rhino_network_surface

What rhino_network_surface does on Rhino

AI agents invoke rhino_network_surface to trigger actions in Rhino. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

Why rhino_network_surface is rated High

The tool triggers execution of a surface-building algorithm in the Rhino CAD environment. While not destructive in the data-deletion sense, it performs a complex computational operation with real effects on the document geometry. The action cannot be precisely reversed without manual undo, and an AI agent with misuse potential could create computationally expensive or malformed geometry.

From the tool's definition Tool description states 'Build a surface from a network of crossing curves' - this performs a geometric operation that executes a construction algorithm in Rhino 8, transforming input curve data into a new 3D surface object.

The rule that runs rhino_network_surface safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Rhino, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For rhino_network_surface, this is the rule to start with:

{
  "version": "1",
  "default": "deny",
  "tools": {
    "rhino_network_surface": {
      "limits": [
        {
          "counter": "rhino_network_surface_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

Questions about rhino_network_surface