segment_image · OpenSCAD MCP Server MCP: Risk & Policy

WHAT IT DOES

What segment_image does on OpenSCAD MCP Server

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

WHY IT NEEDS A POLICY

Why segment_image needs a policy

An AI agent can call segment_image faster than any human can review — one bad instruction and it creates or modifies resources in OpenSCAD MCP Server by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

segment_image Rate-limited

segment_image 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": {
    "segment_image": {
      "limits": [
        {
          "counter": "segment_image_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 OpenSCAD MCP Server, so you can run agents against it safely.

FAQ

Questions about segment_image

What does the segment_image tool do? +

segment_image. It is categorised as a Write tool in the OpenSCAD MCP 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 segment_image? +

Register the OpenSCAD MCP Server MCP server in PolicyLayer and add a rule for segment_image: 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 OpenSCAD MCP Server. Nothing to install.

What risk level is segment_image? +

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

Can I rate-limit segment_image? +

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

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

segment_image is provided by the OpenSCAD MCP Server MCP server (jhacksman/openscad-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.