import_model · Formlabs Local MCP: Risk & Policy

WHAT IT DOES

What import_model does on Formlabs Local

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

WHY IT NEEDS A POLICY

Why import_model needs a policy

Importing a model creates or adds new data to a scene/print job reversibly (the import can be undone via 'delete_model'). This is Write category rather than Execute because it primarily modifies state rather than triggering irreversible external actions, though it could lead to Execute-level consequences if malicious models are imported.

From the tool's definition Tool name 'import_model' combined with server context (Formlabs printer control via MCP) indicates importing 3D models into scenes for printing.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

import_model Rate-limited

import_model 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": {
    "import_model": {
      "limits": [
        {
          "counter": "import_model_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 Formlabs Local, so you can run agents against it safely.

FAQ

Questions about import_model

What does the import_model tool do? +

import_model. It is categorised as a Write tool in the Formlabs Local MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on import_model? +

Register the Formlabs Local MCP server in PolicyLayer and add a rule for import_model: 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 Formlabs Local. Nothing to install.

What risk level is import_model? +

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

Can I rate-limit import_model? +

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

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

import_model is provided by the Formlabs Local MCP server (mkebiclioglu/formlabs-local-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.