rotate_stl · MCP 3D Printer Server MCP: Risk & Policy

WHAT IT DOES

What rotate_stl does on MCP 3D Printer Server

AI agents use rotate_stl to create or update resources in MCP 3D Printer Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your MCP 3D Printer Server environment.

WHY IT NEEDS A POLICY

Why rotate_stl needs a policy

This tool modifies an STL file by rotating it, which is a reversible geometric transformation (Write). It does not delete data, execute code, move money, or trigger external operations beyond transforming the model geometry. Misuse could corrupt or unintentionally alter design files, warranting medium severity.

From the tool's definition Rotate an STL model around specific axes

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

rotate_stl Rate-limited

rotate_stl 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": {
    "rotate_stl": {
      "limits": [
        {
          "counter": "rotate_stl_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 MCP 3D Printer Server, so you can run agents against it safely.

FAQ

Questions about rotate_stl

What does the rotate_stl tool do? +

Rotate an STL model around specific axes. It is categorised as a Write tool in the MCP 3D Printer Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on rotate_stl? +

Register the MCP 3D Printer Server MCP server in PolicyLayer and add a rule for rotate_stl: 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 MCP 3D Printer Server. Nothing to install.

What risk level is rotate_stl? +

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

Can I rate-limit rotate_stl? +

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

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

rotate_stl is provided by the MCP 3D Printer Server MCP server (mcpflow/dmontgomery40_mcp-3d-printer-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.