Medium Risk

revolve_shape

Revolve a wire or face around an axis. Args: object_name: Name of the wire or face object to revolve. axis_point: A point on the rotation axis [x, y, z]. axis_direction: Direction of the rotation axis [x, y, z]. angle: Revolution angle in degrees. Defaults to 360. result_name: Name for result obj...

How to control revolve_shape ↓

AI agents use revolve_shape to create or update resources in FreeCAD Robust MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your FreeCAD Robust MCP Server environment.

Medium Risk

The revolve_shape tool modifies the 3D model by creating a new object through revolution of existing geometry. This is a reversible Write operation (not Destructive, as the original geometry is preserved and the operation can be undone).

From the tool's definition 'Revolve a wire or face around an axis' and parameters like 'object_name', 'axis_point', 'axis_direction', 'angle', 'result_name' indicate the tool creates a new geometric object (result_name for 'result object') through a reversible modeling operation.

Documented attack patterns abuse exactly the kind of access revolve_shape gives an agent:

PolicyLayer is an MCP gateway — it sits between your AI agents and FreeCAD Robust MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for revolve_shape:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "revolve_shape": {
      "limits": [
        {
          "counter": "revolve_shape_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

revolve_shape stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

  1. Create a free account and register FreeCAD Robust MCP Server — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
LIMIT THIS TOOL →

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Go deeper

What does the revolve_shape tool do? +

Revolve a wire or face around an axis. Args: object_name: Name of the wire or face object to revolve. axis_point: A point on the rotation axis [x, y, z]. axis_direction: Direction of the rotation axis [x, y, z]. angle: Revolution angle in degrees. Defaults to 360. result_name: Name for result object. Auto-generated if None. doc_name: Document containing the object. Uses active document if None. Returns: Dictionary with result object information: - name: Result object name - label: Result object label - type_id: Result object type. It is categorised as a Write tool in the FreeCAD Robust MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on revolve_shape? +

Register the FreeCAD Robust MCP Server MCP server in PolicyLayer and add a rule for revolve_shape: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches FreeCAD Robust MCP Server. Nothing to install.

What risk level is revolve_shape? +

revolve_shape is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit revolve_shape? +

Yes. Add a rate_limit block to the revolve_shape rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block revolve_shape completely? +

Set action: deny in the PolicyLayer policy for revolve_shape. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides revolve_shape? +

revolve_shape is provided by the FreeCAD Robust MCP Server MCP server (spkane/freecad-addon-robust-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every FreeCAD Robust MCP Server tool call.

Deterministic rules across all 152 FreeCAD Robust MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

Free to start. No card required.

152 FreeCAD Robust MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

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