This record as markdown: /tools/adbutler/vast-create-campaign.md
What vast_create_campaign does on AdButler
AI agents use vast_create_campaign 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.
| Parameter | Type | Required | Description |
|---|---|---|---|
name | string | Yes | Campaign name |
contract | number | — | Contract ID (requires Contract Management add-on) |
advertiser | number | Yes | Advertiser ID |
Parameters from the server's own tool schema.
Why vast_create_campaign is rated Medium
This tool creates a new advertising campaign, which is a reversible write operation. It modifies the AdButler system state by adding a new campaign, but does not execute arbitrary code, delete data, or move money.
From the tool's definition Tool name is 'vast_create_campaign' with description 'Create a new VAST campaign'. The verb 'Create' and context of managing ad campaigns indicates this creates new data (a campaign resource).
Attacks that exploit this kind of access
The rule that runs vast_create_campaign safely
PolicyLayer is an MCP gateway: it sits between your AI agents and AdButler, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For vast_create_campaign, this is the rule to start with:
vast_create_campaign 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.
The button opens the PolicyLayer dashboard: create your workspace, connect AdButler, apply this rule, and every vast_create_campaign call is checked against it from then on.
Questions about vast_create_campaign
Create a new VAST campaign. 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.
vast_create_campaign accepts 3 parameters: name, contract, advertiser. Required: name, advertiser. The full parameter table on this page comes from the server's own tool schema.
Register the AdButler MCP server in PolicyLayer and add a rule for vast_create_campaign: 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.
vast_create_campaign is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the vast_create_campaign 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.
Set action: deny in the PolicyLayer policy for vast_create_campaign. 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.
vast_create_campaign 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.
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