openai/winui-app
Bootstrap and develop modern WinUI 3 desktop apps with C# and Windows App SDK
by openaiFree
Description
winui-app is an agent skill from OpenAI's curated skills collection for building, developing and maintaining WinUI 3 desktop applications with C#, the Windows App SDK and CommunityToolkit components. It covers environment setup, project creation, XAML controls, navigation, theming, accessibility and deployment, and it follows Microsoft's official guidance and Fluent design. Instead of searching Microsoft Learn, the WinUI Gallery and the SDK samples separately, the skill applies the right reference for each task and enforces packaging, theming and launch checks that are easy to skip by hand. Typical uses include scaffolding a new WinUI 3 app with the correct packaged or unpackaged template, auditing a Windows machine to confirm the build prerequisites are installed, adding light and dark mode support with system brushes and theme-aware resources, choosing between CommandBar, NavigationView and a custom shell layout for a desktop interface, and recovering from build failures such as MSB3073 or XamlCompiler.exe errors by realigning the project to the template scaffold. It suits developers building Windows desktop software who want a consistent starting point and a reliable route through the build issues common to WinUI. The skill depends on a Windows machine with the Windows App SDK tools installed, so run the environment audit first. The skill is listed on officialskills.sh and installs from the openai/skills repository. Install it with npx skills add https://github.com/openai/skills --skill winui-app.…
Highlights
- Scaffolds WinUI 3 apps with packaged or unpackaged templates
- Covers XAML controls, navigation, theming and accessibility
- Environment audit for WinUI build prerequisites
- Recovers from common build failures such as MSB3073
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openai/winui-app FAQ
What does it build?
WinUI 3 desktop apps in C# with the Windows App SDK and CommunityToolkit components.
Does it need a particular machine?
A Windows machine with the WinUI tools installed. The skill can audit the prerequisites first.
How does it handle theming?
With system brushes and theme-aware resources for light and dark mode.
How do I install it?
Run npx skills add https://github.com/openai/skills --skill winui-app.
What are the best openai/winui-app alternatives?
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