Create a Part Torus (donut shape) primitive. Args: radius1: Major radius (center to tube center). Defaults to 10.0. radius2: Minor radius (tube radius). Defaults to 2.0. angle1: Start angle for tube sweep. Defaults to -180. angle2: End angle for tube sweep. Defaults to 180. angle3: Rotation angle...
AI agents use create_torus 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.
This tool creates a new 3D geometric object in FreeCAD, which is a reversible write operation. The object can be modified or deleted, and the action does not irreversibly destroy data or execute arbitrary code. The blast radius is limited to adding a single geometric primitive to a design document, posing minimal risk even if misused by an AI agent.
From the tool's definition Tool name is 'create_torus' and description states 'Create a Part Torus (donut shape) primitive' with parameters for configuring geometric properties (radius1, radius2, angles). The return value indicates it creates a new object in the FreeCAD document.
Documented attack patterns abuse exactly the kind of access create_torus 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 create_torus:
{
"version": "1",
"default": "deny",
"tools": {
"create_torus": {
"limits": [
{
"counter": "create_torus_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}create_torus 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.
Free to start. No card required.
Create a Part Torus (donut shape) primitive. Args: radius1: Major radius (center to tube center). Defaults to 10.0. radius2: Minor radius (tube radius). Defaults to 2.0. angle1: Start angle for tube sweep. Defaults to -180. angle2: End angle for tube sweep. Defaults to 180. angle3: Rotation angle around axis. Defaults to 360. name: Object name. Auto-generated if None. doc_name: Target document. Uses active document if None. Returns: Dictionary with created object information: - name: Object name - label: Object label - type_id: 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.
Register the FreeCAD Robust MCP Server MCP server in PolicyLayer and add a rule for create_torus: 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.
create_torus is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the create_torus 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.
Set action: deny in the PolicyLayer policy for create_torus. 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.
create_torus 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.
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.