create_ellipse

A write tool on the FreeCAD Robust MCP server.

SERVERFreeCAD Robust MCP Server SOURCEspkane/freecad-addon-robust-mcp-server

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/spkane-freecad-addon-robust-mcp-server/create-ellipse.md

WHAT IT DOES

What create_ellipse does on FreeCAD Robust MCP Server

AI agents use create_ellipse 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.

RISK

Why create_ellipse is rated Medium

This tool creates a new ellipse sketch element, modifying the FreeCAD model by adding reversible geometry. It does not execute arbitrary code, delete data, or cause financial transactions. The empty description reduces confidence slightly, but the naming pattern and context from sibling tools (all 'add_sketch_*' operations) clearly indicate Write semantics.

From the tool's definition Tool name 'create_ellipse' indicates creation of a new geometric element in FreeCAD's sketch system, consistent with sibling 'add_sketch_ellipse' and other creation tools ('add_sketch_circle', 'add_sketch_line', 'add_sketch_point', 'add_sketch_polygon') which…

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_ellipse safely

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

create_ellipse Rate-limited

create_ellipse 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.

View as policy code

policy.json

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

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect FreeCAD Robust MCP Server, apply this rule, and every create_ellipse call is checked against it from then on.

FAQ

Questions about create_ellipse

What does the create_ellipse tool do? +

create_ellipse is a write tool on the FreeCAD Robust MCP Server MCP server. 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 create_ellipse? +

Register the FreeCAD Robust MCP Server MCP server in PolicyLayer and add a rule for create_ellipse: 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 create_ellipse? +

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

Can I rate-limit create_ellipse? +

Yes. Add a rate_limit block to the create_ellipse 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 create_ellipse completely? +

Set action: deny in the PolicyLayer policy for create_ellipse. 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 create_ellipse? +

create_ellipse 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.

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