chamfer · Inventor MCP: Risk & Policy

WHAT IT DOES

What chamfer does on Inventor

AI agents use chamfer 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 chamfer needs a policy

The chamfer operation creates or modifies model geometry in Autodesk Inventor. While reversible (can be undone/edited in CAD), it alters the design artifact persistently within the model file. This is a Write category action rather than Execute (no code/script execution) or Destructive (modification is reversible).

From the tool's definition Tool description states it 'Add[s] chamfer (angled edge) to edges of the solid body.' This modifies the 3D model geometry by adding a new feature to edges, which is a reversible write operation typical of CAD modeling.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

chamfer Rate-limited

chamfer 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": {
    "chamfer": {
      "limits": [
        {
          "counter": "chamfer_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 chamfer

What does the chamfer tool do? +

Add chamfer (angled edge) to edges of the solid body. Distance in mm. 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 chamfer? +

Register the Inventor MCP server in PolicyLayer and add a rule for chamfer: 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 chamfer? +

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

Can I rate-limit chamfer? +

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

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

chamfer 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.