rhino_import_ifc

Import an IFC file, mapping each entity to a layer under target_layer_root (bridge only).

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-import-ifc.md

WHAT IT DOES

What rhino_import_ifc does on Rhino

AI agents use rhino_import_ifc 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_import_ifc is rated Medium

Importing an IFC file modifies the Rhino document by adding new geometry and organizational structures (layers). While this is a significant operation that could impact the document state, it is reversible and does not execute arbitrary commands or destructively overwrite existing data.

From the tool's definition Tool description states "Import an IFC file, mapping each entity to a layer" — this creates new geometric data and layers within the Rhino model based on the imported file.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs rhino_import_ifc 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_import_ifc, this is the rule to start with:

rhino_import_ifc Rate-limited

rhino_import_ifc 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_import_ifc": {
      "limits": [
        {
          "counter": "rhino_import_ifc_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_import_ifc call is checked against it from then on.

FAQ

Questions about rhino_import_ifc

What does the rhino_import_ifc tool do? +

Import an IFC file, mapping each entity to a layer under target_layer_root (bridge only). 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_import_ifc? +

Register the Rhino MCP server in PolicyLayer and add a rule for rhino_import_ifc: 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_import_ifc? +

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

Can I rate-limit rhino_import_ifc? +

Yes. Add a rate_limit block to the rhino_import_ifc 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_import_ifc completely? +

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

rhino_import_ifc 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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