conversational_image · Imagen MCP: Risk & Policy

WHAT IT DOES

What conversational_image does on Imagen

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

WHY IT NEEDS A POLICY

Why conversational_image needs a policy

Given the server context (multi-provider image generation with 'conversational refinement') and the tool name, this likely generates or refines images through conversation. Without a description, the best guess is Write (creates/modifies image content), but confidence is low due to the empty description.

From the tool's definition Tool name 'conversational_image' on a server for image generation; description is empty and uninformative.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

conversational_image Rate-limited

conversational_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": {
    "conversational_image": {
      "limits": [
        {
          "counter": "conversational_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 Imagen, so you can run agents against it safely.

FAQ

Questions about conversational_image

What does the conversational_image tool do? +

conversational_image. It is categorised as a Write tool in the Imagen MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on conversational_image? +

Register the Imagen MCP server in PolicyLayer and add a rule for conversational_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 Imagen. Nothing to install.

What risk level is conversational_image? +

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

Can I rate-limit conversational_image? +

Yes. Add a rate_limit block to the conversational_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 conversational_image completely? +

Set action: deny in the PolicyLayer policy for conversational_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 conversational_image? +

conversational_image is provided by the Imagen MCP server (michaeljabbour/imagen-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.