create_creative · AdButler MCP: Risk & Policy

WHAT IT DOES

What create_creative does on AdButler

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

PARAMETERS

Parameter	Type	Required	Description
`name`	string	—	Creative name
`group`	number	Yes	Media group ID
`description`	string	—	Creative description

Parameters from the server's own tool schema.

WHY IT NEEDS A POLICY

Why create_creative needs a policy

This tool creates new advertising creative assets (image files) in the AdButler system. Creation is a write operation that modifies system state by adding new resources. It is not destructive (does not delete), not financial (does not move money), and not execute (does not run arbitrary code).

From the tool's definition Tool name: 'create_creative' with description 'Create a new image creative' - the verb 'create' indicates irreversible data creation. The multipart file upload mechanism confirms it writes new media to the system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_creative Rate-limited

create_creative 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": {
    "create_creative": {
      "limits": [
        {
          "counter": "create_creative_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 AdButler, so you can run agents against it safely.

FAQ

Questions about create_creative

What does the create_creative tool do? +

Create a new image creative. The API uses multipart file upload — pass the media group ID and file attributes. It is categorised as a Write tool in the AdButler MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does create_creative accept? +

create_creative accepts 3 parameters: name, group, description. Required: group. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on create_creative? +

Register the AdButler MCP server in PolicyLayer and add a rule for create_creative: 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 AdButler. Nothing to install.

What risk level is create_creative? +

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

Can I rate-limit create_creative? +

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

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

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