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mcp/harbor
VS Code

roslyn mcp for VS Code

io.github.darylmcd/roslyn-mcp

Local-first MCP server for semantic C# analysis & refactoring via Roslyn & MSBuildWorkspace.

client:VS Code transport:stdio runtime:nuget

Install roslyn mcp in VS Code

.vscode/mcp.json 

{
  "inputs": [
    {
      "type": "promptString",
      "id": "roslynmcp-sanctioned-roots",
      "description": "ROSLYNMCP_SANCTIONED_ROOTS",
      "password": true
    }
  ],
  "servers": {
    "roslyn-mcp": {
      "type": "stdio",
      "command": "dnx",
      "args": [
        "Darylmcd.RoslynMcp",
        "--yes"
      ],
      "env": {
        "ROSLYNMCP_SANCTIONED_ROOTS": "${input:roslynmcp-sanctioned-roots}"
      }
    }
  }
}

VS Code prompts for each input the first time the server starts, so no secret is written to the file. VS Code docs

roslyn mcp in other clients

roslyn mcp MCP server