create_prism

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-prism.md

WHAT IT DOES

What create_prism does on FreeCAD Robust MCP Server

AI agents use create_prism 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_prism is rated Medium

The tool appears to create or add a prism object to a FreeCAD model, which is a reversible write operation. While the description is empty, the naming pattern and sibling tools strongly suggest geometric object creation. Severity is medium because misuse could create unwanted geometry in a model file, but the operation is reversible (can be undone in FreeCAD). Confidence is moderate due to the missing description.

From the tool's definition Tool name 'create_prism' suggests creation of a 3D geometric object in FreeCAD. The sibling tools (add_sketch_arc, add_sketch_circle, add_sketch_line, add_sketch_point, add_sketch_polygon) all create/add geometric entities.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_prism 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_prism, this is the rule to start with:

create_prism Rate-limited

create_prism 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_prism": {
      "limits": [
        {
          "counter": "create_prism_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_prism call is checked against it from then on.

FAQ

Questions about create_prism

What does the create_prism tool do? +

create_prism 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_prism? +

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

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

Can I rate-limit create_prism? +

Yes. Add a rate_limit block to the create_prism 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_prism completely? +

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

create_prism 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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