Memory
gustavscirulis/snapgrid
Swift 6.2 InlineArray and Span types for zero-overhead memory access, fixed-size collections, and safe pointer alternatives.
Resolve Swift concurrency compiler errors, adopt approachable concurrency (SE-0466), and write data-race-safe async code.
Install Swift Concurrency
$ npx skills add dpearson2699/swift-ios-skills --skill swift-concurrency -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install dpearson2699/swift-ios-skills swift-concurrency --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/dpearson2699/swift-ios-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/swift-concurrency .claude/skills/swift-concurrency && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "swift-concurrency" agent skill from https://github.com/dpearson2699/swift-ios-skills/tree/main/skills/swift-concurrency into .claude/skills/swift-concurrency/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "swift-concurrency", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/dpearson2699/swift-ios-skills/tree/main/skills/swift-concurrencyType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add dpearson2699/swift-ios-skills --skill swift-concurrency -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install dpearson2699/swift-ios-skills swift-concurrency --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dpearson2699/swift-ios-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/swift-concurrency .agents/skills/swift-concurrency && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "swift-concurrency" agent skill from https://github.com/dpearson2699/swift-ios-skills/tree/main/skills/swift-concurrency into .agents/skills/swift-concurrency/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "swift-concurrency", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add dpearson2699/swift-ios-skills --skill swift-concurrency -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install dpearson2699/swift-ios-skills swift-concurrency --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dpearson2699/swift-ios-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/swift-concurrency .cursor/skills/swift-concurrency && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "swift-concurrency" agent skill from https://github.com/dpearson2699/swift-ios-skills/tree/main/skills/swift-concurrency into .cursor/skills/swift-concurrency/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "swift-concurrency", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/dpearson2699/swift-ios-skills.git --path skills/swift-concurrency--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add dpearson2699/swift-ios-skills --skill swift-concurrency -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install dpearson2699/swift-ios-skills swift-concurrency --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dpearson2699/swift-ios-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/swift-concurrency .gemini/skills/swift-concurrency && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "swift-concurrency" agent skill from https://github.com/dpearson2699/swift-ios-skills/tree/main/skills/swift-concurrency into .gemini/skills/swift-concurrency/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "swift-concurrency", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install dpearson2699/swift-ios-skills swift-concurrencyInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add dpearson2699/swift-ios-skills --skill swift-concurrency -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/dpearson2699/swift-ios-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/swift-concurrency .github/skills/swift-concurrency && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "swift-concurrency" agent skill from https://github.com/dpearson2699/swift-ios-skills/tree/main/skills/swift-concurrency into .github/skills/swift-concurrency/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "swift-concurrency", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add dpearson2699/swift-ios-skills --skill swift-concurrency -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install dpearson2699/swift-ios-skills swift-concurrency --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dpearson2699/swift-ios-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/swift-concurrency .opencode/skills/swift-concurrency && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "swift-concurrency" agent skill from https://github.com/dpearson2699/swift-ios-skills/tree/main/skills/swift-concurrency into .opencode/skills/swift-concurrency/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "swift-concurrency", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
swift-concurrency- GitHub stars
- 1.2k
- Token cost
- ~5k tokens
- SKILL.md length
- 1,844 words
- Files
- 9 (incl. references)
- Skills in repo
- 86
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Resolve Swift concurrency compiler errors, adopt approachable concurrency (SE-0466), and write data-race-safe async code.
- Works in 3 steps: Capture context → Apply the smallest safe fix → Verify
- Fixing Sendable conformance errors
- SKILL.md covers Contents, Triage Workflow, Swift 6.2 Language Changes and Actor Isolation Rules, plus 10 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Swift Concurrency is an agent skill from dpearson2699/swift-ios-skills. 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 strict concurrency.
Its SKILL.md is about 5k tokens, which your agent loads only when the skill is triggered. The skill folder holds 10 other files, including reference files (for example `evals/evals.json`, `references/approachable-concurrency.md` and `references/async-algorithms.md`).
It sits in Mobile, covering iOS development. It works with Swift. The repository describes itself as: Agent Skills for iOS 26+, Swift 6.3, SwiftUI, and modern Apple frameworks.
When your agent uses it
- Fixing Sendable conformance errors
- Actor isolation warnings
- Strict concurrency diagnostics
- Adopting default MainActor isolation
Example prompts
- “/swift-concurrency”
Workflow steps
3 steps, taken from the step headings in SKILL.md.
- Capture context
- Apply the smallest safe fix
- Verify
What it can do on your machine
Read from SKILL.md and the folder at commit 8d90fd1. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are swift).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Swift Concurrency loads about 5k tokens when it runs, and up to ~17k if it reads all its reference files. Until then it costs about 133 tokens; SKILL.md has 1,844 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 1,844 words (~4,987 tokens).
“Review, fix, and write concurrent Swift code targeting Swift 6.3+. Gate Swift 6.4 / Xcode 27 beta cleanup APIs behind explicit toolchain and availability checks. Apply actor isolation, Sendable safety, and modern concurrency patterns with minimal behavior changes.”
- name
- swift-concurrency
Files
SKILL.md and 8 other files (references) in skills/swift-concurrency of dpearson2699/swift-ios-skills.
- SKILL.md
- evals/evals.json
- references/approachable-concurrency.md
- references/async-algorithms.md
- references/bridging-interop.md
- references/concurrency-patterns.md
- references/diagnostics.md
- references/swiftui-concurrency.md
- references/synchronization-primitives.md
Open the folder on GitHubat commit 8d90fd1
Compare with similar skills
Swift Concurrency next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Swift Concurrency this skilldpearson2699/swift-ios-skills | 1.2k | — | ~5k | Automated safety check: Pass | Custom licence | |
| Memorygustavscirulis/snapgrid | 117 | 1 repos | ~3k | Automated safety check: Pass | Custom licence | |
| Swift Best PracticesHoangNguyen0403/agent-skills-standard | 571 | — | ~725 | Automated safety check: Pass | MIT | |
| macOS Spm App PackagingDimillian/Skills | 4k | 5 repos | ~1.2k | Automated safety check: Pass | MIT | |
| Swift Concurrency Protwostraws/Swift-Concurrency-Agent-Skill | 564 | — | ~1.4k | Automated safety check: Pass | MIT | |
| Swiftui Expert SkillAFK-surf/OpenBridge | 430 | 2 repos | ~3.9k | Automated safety check: Pass | MIT |
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Swift Best Practices
HoangNguyen0403/agent-skills-standard
Apply Guard, Value Types, Immutability, and Naming conventions in Swift.
macOS Spm App Packaging
Dimillian/Skills
Scaffold, build, and package SwiftPM-based macOS apps without an Xcode project.
Swift Concurrency Pro
twostraws/Swift-Concurrency-Agent-Skill
Reviews Swift code for concurrency correctness, modern API usage, and common async/await pitfalls.
Swiftui Expert Skill
AFK-surf/OpenBridge
Write, review, or improve SwiftUI code following best practices for state management, view composition, performance, modern APIs, Swift concurrency, and iOS 26+ Liquid Glass adoption.
macOS Development
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Comprehensive macOS development guidance including Swift 6+, SwiftUI, SwiftData, architecture patterns, AppKit bridging, and macOS 26 Tahoe APIs.
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Questions about Swift Concurrency
What does Swift Concurrency do?
Resolve Swift concurrency compiler errors, adopt approachable concurrency (SE-0466), and write data-race-safe async code. Swift Concurrency is an agent skill from dpearson2699/swift-ios-skills. Resolve Swift concurrency compiler errors, adopt approachable concurrency (SE-0466), and write data-race-safe async code.
When should I use Swift Concurrency?
Swift Concurrency fits situations like: fixing Sendable conformance errors; actor isolation warnings; strict concurrency diagnostics; adopting default MainActor isolation.
How do I install Swift Concurrency in Claude Code?
Run `npx skills add dpearson2699/swift-ios-skills --skill swift-concurrency -a claude-code`. Or copy the skill folder (skills/swift-concurrency in dpearson2699/swift-ios-skills) into .claude/skills/swift-concurrency in your project. Claude Code loads it when a task matches its description.
How do I install Swift Concurrency in Codex?
Run `npx skills add dpearson2699/swift-ios-skills --skill swift-concurrency -a codex`. Or copy the skill folder (skills/swift-concurrency in dpearson2699/swift-ios-skills) into .agents/skills/swift-concurrency in your project. Codex loads it when a task matches its description.
Can I use Swift Concurrency in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add dpearson2699/swift-ios-skills --skill swift-concurrency -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/swift-concurrency, .gemini/skills/swift-concurrency, .github/skills/swift-concurrency and .opencode/skills/swift-concurrency in your project.
What does Swift Concurrency need to run?
SKILL.md names no scripts, command-line tools or credentials: Swift Concurrency is instructions for the agent only.
Does Swift Concurrency access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Swift Concurrency safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Swift Concurrency use?
Swift Concurrency has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Swift Concurrency use?
About 5k tokens (SKILL.md is roughly 20k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 12k tokens, read only when the agent opens those files.
What are the alternatives to Swift Concurrency?
Skills that share tags, products or a category with Swift Concurrency: Memory (gustavscirulis/snapgrid, 117 stars), Swift Best Practices (HoangNguyen0403/agent-skills-standard, 571 stars), macOS Spm App Packaging (Dimillian/Skills, 4k stars) and Swift Concurrency Pro (twostraws/Swift-Concurrency-Agent-Skill, 564 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Swift Concurrency?
dpearson2699 (a GitHub user) maintains it in dpearson2699/swift-ios-skills, which has 1,182 GitHub stars. The repository holds 86 skills in this directory. The repository was last updated on July 31, 2026.
Source: dpearson2699/swift-ios-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.