fillet_curves

What fillet_curves does on Aos

AI agents use fillet_curves to create or update resources in Aos, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Aos environment.

Why fillet_curves is rated Medium

This tool creates new geometry (a fillet arc) which modifies the design file reversibly. It is a Write operation because it creates/adds data to the model without permanently destroying existing data or executing arbitrary code. Severity is medium because misuse could corrupt a design file, but the operation is reversible (undo available in Rhino) and does not involve code execution, deletion, or financial impact.

From the tool's definition Tool name 'fillet_curves' and description 'Create a fillet arc between two curves' indicates creation of new geometry. The server context shows it operates within Rhino 8 to modify the 3D model by adding geometric elements.

The rule that runs fillet_curves safely

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

{
  "version": "1",
  "default": "deny",
  "tools": {
    "fillet_curves": {
      "limits": [
        {
          "counter": "fillet_curves_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

Questions about fillet_curves