rhino_extrude

Linearly extrude a profile curve by distance along direction.

SERVERRhino SOURCEeasehee/rhino-mcp

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/easehee-rhino-mcp/rhino-extrude.md

WHAT IT DOES

What rhino_extrude does on Rhino

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

RISK

Why rhino_extrude is rated Medium

Extruding a profile curve creates and adds new geometry to the Rhino model, which is a write/create operation. This is reversible through undo functionality typical in CAD software, so it is not Destructive. It does not execute arbitrary code or delete data, so Execute and Destructive are not appropriate.

From the tool's definition Tool description states 'extrude a profile curve by distance along direction', which creates or modifies 3D geometry. The action is reversible (can be undone) and creates new geometric data without deletion or destruction.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs rhino_extrude safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Rhino, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For rhino_extrude, this is the rule to start with:

rhino_extrude Rate-limited

rhino_extrude 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": {
    "rhino_extrude": {
      "limits": [
        {
          "counter": "rhino_extrude_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 Rhino, apply this rule, and every rhino_extrude call is checked against it from then on.

FAQ

Questions about rhino_extrude

What does the rhino_extrude tool do? +

Linearly extrude a profile curve by distance along direction. It is categorised as a Write tool in the Rhino MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on rhino_extrude? +

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

What risk level is rhino_extrude? +

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

Can I rate-limit rhino_extrude? +

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

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

rhino_extrude is provided by the Rhino MCP server (easehee/rhino-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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