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mcp/harbor
Claude Desktop

Syl Guardian for Claude Desktop

io.sylai/guardian

Causal guardrail: pass/caution/hold verdict on a causal claim before an agent acts.

client:Claude Desktop transport:streamable-http tools:2

Install Syl Guardian in Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json · windows: %APPDATA%\Claude\claude_desktop_config.json 

{
  "mcpServers": {
    "guardian": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://guardian.sylai.io/mcp"
      ]
    }
  }
}

Claude Desktop has no remote transport in its config file, so this bridges through mcp-remote. Restart the app after saving. Claude Desktop docs

What Claude Desktop can do once it is connected

Syl Guardian in other clients

Syl Guardian MCP server