create_cylinder

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-cylinder.md

WHAT IT DOES

What create_cylinder does on FreeCAD Robust MCP Server

AI agents use create_cylinder 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_cylinder is rated Medium

The tool creates a new geometric object (cylinder) in FreeCAD, which is a reversible Write operation. It modifies the design state by adding geometry, but the change can be undone. Severity is medium because misuse could waste computational resources or pollute the model with unwanted geometry, but the action is recoverable. Confidence is reduced from 0.85 to 0.75 due to the empty description.

From the tool's definition Tool name 'create_cylinder' indicates creation of a 3D model object in FreeCAD. Description is empty but context from sibling tools (add_sketch_arc, add_sketch_line, etc.) and the server's purpose ('3D modeling') clarifies this is a modeling operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_cylinder 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_cylinder, this is the rule to start with:

create_cylinder Rate-limited

create_cylinder 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_cylinder": {
      "limits": [
        {
          "counter": "create_cylinder_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_cylinder call is checked against it from then on.

FAQ

Questions about create_cylinder

What does the create_cylinder tool do? +

create_cylinder 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_cylinder? +

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

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

Can I rate-limit create_cylinder? +

Yes. Add a rate_limit block to the create_cylinder 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_cylinder completely? +

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

create_cylinder 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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