Agents and skills for Windows development and debugging

Agent plugins for Windows development and debugging—from apps and services to kernel-mode drivers—with GitHub Copilot, Claude Code, OpenAI Codex, and more. Add this repo as a marketplace once, then install the plugins you need.

Plugin	What it's for	Maintained in	Hosts
winappcli	Packaging, signing, and distributing Windows apps with WinApp CLI: MSIX, certificates, package identity, appxmanifest, Windows SDK setup, and the Microsoft Store. Works with Electron, .NET, C++, Rust, Flutter, and Tauri.	microsoft/winappCli	Copilot, Claude Code, Codex, OpenClaw, OpenCode
winui	Native Windows apps with WinUI 3 and the Windows App SDK: scaffold, design, build, run, test, package, and ship.	microsoft/winappCli	Copilot, Claude Code, Codex, OpenClaw, OpenCode
windbg	WinDbg diagnosis workflows and report validation for applications, services, UMDF/user-mode drivers, and kernel-mode drivers. Feedback.	This repo	Copilot, Claude Code, Codex, OpenCode

On Codex, OpenClaw, and OpenCode, skills load; agents aren't available.

Plugins are either hosted here under plugins/<name>/ or maintained in another repo and pinned to a release; both are first-class. winappcli and winui are maintained in microsoft/winappCli; file their issues and PRs there.

Install

You need Git (winget install Git.Git) and one of the hosts below. Replace `` with a name from the table.

[!NOTE] Install each plugin from one catalog. microsoft/winappCli's own catalog (@winappcli) and awesome-copilot ship the same plugins; installing a second copy gives you duplicate skills.

GitHub Copilot CLI

copilot plugin marketplace add microsoft/win-dev-skills
copilot plugin install @win-dev-skills

Or let Copilot install winui and its prerequisites

Paste this prompt into a Copilot CLI session:

Install the Copilot CLI plugin "winui" from microsoft/win-dev-skills, then set up my machine for WinUI 3 development. Specifically: