An unofficial export of Apple agent skills from the Xcode 27 developer beta, repackaged as a cross-platform plugin marketplace for Claude Code, Codex, Grok CLI, and other compatible coding agents.
These skills were not created by this repository. They are Apple-authored agent skills bundled with the latest Xcode 27 dev beta, exported with:
xcrun agent skills exportThis repo only packages and distributes those exported files for easier installation outside Xcode.
| Skill | Description |
|---|---|
swiftui-specialist |
SwiftUI best practices, data flow, modifiers, localization, and performance patterns |
swiftui-whats-new-27 |
New SwiftUI APIs and SDK 27 migrations (@State macro, reorderable, swipe actions, toolbars, and more) |
uikit-app-modernization |
Modernize UIKit apps for multi-window environments (safe area, orientation, scene lifecycle) |
audit-xcode-security-settings |
Audit and enable security-oriented Xcode build settings and Enhanced Security features |
c-bounds-safety |
Guide for the C -fbounds-safety language extension and adoption |
test-modernizer |
Migrate XCTest suites to Swift Testing and adopt modern testing features |
device-interaction |
Verify app behavior on device or simulator via screenshots, UI hierarchy, and touch |
Replace mariusfanu/xcode-skills with your fork if you published under a different GitHub account.
Register the marketplace and install:
/plugin marketplace add mariusfanu/xcode-skills
/plugin install xcode-skills@xcode-skillsOr install from a local clone:
git clone https://github.com/mariusfanu/xcode-skills.git
/plugin marketplace add ./xcode-skills
/plugin install xcode-skills@xcode-skillsCLI — add the GitHub marketplace and install:
codex plugin marketplace add mariusfanu/xcode-skills
codex plugin add xcode-skills@xcode-skillsApp — open Plugins in the sidebar, add mariusfanu/xcode-skills as a marketplace source, then install xcode-skills.
For direct CLI install from a specific branch or tag:
codex plugin marketplace add mariusfanu/xcode-skills --ref main
codex plugin add xcode-skills@xcode-skillsAdd this repo as a marketplace source, then install the plugin:
grok plugin marketplace add mariusfanu/xcode-skills
grok plugin install mariusfanu/xcode-skills --trustOr install directly without adding the marketplace first:
grok plugin install mariusfanu/xcode-skills --trustVerify:
grok plugin list
grok plugin details xcode-skillsIn the TUI, /marketplace lists available plugins; /skills shows loaded skills.
Copy or symlink the skills/ directory into your project:
mkdir -p .grok/skills
cp -R plugins/xcode-skills/skills/* .grok/skills/Claude Code also discovers .claude/skills/ at the same path.
- Skill content: Apple Inc., exported from the Xcode 27 developer beta via
xcrun agent skills export - This repository: packaging and marketplace manifests only