image_gen · Zero Network MCP Server MCP: Risk & Policy

WHAT IT DOES

What image_gen does on Zero Network MCP Server

AI agents call image_gen as a supporting operation in Zero Network MCP Server workflows.

WHY IT NEEDS A POLICY

Why image_gen needs a policy

With an empty description, the only signal is the name 'image_gen', which suggests image generation (a Write-like operation). However, in the context of a crypto payments / Zero Network MCP server, this tool's exact behavior is unknown. Given the ambiguity and the server context (which includes code execution and financial tools), confidence is very low.

From the tool's definition Tool name is 'image_gen' but the description is empty and uninformative. No details about what the tool does, what inputs it takes, or what side effects it may have.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

image_gen Rate-limited

image_gen gets a rate cap, and everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "image_gen": {
      "limits": [
        {
          "counter": "image_gen_rate",
          "window": "minute",
          "max": 60,
          "scope": "grant"
        }
      ]
    }
  }
}

SET A RULE FOR THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Zero Network MCP Server, so you can run agents against it safely.

FAQ

Questions about image_gen

What does the image_gen tool do? +

image_gen. It is categorised as a Other tool in the Zero Network MCP Server MCP Server, which means it performs auxiliary operations.

How do I enforce a policy on image_gen? +

Register the Zero Network MCP Server MCP server in PolicyLayer and add a rule for image_gen: 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 Zero Network MCP Server. Nothing to install.

What risk level is image_gen? +

image_gen is a Other tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit image_gen? +

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

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

image_gen is provided by the Zero Network MCP Server MCP server (zzero-net/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.