About macos
A skill covering macOS app development, including window management, menu bar utilities, AppKit integration, and distribution preparation. It is for developers building Mac applications and includes XcodeBuildMCP build and test workflows.
Key features
- 01MenuBarExtra utility app guidance
- 02Multi-window and settings scene patterns
- 03Keyboard shortcuts and menus
- 04SwiftUI and AppKit integration
- 05XcodeBuildMCP build and test tools
- 06Notarization and sandboxing guidance
Use cases
- 01Build a macOS menu bar utility
- 02Structure an app with multiple windows and settings
- 03Embed AppKit views in SwiftUI
- 04Prepare a Mac app for distribution
MCP support
Includes XcodeBuildMCP tools for building, running, testing, launching, and stopping macOS apps.
Install
Copy the command and run it in a terminal.
npx skills add https:/ / github.com/ fusengine/ agents --skill macosAfter installing, type/macosin Claude Code to confirm it loaded.
Bundled files
References and scripts installed along with SKILL.md.
references/app-structure.mdappkit-integration.mdbuild-tools.mdnotarization.mdDetails
From the project READMELists the XcodeBuildMCP tools for macOS builds (build_macos, build_run_macos, test_macos, launch_mac_app, stop_mac_app) and references for app structure (MenuBarExtra, Settings, Windows), build tooling, AppKit bridging, and code-signing/notarization.
Best practices: support keyboard shortcuts for power users, use MenuBarExtra for utility apps, use WindowGroup/Window for multi-window apps and Settings for the preferences scene, notarize before distributing outside the App Store, and enable sandboxing for App Store submissions.
macOS Platform
macOS-specific development with window management and distribution tools.
Agent Workflow (MANDATORY)
Before ANY implementation, spawn 3 agents in parallel, one Agent call each with a name:
- fuse-ai-pilot:explore-codebase - Analyze existing macOS patterns
- fuse-ai-pilot:research-expert - Verify latest macOS 27 docs via Context7/Exa
- mcp__XcodeBuildMCP__build_macos - Build for macOS validation
After implementation, run fuse-ai-pilot:sniper for validation.
Overview
When to Use
- Building Mac desktop applications
- Creating menu bar apps (MenuBarExtra)
- Multi-window applications
- Keyboard shortcuts and menus
- Notarization for distribution
- AppKit integration
Why macOS Skill
| Feature | Benefit |
|---|---|
| MenuBarExtra | Background utility apps |
| Window management | Multi-window support |
| Keyboard shortcuts | Power user productivity |
| Notarization | Gatekeeper-safe distribution |
MCP Tools Available
Build Tools
build_macos- Build for macOSbuild_run_macos- Build and launchtest_macos- Run macOS testslaunch_mac_app- Start built appstop_mac_app- Terminate app
Reference Guide
| Need | Reference |
|---|---|
| MenuBarExtra, Settings, Windows | app-structure.md |
| XcodeBuildMCP macOS tools | build-tools.md |
| NSViewRepresentable, menus | appkit-integration.md |
| Code signing, notarization | notarization.md |
Best Practices
- Keyboard shortcuts - Support power users
- Menu bar integration - For utility apps
- Multiple windows - Use WindowGroup/Window
- Settings window - Use Settings scene
- Notarization - Required for distribution
- Sandbox - Enable for App Store