Skip to main content
affpapa.org
RU EN
skill CX Codex

swift-concurrency · dpearson2699 — Claude Code skill: what it does, how to install

Fixes Sendable errors and actor isolation diagnostics in Swift 6.2+ while adopting approachable concurrency features.

Install into Claude Code · Skills CLI (Vercel) All methods and platforms ↓ 
npx skills add dpearson2699/swift-ios-skills --skill swift-concurrency -a claude-code
Open on GitHub

What swift-concurrency does

Guides AI assistants through diagnosing and resolving Swift concurrency errors targeting Swift 6.2 and newer toolchains. The workflow prioritizes minimal safe code interventions: gathering diagnostic context, adjusting actor boundaries or conformances, and verifying the build without unnecessary @unchecked Sendable or nonisolated(unsafe) workarounds.

It covers approachable concurrency features like default MainActor isolation (SE-0466) and nonisolated(nonsending) execution (SE-0461). Because nonisolated async methods stay on the caller actor by default in Swift 6.2+, offloading CPU-heavy work to background threads requires pairing a nonisolated context with the explicit @concurrent attribute.

What it helps with

  • resolve compiler diagnostics for Sendable conformance
  • configure default MainActor isolation under SE-0466
  • fix actor isolation warnings in Swift 6 strict mode
  • offload heavy synchronous operations to background threads using @concurrent

Example prompts for the agent

  • Fix this Sendable warning when passing state across actors in Swift 6
  • Refactor this CPU-heavy method to run off the MainActor using @concurrent
  • Adopt default MainActor isolation for our application target

How to install swift-concurrency

1Skills CLI (Vercel)

npx skills add dpearson2699/swift-ios-skills --skill swift-concurrency -a claude-code

2Manually: put the files in place

~/.claude/skills/swift-concurrency/SKILL.md

Copy the whole skill folder; for one project use .claude/skills/swift-concurrency/

Step by step, with commands for each platform: How to install skills in Claude Code: five ways

Questions about swift-concurrency

How to install swift-concurrency in Claude Code?

Run npx skills add dpearson2699/swift-ios-skills --skill swift-concurrency -a claude-code in your terminal.

What does swift-concurrency do?

It guides your coding assistant through fixing data-race diagnostics, managing actor isolation, and applying Swift 6.2 concurrency patterns.

Which Swift language versions are supported?

It targets Swift 6.2 and newer versions, providing checks for upcoming features and approachable concurrency settings.

Similar skills

All skills for Programming languages →

swift-concurrency by other authors comes first.

swift-concurrency AvdLee Diagnoses Swift Concurrency issues, refactors callback code to async/await, and guides Swift 6 migration. Useful when isolation, Sendable, or compiler warnings block a change. CX Codex +1 17,000installs guide-swift-concurrency Prisma-Labs-Dev Guides AI agents through reviewing and writing concurrent Swift 6.2 code under strict concurrency checks. It flags actor reentrancy bugs, unsafe tasks, and GCD patterns. CX Codex +1 431installs swift-concurrency-expert Dimillian Skill reviews and fixes concurrency issues in Swift 6.2+: adds Sendable conformance, applies @MainActor, resolves actor isolation warnings, and migrates completion handlers to async/await. CX Codex +1 2,000installs swift-expert https://github.com/Jeffallan A Swift skill that walks the agent through architecture, SwiftUI state, async/await and actors, with build checks in between. Built for iOS and macOS work. CX Codex +1 4,100installs swift-development rshankras Reviews Swift concurrency, memory and code size: helps you migrate to Swift 6 strict mode and cut heap allocations. CX Codex +1 488installs write-swift emilkowalski This skill guides Swift coding, reviews, and migrations using the language’s current practices. Use it to investigate concurrency errors, hangs, data races, or retain cycles. CX Codex +1 119,300installs guide-swift-testing Prisma-Labs-Dev Provides patterns and review rules for Swift Testing. Helps write and audit test suites targeting Swift 6.2 concurrency. CX Codex +1 427installs

From the same set69

swiftui-performance Diagnoses slow SwiftUI rendering, scroll hitches, and unnecessary view updates. Use it to review code and investigate measurements in Instruments. CX Codex +1 4,600installs app-store-review Catches App Store rejection risks before submission. Audits privacy manifests, StoreKit purchase compliance, and review access blockers. CX Codex +1 4,500installs swiftui-patterns Guides SwiftUI view work around state, composition, environment wiring, and isolated previews. Use it when refactoring a screen or sorting out @Observable ownership. CX Codex +1 4,500installs ios-networking A skill that guides your coding agent through Swift networking on iOS and macOS: URLSession with async/await, error handling, retries and pagination. CX Codex +1 4,400installs ios-localization Guides localization work for iOS and macOS apps, from String Catalogs and plural forms to locale formatting and RTL layouts. CX Codex +1 4,300installs swift-testing Writes Swift Testing unit tests and converts existing XCTest assertions, flagging which checks belong in XCTest or XCUITest. CX Codex +1 4,300installs swiftui-navigation Provides SwiftUI navigation architectures, covering typed stacks, multi-column layouts, sheets, and tabs. Useful when structuring navigation state across iOS and macOS apps. CX Codex +1 4,400installs push-notifications Review, build, and debug local and APNs remote notifications for iOS and macOS in Swift. Handles permission flows, silent pushes, and service extensions. CX Codex +1 4,200installs

Project sponsors

Companies that keep this analytics open
Gold sponsor
Nutra.Club

Impressions, clicks and code copies — open statistics. We keep the numbers public for the same reason NeBlask itself is public. Become a sponsor