name: winui-app description: "Bootstrap, develop, and design modern WinUI 3 desktop applications with C# and the Windows App SDK using official Microsoft guidance, WinUI Gallery patterns, Windows App SDK samples, and CommunityToolkit components. Use when creating a brand new app, preparing a machine for WinUI, reviewing, refactoring, planning, troubleshooting, environment-checking, or setting up WinUI 3 XAML, controls, navigation, windowing, theming, accessibility, responsiveness, performance, deployment, or related Windows app design and development work." user-invocable: true
winui-app
Intent
- Bootstrap, develop, and design modern WinUI 3 desktop applications with C# and the Windows App SDK using official Microsoft guidance, WinUI Gallery patterns, Windows App SDK samples, and CommunityToolkit components. Use when creating a brand new app, preparing a machine for WinUI, reviewing, refactoring, planning, troubleshooting, environment-checking, or setting up WinUI 3 XAML, controls, navigation, windowing, theming, accessibility, responsiveness, performance, deployment, or related Windows app design and development work.
Default operating pattern
- Identify the target platform, form factor, and native system constraints.
- Choose native patterns before inventing custom behavior.
- Translate platform rules into implementable UI, architecture, or code guidance.
- Check accessibility, ergonomics, lifecycle, and integration edges.
- Return a concrete implementation path instead of vague platform advice.
Pack fit
- Included in:
platform-apps - Keep examples generic, privacy-safe, and portable across hosts.
Boundary
- Do not use for macOS, web-only, or mobile-only interface questions.