create_helix

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-helix.md

WHAT IT DOES

What create_helix does on FreeCAD Robust MCP Server

AI agents use create_helix 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_helix is rated Medium

FreeCAD is a 3D modeling tool. Creating geometric objects like helixes is a reversible Write operation—the created geometry can be edited or deleted, but the tool itself modifies the model state. Without a description, confidence is reduced, but contextual evidence from sibling tools strongly suggests this is a geometry creation (Write) rather than an irreversible operation.

From the tool's definition Tool named 'create_helix' with empty description on a FreeCAD modeling server. Sibling tools (add_sketch_arc, add_sketch_line, add_sketch_point, etc.) are all Write-class sketch/geometry creation operations.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_helix 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_helix, this is the rule to start with:

create_helix Rate-limited

create_helix 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_helix": {
      "limits": [
        {
          "counter": "create_helix_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_helix call is checked against it from then on.

FAQ

Questions about create_helix

What does the create_helix tool do? +

create_helix 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_helix? +

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

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

Can I rate-limit create_helix? +

Yes. Add a rate_limit block to the create_helix 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_helix completely? +

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

create_helix 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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