swift-concurrency SKILL.md skillA
swift-concurrency from jordancoin/ios-skills-collection is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jordancoin/ios-skills-collection/swift-concurrency@git:20260329.893209fPins git:20260329.893209f in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jordancoin/ios-skills-collection
- Path
skills/dpearson2699--swift-concurrency/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260329.893209f, committed Mar 29, 2026
- Size
- 15,229 bytes
- Repository stars
- 6
- License
- a license file GitHub does not identify
Resolve Swift concurrency compiler errors, adopt approachable concurrency (SE-0466), and write data-race-safe async code. Use when fixing Sendable conformance errors, actor isolation warnings, or strict concurrency diagnostics; when adopting default MainActor isolation, @concurrent, nonisolated(nonsending), or Task.immediate; when designing actor-based architectures, structured concurrency with TaskGroup, or background work offloading; or when migrating from @preconcurrency to full Swift 6…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Swift Concurrency Review, fix, and write concurrent Swift code targeting Swift 6.3+. Apply actor isolation, Sendable safety, and modern concurrency patterns with minimal behavior changes. ## Contents - [Triage Workflow](#triage-workflow) - [Swift 6.2 Language Changes](#swift-62-language-changes) - [Actor Isolation Rules](#actor-isolation-rules) - [Sendable Rules](#sendable-rules) - [Structured Concurrency Patterns](#structured-concurrency-patterns) - [Task Cancellation](#task-cancellation) - [Actor Reentrancy](#actor-reentrancy) - [AsyncSequence and AsyncStream](#asyncsequence-and-asyncstream) - [@Observable and Concurrency](#observable-and-concurrency) - [Synchronization Primitives](#synchronization-primitives) - [Common Mistakes](#common-mistakes) - [Review Checklist](#review-checklist) - [References](#references) ## Triage Workflow When diagnosing a concurrency issue, follow this sequence: ### Step 1: Capture context - Copy the exact compiler diagnostic(s) and the offending symbol(s). - Identify the project's concurrency settings: - Swift language version (must be 6.2+). - Whether approachable concurrency (default MainActor isolation) is enabled. …
Read the whole file at its exact version.
How to install
mdr add jordancoin/ios-skills-collection/swift-concurrency@sha256:33c84aaf7a4a82b3The line at the top of this page pins the label git:20260329.893209f, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_xc63bscgnpfswlyt)
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Versions
The registry has recorded 1 version of this file, committed on Mar 29, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (15229 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
jordancoin/ios-skills-collection · 6 stars · license a license file GitHub does not identify · pushed 2026-09-10 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_xc63bscgnpfswlyt GET https://markdownregistry.com/api/v1/resolve?ref=jordancoin/ios-skills-collection/swift-concurrency GET https://markdownregistry.com/api/v1/blob/33c84aaf7a4a82b30943d91c0d0bc18a82a59f30bb37277586f93c64bca4ad78
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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