uno
Open-source platform for building cross-platform native Mobile, Web, Desktop, and Embedded apps from a single C#/XAML codebase. Work from any IDE/CLI with Hot Reload, Visual Designer, MCPs, and Skills built for modern .NET workflows. 200M+ NuGet downloads.
The Uno Platform Studio plugin for Claude Code delivers 70+ specialized skills that enable AI agents to build cross-platform .NET applications using the Uno Platform framework. It provides grounded, documentation-backed assistance for creating native mobile, web, desktop, and embedded apps from a single C#/XAML codebase. The plugin integrates with the Uno Platform Studio Agent orchestration layer, which validates changes across all target platforms and maintains awareness of your running application's state. Developers using Claude Code can leverage these skills to generate WinUI 3-compatible UI components, implement MVUX state management patterns, and troubleshoot platform-specific rendering issues.
Key Features
Use Cases
- 01Generating cross-platform UI components that work on iOS, Android, WebAssembly, and desktop from natural language prompts
- 02Refactoring existing WinUI or UWP applications to run on multiple platforms with AI assistance
- 03Implementing MVUX or MVVM state management patterns with context-aware code suggestions
- 04Troubleshooting platform-specific rendering issues with documentation-grounded explanations
- 05Converting Figma designs to XAML markup with AI-assisted Design-to-Code workflows
- 06Building enterprise-grade mobile and web applications with validated, production-ready C# code
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uno — FAQ
What is the Uno Platform Studio plugin for Claude Code?+
It's an AI plugin that provides 70+ specialized skills for building cross-platform .NET applications using the Uno Platform framework. The plugin enables Claude Code to generate, refactor, and troubleshoot C#/XAML code with grounded answers from official Uno Platform documentation.
How do I install the Uno Platform Studio plugin in Claude Code?+
Use the Claude Code plugin marketplace commands to add and install the 'uno-platform-studio' plugin. The exact repository reference and installation commands should be available through the Claude Code plugin interface.
Which AI coding assistants work with the Uno Platform Studio plugin?+
The plugin works with Claude Code, GitHub Copilot, and OpenAI Codex, providing consistent Uno Platform-specific skills across these AI development environments.
Do I need API keys or prerequisites to use the Uno Platform Studio plugin?+
You need a working Uno Platform development environment (set up with the uno.check tool) and access to one of the supported AI coding assistants. The plugin itself is part of the open-source Uno Platform ecosystem released under Apache 2.0 license.
Is the Uno Platform Studio plugin free to use?+
Yes, the plugin is part of the free and open-source Uno Platform project (Apache 2.0 license). However, you'll need a subscription to the AI coding assistant you're using (Claude Code, GitHub Copilot, or OpenAI Codex).
What makes this plugin different from generic C# coding assistants?+
The Uno Platform Studio plugin provides specialized knowledge of cross-platform development patterns, WinUI 3 API compatibility, platform-specific rendering behaviors, and Uno Platform's unique features like MVUX and Hot Design. It validates code changes across all target platforms and grounds its responses in official framework documentation.
How do I install uno?+
Open the source repository on GitHub and follow its README. uno is a plugin — MCP Agents Market links you directly to the official repo.
Is uno free?+
uno is an open-source project hosted on GitHub. Check the repository for its license and any usage requirements.