# Swift-Agent-Skills: A Curated Directory of Open-Source AI Skills for Swift and Apple Platform Development > Swift-Agent-Skills is a community-maintained directory of open-source AI agent skills for Swift and Apple platform development, covering SwiftUI, SwiftData, Swift concurrency, testing, accessibility, and 15 other categories. It lists skills that work with Claude Code, Codex, Cursor, and Windsurf. **twostraws/Swift-Agent-Skills** — A curated directory of open-source AI agent skills for Swift and Apple platform development. - Repository: https://github.com/twostraws/Swift-Agent-Skills - Stars: 2,747 · Forks: 103 - Language: Unknown - License: MIT - Published: 2026-09-10 · Updated: 2026-09-10 · Language: en - Canonical page: https://hysenlabs.com/projects/twostraws-swift-agent-skills ## What Swift-Agent-Skills Collects and Who It Helps Swift-Agent-Skills is a curated index of community-maintained AI agent skills for developers building Swift and Apple platform applications. It does not contain skill files directly; instead, it links to skill repositories maintained by members of the Swift community. The target user is a Swift developer who already uses an AI coding tool such as Claude Code, Codex, Cursor, or Windsurf and wants to improve that tool's handling of Swift-specific patterns, particularly those that involve recent framework additions or undocumented behaviors that may not be in the tool's training data. The README distinguishes between two types of skills: Capability skills, where the AI cannot solve a problem without the skill because the problem involves version-specific behavior or an edge case outside its training data, and Efficiency skills, where the AI can produce a solution but not the optimal one. The directory lists both types across its categories, though not every skill is tagged with which type it represents. ## How the Directory Is Organized Across 19 Categories The README organizes skills into 19 categories: SwiftUI, SwiftData, Swift Concurrency, Swift Testing, Swift Language, Accessibility, App Intents, App Store, Architecture, Background Execution, Core Data, Focus Management, Observability, Performance, Security, Codebase Audit, Tool Skills, User Interface, and Widgets. There is also a section for AGENTS.md files and a curated list of further reading. Not every category has the same depth of coverage. SwiftUI and Swift Concurrency have the most entries, with three or four skills listed each. Singleton categories such as App Intents, Architecture, Background Execution, Focus Management, Observability, and Codebase Audit have only one skill listed at the time of the last push. Some skill authors maintain multiple skills in a single repository. For example, the Dimillian/Skills repository covers SwiftUI UI Patterns, SwiftUI View Refactor, Swift Concurrency Expert, App Store Changelog, and SwiftUI Performance Audit, all from a single GitHub repository. ## Using a Listed Skill with Claude Code, Codex, or Cursor Swift-Agent-Skills is a directory, not an installable package. To use a skill from the list, a developer visits the linked repository for that skill and follows the installation instructions in that repository. The installation mechanism varies by skill and by AI coding tool. The README links to a YouTube video explaining how to install and use agent skills with Xcode, Claude Code, Codex, and more. Individual skills may use the npx skills add command, a plugin marketplace command, or manual file placement depending on what the skill's author documented. The README notes a usage pattern for maximizing reliability: prefix prompts with "use [skill name]" to explicitly invoke the skill rather than relying on keyword matching for automatic triggering. This prefix is a suggestion from the repository, not a requirement of the underlying AI tools. ## The Safety Warning: Read Before Installing Any Third-Party Skill The README opens with an explicit safety warning in a prominent callout block. The text states: 'Before you install a third-party agent skill, please make sure you have read it thoroughly and that you trust the author. Being listed here is not an endorsement; you need to exercise your own judgement.' This warning reflects a real security concern. Agent skills are instruction files that influence how an AI coding tool behaves in your project. A malicious or poorly written skill could instruct the AI to add insecure code, remove safety checks, or take unintended actions in your codebase. Because the skills are open source, the full content of each skill is visible before installation. The README suggests creating a personal fork of a skill rather than using it directly, to maintain full control over what instructions the skill contains. Respecting the license of the source skill is noted as a requirement when doing so. ## What the Directory Leaves Out Swift-Agent-Skills covers Apple platform frameworks but does not include skills for server-side Swift, Swift on Linux, Swift in AWS Lambda, or cross-platform Swift libraries. Teams using Swift for backend development will not find relevant skills here. The directory also does not include any validation or quality standard for listed skills beyond the requirement that they be open source. The README notes that skills are validated through automated evals in the context of the vuejs-ai/skills project (which is referenced), but individual contributors to this directory may not apply the same validation process. The listing covers what authors chose to submit rather than a curated set with uniform quality. There are no versioned releases, and the directory is updated through direct commits to the main branch. A skill that was listed at one point may be removed or its linked repository may be deleted without notice. ## Alternatives: antfu/skills and Framework-Specific Directories The README's Related Projects section lists three alternatives. antfu/skills is Anthony Fu's curated collection of agent skills for Vue, Vite, and Nuxt development. It is a different target platform, but it serves as a reference for what a mature, well-maintained skill directory looks like. vueuse/vueuse-skills is a skills directory for VueUse, the utility library. onmax/nuxt-skills is a directory focused on Nuxt development. None of these are Swift-focused, but they illustrate the ecosystem pattern: each major framework community maintains its own skill directory. For Apple platform developers, Swift-Agent-Skills is the only directory of this type among Apple-platform tools. The individual skills linked in the directory come from well-known members of the Swift community including Paul Hudson (twostraws), Thomas Ricouard (Dimillian), and Antoine van der Lee (AvdLee), which provides some confidence in the quality of the listed entries even without formal vetting. ## Maintenance Status and MIT License The last push to this repository was on September 4, 2026. The repository is not archived and has no versioned releases. Updates arrive as direct commits to the main branch as new skills are submitted by contributors. The repository itself is MIT licensed. The MIT license applies to the directory's own content (the README and the index structure), but each linked skill repository carries its own license, which may differ from MIT. Before using a skill in a project, checking the skill's own license is a necessary step, particularly for commercial projects. The repository also includes AGENTS.md files in its directory listing, which are a different but related format: they are instructions intended to be placed in a repository root to guide AI agents that work in that codebase, rather than installable skills. ## Conclusion Swift-Agent-Skills is useful for Swift developers who want to improve the output of AI coding tools on Apple-platform-specific patterns without building skills from scratch. The critical step before using any listed skill is reading the skill's source code and license, as the README explicitly states that listing is not an endorsement. The MIT license on the directory itself does not extend to the individual skills, which each carry their own licenses. The last push was September 4, 2026, and there are no versioned releases, so the directory is maintained through direct commits to main. ## FAQ ### What is Swift-Agent-Skills? Swift-Agent-Skills is a curated directory of links to open-source AI agent skills for Swift and Apple platform development. It covers frameworks including SwiftUI, SwiftData, Swift concurrency, and accessibility, and lists skills that work with Claude Code, Codex, Cursor, and Windsurf. ### Does Swift-Agent-Skills endorse the skills it lists? No. The README explicitly states that listing a skill is not an endorsement and asks developers to read each skill's source code thoroughly before installing it. Agent skills influence how AI coding tools behave in your project, so reviewing the content before trusting it is necessary. ### Can a Swift skill in this directory be used with both Claude Code and Codex? The README describes the listed skills as compatible with Claude Code, Codex, Cursor, and Windsurf, though individual skills may have tool-specific installation steps. The README links to a YouTube video explaining how to install and use skills with those tools. ## Sources - [Issues](https://github.com/twostraws/Swift-Agent-Skills/issues) - [License: MIT](https://github.com/twostraws/Swift-Agent-Skills/blob/main/LICENSE) - [README](https://github.com/twostraws/Swift-Agent-Skills/blob/main/README.md) - [twostraws/Swift-Agent-Skills on GitHub](https://github.com/twostraws/Swift-Agent-Skills) --- Hysen Labs editorial analysis, written from the project's own repository and release notes. Cite the canonical page: https://hysenlabs.com/projects/twostraws-swift-agent-skills