generate_image_group · Doubao Seedream MCP: Risk & Policy

WHAT IT DOES

What generate_image_group does on Doubao Seedream

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

WHY IT NEEDS A POLICY

Why generate_image_group needs a policy

This tool creates new image content based on input parameters. It is a Write operation as it produces/creates data (images) without irreversibly deleting anything or executing arbitrary code. Misuse could generate inappropriate content at scale, warranting medium severity.

From the tool's definition Generate a group of related images (sequential/comic-style)

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

generate_image_group Rate-limited

generate_image_group 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": {
    "generate_image_group": {
      "limits": [
        {
          "counter": "generate_image_group_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 Doubao Seedream, so you can run agents against it safely.

FAQ

Questions about generate_image_group

What does the generate_image_group tool do? +

Generate a group of related images (sequential/comic-style). Only for 5.0-lite/4.5/4.0. It is categorised as a Write tool in the Doubao Seedream MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on generate_image_group? +

Register the Doubao Seedream MCP server in PolicyLayer and add a rule for generate_image_group: 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 Doubao Seedream. Nothing to install.

What risk level is generate_image_group? +

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

Can I rate-limit generate_image_group? +

Yes. Add a rate_limit block to the generate_image_group 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_group completely? +

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

generate_image_group is provided by the Doubao Seedream MCP server (minggh/doubao-seedream-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.