swift-development

Explain Swift 6.2 concurrency, actors, and Sendable types for migration.

603|51|Updated Oct 29, 2025
One-click install
npx skills add https://github.com/rshankras/claude-code-apple-skills --skill swift-development-rshankras
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: swift-development
Source: https://github.com/rshankras/claude-code-apple-skills/tree/main/skills/swift
Command: npx skills add https://github.com/rshankras/claude-code-apple-skills --skill swift-development-rshankras

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill provides in-depth guidance on advanced Swift language features, helping developers write more performant, safe, and modern code.

Core Features & Use Cases

  • Concurrency Patterns: Deep dives into Swift 6.2's approachable concurrency, actors, and structured concurrency.
  • Memory Management: Explains Swift 6.2's InlineArray and Span for zero-overhead memory access.
  • Use Case: A developer is struggling with data race errors in their Swift app and needs to understand how to correctly use actors and Sendable types to ensure thread safety.

Quick Start

Explain Swift 6.2's new concurrency features and how they simplify migration.

Frequently Asked Questions about swift-development

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

FAQPage Schema
How do I fix data race errors when migrating to Swift 6 strict concurrency?

Fix data race errors in Swift 6 strict concurrency by adopting actors and Sendable types to ensure thread-safe access. This Skill guides you through debugging data races and correctly implementing structured concurrency patterns for safe async execution.

What is approachable concurrency in Swift 6.2 and how does it simplify migration?

Approable concurrency in Swift 6.2 simplifies migration by providing a flexible strict concurrency model that reduces the initial adoption barrier. It allows developers to incrementally adopt thread-safe patterns without requiring immediate full codebase compliance.

How do I use Swift 6.2 InlineArray and Span for memory management optimization?

Use Swift 6.2 InlineArray and Span for memory management to achieve zero-overhead memory access and performance optimization. These features provide contiguous memory layouts that eliminate allocation costs for fixed-size collections.

When do I need to use actors and Sendable types in Swift?

You need to use actors and Sendable types in Swift when sharing mutable state across concurrent execution contexts to guarantee thread safety. Actors serialize access to their internal state, while Sendable types safely transfer data between concurrent tasks.

What is the best way to adopt structured concurrency in Swift?

The best way to adopt structured concurrency in Swift is utilizing async let, task groups, and actors to create predictable execution hierarchies. This approach ensures child tasks are awaited and canceled automatically before parent tasks complete.

Does Swift 6 strict concurrency require existing codebases to be fully Sendable compliant?

Swift 6 strict concurrency does not require existing codebases to be fully Sendable compliant immediately. Developers can leverage Swift 6.2's approachable concurrency features to incrementally migrate code and resolve data race errors progressively.