sheet_metal_face · Inventor MCP: Risk & Policy

WHAT IT DOES

What sheet_metal_face does on Inventor

AI agents use sheet_metal_face to create or update resources in Inventor — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Inventor environment.

WHY IT NEEDS A POLICY

Why sheet_metal_face needs a policy

This tool creates new parametric geometry in Autodesk Inventor, which is a reversible modification. While it modifies the model state, sheet metal face creation is not destructive (data can be undone or removed via delete_feature), and it doesn't execute arbitrary code or move financial assets.

From the tool's definition Tool creates a Sheet Metal Face from a closed sketch profile. Description uses 'Create' which indicates data generation/modification. The tool generates new geometry in the 3D model but does not delete existing data or execute arbitrary code.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

sheet_metal_face Rate-limited

sheet_metal_face 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": {
    "sheet_metal_face": {
      "limits": [
        {
          "counter": "sheet_metal_face_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Inventor, so you can run agents against it safely.

FAQ

Questions about sheet_metal_face

What does the sheet_metal_face tool do? +

Create a base Sheet Metal Face from a closed sketch profile. It is categorised as a Write tool in the Inventor MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on sheet_metal_face? +

Register the Inventor MCP server in PolicyLayer and add a rule for sheet_metal_face: 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 Inventor. Nothing to install.

What risk level is sheet_metal_face? +

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

Can I rate-limit sheet_metal_face? +

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

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

sheet_metal_face is provided by the Inventor MCP server (neonglay/inventor-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.