swift-concurrency-expert
Review and fix Swift concurrency issues such as actor isolation and Sendable violations.
Profile →npx skills add sickn33/agentic-awesome-skills --skill swift-concurrency-expert --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# Swift Concurrency Expert ## Overview Review and fix Swift Concurrency issues in Swift 6.2+ codebases by applying actor isolation, Sendable safety, and modern concurrency patterns with minimal behavior changes. ## When to Use - When the user asks to review Swift concurrency usage or fix compiler diagnostics. - When you need guidance on actor isolation, `Sendable`, `@MainActor`, or async migration. ## Workflow ### 1. Triage the issue - Capture the exact compiler diagnostics and the offending symbol(s). - Check project concurrency settings: Swift language version (6.2+), strict concurrency level, and whether approachable concurrency (default actor isolation / main-actor-by-default) is enabled. - Identify the current actor context (`@MainActor`, `actor`, `nonisolated`) and whether a default actor isolation mode is enabled. - Confirm whether the code is UI-bound or intended to run off the main actor. ### 2. Apply the smallest safe fix Prefer edits that preserve existing behavior while satisfying data-race safety. Common fixes: - **UI-bound types**: annotate the type or relevant members with `@MainActor`. - **Protocol conformance on main actor types**: make the conformance isolated (e.
- Overview
- When to Use
- Workflow
- 1. Triage the issue
- 2. Apply the smallest safe fix
- 3. Verify the fix
- Examples
- Reference material
- Limitations
What does the swift-concurrency-expert skill do?
Review and fix Swift concurrency issues such as actor isolation and Sendable violations.
How do I install it?
Run `npx skills add sickn33/agentic-awesome-skills --skill swift-concurrency-expert --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From sickn33/agentic-awesome-skills, a repository with 44,414 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.