Roslyn Codelens MCP vs Percept

In-depth architectural comparison of the Roslyn Codelens MCP and Percept MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

Which MCP Server Should You Choose?

Choose Roslyn Codelens MCP when:

• You need dedicated capabilities in the Monitoring domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• Primary tools included: Roslyn-based semantic symbol analysis, Call graphs and type hierarchy inspection, Diagnostics, code fixes, and refactoring actions.

Explore Roslyn Codelens MCP Details

Choose Percept when:

• You need dedicated capabilities in the Monitoring domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• Primary tools included: percept_discover, percept_recommend, percept_installed.

Feature & Specification Comparison

Specification	Roslyn Codelens MCP MarcelRoozekrans Monitoring	Percept perceptdot Monitoring
Summary	⃣ 🏠 🍎 🪟 🐧 - Roslyn-based MCP server with 22 semantic code intelligence tools for .NET. Type hierarchies, call graphs, DI registrations, diagnostics, code fixes, complexity metrics, and more. Sub-millisecond lookups via pre-built indexes.	AI-powered observability platform for agents. Auto-discovers and recommends MCP servers; built-in connectors for GA4, Vercel, GitHub, and Sentry with ROI tracking. npx -y @perceptdot/core
Category & Scope

Tools & Capabilities Breakdown

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

{
  "mcpServers": {
    "marcelroozekrans-roslyn-codelens-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "roslyn-codelens-mcp"
      ]
    }
  }
}

{
  "mcpServers": {
    "perceptdot-percept": {
      "command": "npx",
      "args": [
        "-y",
        "@perceptdot/core"
      ]
    }
  }
}

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