C# .NET Development Plugin

February 16, 2026 ยท View on GitHub

Essential prompts, instructions, and chat modes for C# and .NET development including testing, documentation, and best practices.

Installation

# Using Copilot CLI
copilot plugin install csharp-dotnet-development@awesome-copilot

What's Included

Commands (Slash Commands)

CommandDescription
/csharp-dotnet-development:csharp-asyncGet best practices for C# async programming
/csharp-dotnet-development:aspnet-minimal-api-openapiCreate ASP.NET Minimal API endpoints with proper OpenAPI documentation
/csharp-dotnet-development:csharp-xunitGet best practices for XUnit unit testing, including data-driven tests
/csharp-dotnet-development:csharp-nunitGet best practices for NUnit unit testing, including data-driven tests
/csharp-dotnet-development:csharp-mstestGet best practices for MSTest 3.x/4.x unit testing, including modern assertion APIs and data-driven tests
/csharp-dotnet-development:csharp-tunitGet best practices for TUnit unit testing, including data-driven tests
/csharp-dotnet-development:dotnet-best-practicesEnsure .NET/C# code meets best practices for the solution/project.
/csharp-dotnet-development:dotnet-upgradeReady-to-use prompts for comprehensive .NET framework upgrade analysis and execution

Agents

AgentDescription
expert-dotnet-software-engineerProvide expert .NET software engineering guidance using modern software design patterns.

Source

This plugin is part of Awesome Copilot, a community-driven collection of GitHub Copilot extensions.

License

MIT