generate_image_gemini · OpenSCAD MCP Server MCP

WHAT IT DOES

What generate_image_gemini does on OpenSCAD MCP Server

AI agents invoke generate_image_gemini to trigger actions in OpenSCAD MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why generate_image_gemini needs a policy

This tool triggers an external operation (calling Google Gemini's API to generate an image). It doesn't merely read existing data, but actively invokes a third-party AI service to create new content. The effects depend on the prompt/arguments passed. Misuse could result in generation of inappropriate content or unintended API usage/costs, warranting medium severity.

From the tool's definition Generate an image using Google Gemini's image generation models

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

generate_image_gemini Rate-limited

generate_image_gemini stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "generate_image_gemini": {
      "limits": [
        {
          "counter": "generate_image_gemini_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-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 generate_image_gemini

What does the generate_image_gemini tool do? +

Generate an image using Google Gemini's image generation models. It is categorised as a Execute tool in the OpenSCAD MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on generate_image_gemini? +

Register the OpenSCAD MCP Server MCP server in PolicyLayer and add a rule for generate_image_gemini: 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 generate_image_gemini? +

generate_image_gemini is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit generate_image_gemini? +

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

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

generate_image_gemini 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.