and fix a data-race issue.

Frequently Asked Questions about swift-concurrency

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

FAQPage Schema

How do I migrate a codebase to Swift 6 and fix data race issues?▼

To migrate a codebase to Swift 6 and fix data race issues, apply expert patterns for actor isolation and Sendable conformance. This provides actionable migration strategies and tooling references to resolve concurrent code safety.

What is the best way to resolve SwiftLint async_without_await warnings?▼

The best way to resolve SwiftLint async_without_await warnings is to apply specific concurrency linting guidance. This provides recommended tooling references and best practices to diagnose and correct unnecessary async functions.

How does actor isolation work when adopting Swift async-await?▼

Actor isolation works in Swift async-await by protecting state from data races through serialized access. This provides expert patterns for implementing MainActor concerns and safe performing concurrent Swift code.

When do I need to use Sendable conformance in Swift Concurrency?▼

You need to use Sendable conformance in Swift Concurrency when passing data across actor boundaries to prevent data races. This provides guidance for diagnosing concurrency issues and handling safe migration to Swift 6.

What are common performance considerations for Swift async-await code?▼

Common performance considerations for Swift async-await code include managing actor isolation overhead and MainActor blocking. This provides expert guidance on diagnosing performance considerations and practical recommendations for performing concurrent Swift code.