tool_upscale_image · Open Google Image Generator MCP

WHAT IT DOES

What tool_upscale_image does on Open Google Image Generator MCP

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

WHY IT NEEDS A POLICY

Why tool_upscale_image needs a policy

This tool transforms an existing image by increasing its resolution. It creates a modified version of the image (Write), and does not delete original data, execute code, or have financial implications. The blast radius is low since it only affects image files the agent explicitly targets.

From the tool's definition Upscale a low resolution image

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

tool_upscale_image Rate-limited

tool_upscale_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": {
    "tool_upscale_image": {
      "limits": [
        {
          "counter": "tool_upscale_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 Open Google Image Generator MCP, so you can run agents against it safely.

FAQ

Questions about tool_upscale_image

What does the tool_upscale_image tool do? +

Upscale a low resolution image. It is categorised as a Write tool in the Open Google Image Generator MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on tool_upscale_image? +

Register the Open Google Image Generator MCP server in PolicyLayer and add a rule for tool_upscale_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 Open Google Image Generator MCP. Nothing to install.

What risk level is tool_upscale_image? +

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

Can I rate-limit tool_upscale_image? +

Yes. Add a rate_limit block to the tool_upscale_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 tool_upscale_image completely? +

Set action: deny in the PolicyLayer policy for tool_upscale_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 tool_upscale_image? +

tool_upscale_image is provided by the Open Google Image Generator MCP server (miracorhan/opengoogleimagegeneratormcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.