swift-concurrency-pro

Analyze Swift concurrency code for correctness, actor isolation, and async/await pitfalls.

Updated Mar 15, 2026
One-click install
npx skills add https://github.com/jtvaris/sunday-night-dynasty --skill swift-concurrency-pro
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: swift-concurrency-pro
Source: https://github.com/jtvaris/sunday-night-dynasty/tree/main/.agents/skills/swift-concurrency-pro
Command: npx skills add https://github.com/jtvaris/sunday-night-dynasty --skill swift-concurrency-pro

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Swift concurrency code often hides subtle races, incorrect actor isolation, and misuses of structured vs unstructured concurrency. This Skill helps identify and remediate these issues to improve safety and reliability.

Core Features & Use Cases

  • Comprehensive concurrency reviews across Swift 6.2+ codebases focusing on async/await, actors, and task hierarchies.
  • Practical remediation guidance with concrete examples and best practices.
  • Ideal for code reviews, onboarding, and refactor sessions across iOS/macOS projects leveraging Swift concurrency.

Quick Start

Provide your Swift project and run a concurrency review to receive actionable feedback.

Frequently Asked Questions about swift-concurrency-pro

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

FAQPage Schema
How do I review Swift concurrency code for actor isolation and async/await pitfalls?

To review Swift concurrency code, analyze your project to identify correctness issues with actor isolation and async/await. It enforces checks for structured concurrency, cancellation handling, and bridging between sync and async code to ensure safety.

What is structured concurrency and how does it prevent data races in Swift?

Structured concurrency in Swift manages task hierarchies to prevent data races by enforcing actor isolation and safe async/await usage. It ensures tasks are properly scoped and cancelled, avoiding subtle concurrency issues found in unstructured task execution.

How do I handle cancellation in Swift async sequences and task hierarchies?

Handling cancellation in Swift async sequences requires checking cancellation states within task hierarchies. Analyze your code to ensure proper cancellation propagation, avoiding abandoned tasks and ensuring structured concurrency safely tears down async operations.

Does this concurrency review work with Swift 6.2 and structured concurrency patterns?

Yes, this concurrency review works with Swift 6.2 and structured concurrency patterns. It is designed for iOS and macOS projects leveraging async/await, actors, and async sequences, ensuring modern API usage and correct actor isolation across your codebase.

What's the best way to refactor unstructured Task usage into structured concurrency in Swift?

The best way to refactor unstructured Task usage into structured concurrency is by analyzing your code to identify misuses, then applying remediation guidance with concrete examples. It enforces proper task hierarchies and actor isolation to improve reliability.

Why does my Swift code have subtle races when bridging between sync and async code?

Subtle races in Swift occur when bridging between sync and async code due to incorrect actor isolation and misuses of structured concurrency. Analyze your codebase to identify these concurrency issues and receive practical remediation guidance for safer patterns.