replace_image_creative_file · AdButler MCP: Risk & Policy

WHAT IT DOES

What replace_image_creative_file does on AdButler

AI agents use replace_image_creative_file 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
`id`	number	Yes	Creative ID

Parameters from the server's own tool schema.

WHY IT NEEDS A POLICY

Why replace_image_creative_file needs a policy

This tool modifies an existing creative resource by replacing its file content. While the operation is reversible (the old file could theoretically be restored), it directly overwrites creative assets used in ad campaigns, which could impact campaign performance or accidentally replace content with incorrect material.

From the tool's definition Tool name 'replace_image_creative_file' and description 'Replace the file on an image creative' indicate modification of an existing creative asset.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

replace_image_creative_file Rate-limited

replace_image_creative_file 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": {
    "replace_image_creative_file": {
      "limits": [
        {
          "counter": "replace_image_creative_file_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 replace_image_creative_file

What does the replace_image_creative_file tool do? +

Replace the file on an image creative. 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 replace_image_creative_file accept? +

replace_image_creative_file accepts 1 parameter: id. Required: id. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on replace_image_creative_file? +

Register the AdButler MCP server in PolicyLayer and add a rule for replace_image_creative_file: 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 replace_image_creative_file? +

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

Can I rate-limit replace_image_creative_file? +

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

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

replace_image_creative_file 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.