C# MCP Server Debugging

Run, debug, and interactively test C# MCP servers. Covers local execution, IDE debugging with breakpoints, MCP Inspector for protocol-level testing, and GitHub Copilot Agent Mode integration.

When to Use

• Running an MCP server locally for the first time
• Configuring VS Code or Visual Studio to debug an MCP server
• Testing tools interactively with MCP Inspector
• Verifying tools appear in GitHub Copilot Agent Mode
• Diagnosing issues: tools not discovered, protocol errors, server crashes
• Setting up mcp.json or .mcp.json configuration

Stop Signals

• No project yet? → Use mcp-csharp-create first
• Need automated tests? → Use mcp-csharp-test
• Production deployment issue? → Use mcp-csharp-publish