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Gemini CLI

sigma rules mcp for Gemini CLI

io.github.mrfentmen/sigma-rules-mcp

Sigma MCP: parse detection rules, validate ids, levels, statuses and detection blocks.

client:Gemini CLI transport:stdio runtime:npm

Install sigma rules mcp in Gemini CLI

~/.gemini/settings.json · windows: %USERPROFILE%\.gemini\settings.json 

{
  "mcpServers": {
    "sigma-rules-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@mrfentmen/sigma-rules-mcp"
      ]
    }
  }
}

Gemini expands $VAR and ${VAR} inside env values, so a secret can live in your shell rather than this file. Gemini CLI docs

sigma rules mcp in other clients

sigma rules mcp MCP server