Does it support Swift Package Manager (SPM)?

Absolutely. It can analyze Package.swift files to detect tools versions, upcoming features, and specific concurrency build flags.

Why should I prefer structured concurrency over unstructured tasks?

Structured concurrency (like task groups and async let) provides better task lifecycle management, automatic cancellation propagation, and clearer error handling compared to unstructured Task blocks.

Can it fix 'Main actor-isolated' errors?

Yes, it analyzes your code's isolation context to determine if @MainActor is appropriate or if a different strategy like nonisolated or custom actors should be used.

How does this skill help with Swift 6 migration?

It provides a step-by-step migration strategy, helps interpret strict concurrency warnings, and suggests minimal-impact refactors to achieve complete data-race safety.

Swift Concurrency Expert

Name: Swift Concurrency Expert
Author: lev-os

bylev-os

0•

Mobile Development

Provides expert guidance on Swift Concurrency patterns, actors, and safe migration to the Swift 6 language mode.

This skill empowers developers to master Swift's modern concurrency model by providing specialized advice on async/await, actors, and structured concurrency. It helps identify isolation boundaries, resolve data races, and navigate the transition to Swift 6 with a focus on compile-time safety and performance. By analyzing project-specific build settings and toolchain versions, it delivers tailored recommendations for maintaining thread safety while minimizing the architectural footprint of concurrent code through structured task management and Sendable enforcement.

Key Features

01Triage-first playbook for resolving common Swift 6 compiler warnings and data race errors.

02Automated analysis of Swift project settings and strict concurrency build flags.

03Guidance on refactoring legacy closure-based code into modern structured concurrency.

040 GitHub stars

05Identification and enforcement of isolation boundaries like @MainActor and custom actors.

06Best practices for implementing Task Groups, AsyncSequence, and Sendable types.

Use Cases

01Architecting high-performance parallel operations using structured Task Groups.

02Migrating complex iOS/macOS codebases to Swift 6 with full data-race safety.

03Resolving 'non-Sendable' warnings and actor isolation conflicts in concurrent apps.

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add lev-os/agents swift-concurrency

For use in Claude.ai and ChatGPT

Download Skill