Skylos vs Rsigma

In-depth architectural comparison of the Skylos and Rsigma 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 Skylos when:

• You need dedicated capabilities in the Security domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• Primary tools included: Dead-code and unused-file detection, Security, secret, and dependency analysis, AI-generated code verification.

Explore Skylos Details

Choose Rsigma when:

• You need dedicated capabilities in the Security domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• Primary tools included: Sigma rule authoring and tuning, Rule linting with 85 checks, Detection evaluation and explanation.

Explore Rsigma Details

Feature & Specification Comparison

Specification	Skylos duriantaco Security	Rsigma timescale Security
Summary	Dead code detection, security scanning, and code quality analysis for Python, TypeScript, and Go. 98% recall with fewer false positives than Vulture. Includes AI-powered remediation.	Exposes the RSigma Sigma detection-engineering toolkit to AI agents over stdio or Streamable HTTP with rsigma mcp serve. Tools to author, lint, validate, and convert Sigma detection rules, evaluate and explain detections against log events, and inspect correlation state, all backed by a native Rust engine.
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": {
    "duriantaco-skylos": {
      "command": "uvx",
      "args": [
        "skylos"
      ]
    }
  }
}

{
  "mcpServers": {
    "timescale-rsigma": {
      "command": "npx",
      "args": [
        "-y",
        "timescale-rsigma"
      ]
    }
  }
}

Related MCP Server Comparisons