vast_create_ad_item · AdButler MCP: Risk & Policy

WHAT IT DOES

What vast_create_ad_item does on AdButler

AI agents use vast_create_ad_item 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	Yes	Ad item name
`active`	boolean	—	Whether ad item is active
`location`	string	Yes	VAST tag URL or media location

Parameters from the server's own tool schema.

WHY IT NEEDS A POLICY

Why vast_create_ad_item needs a policy

This tool creates new data (a VAST ad item) in the AdButler advertising platform, which is reversible (can be updated or deleted later). It does not execute code, delete data irreversibly, or move money. The blast radius is medium because creating malicious or incorrect ad items could disrupt advertising campaigns and affect monetization, but the action itself is not destructive and can be remedied.

From the tool's definition Tool name and description: 'Create a new VAST ad item' — the verb 'Create' directly indicates data creation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

vast_create_ad_item Rate-limited

vast_create_ad_item 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": {
    "vast_create_ad_item": {
      "limits": [
        {
          "counter": "vast_create_ad_item_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 vast_create_ad_item

What does the vast_create_ad_item tool do? +

Create a new VAST ad item. 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 vast_create_ad_item accept? +

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

How do I enforce a policy on vast_create_ad_item? +

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

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

Can I rate-limit vast_create_ad_item? +

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

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

vast_create_ad_item 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.