Koskamo

Roslyn CodeLens MCP

A Roslyn-based MCP server providing AI agents with deep semantic understanding of .NET/C# codebases. It offers 67 tools for navigation, call graphs, diagnostics, code fixes, safe refactoring, code-quality auditing, test intelligence, dependency injection graphs, and IL/external-assembly inspection.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Roslyn CodeLens MCP logo, by MarcelRoozekransCommunity listingLocal stdioSource reviewed; not executedPublished by MarcelRoozekrans
Vendor documentation

What you can do with it

  • Find all classes implementing an interface or extending a class
  • Find every call site for a method, property, or constructor
  • List test methods that exercise a production symbol
  • Scan for DI service registrations

Source and maintenance

Community listingRegistry 2.18.2
mcp-registry: io.github.MarcelRoozekrans/roslyn-codelens@2.18.2Source repository
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

roslyn-codelens-mcp 2.18.2

npmnpx
roslyn-codelens-mcp package definition
{
  "version": "2.18.2",
  "transport": "stdio",
  "identifier": "roslyn-codelens-mcp",
  "runtimeHint": "npx",
  "registryType": "npm",
  "registryBaseUrl": "https://registry.npmjs.org"
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

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Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "roslyn-codelens-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "roslyn-codelens-mcp@2.18.2"
      ]
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "roslyn-codelens-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "roslyn-codelens-mcp@2.18.2"
      ]
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "roslyn-codelens-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "roslyn-codelens-mcp@2.18.2"
      ]
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "roslyn-codelens-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "roslyn-codelens-mcp@2.18.2"
      ]
    }
  }
}

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