create_campaign

A write tool on the Mailchimp MCP server.

SERVERMailchimp MCP SOURCEdamientilman/mailchimp-mcp-server

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/damientilman-mailchimp-mcp-server/create-campaign.md

WHAT IT DOES

What create_campaign does on Mailchimp MCP

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

RISK

Why create_campaign is rated Medium

Creating a campaign in Mailchimp is a reversible write operation that establishes marketing content and distribution parameters. While high-impact (campaigns affect multiple recipients), it is not destructive (can be edited or deleted), not financial (no direct payment), and not execute-level arbitrary code.

From the tool's definition Tool name is 'create_campaign' and resides on Mailchimp MCP server which manages email marketing data. The 'create_' prefix and campaign context indicate data creation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_campaign safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Mailchimp MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For create_campaign, this is the rule to start with:

create_campaign Rate-limited

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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_campaign": {
      "limits": [
        {
          "counter": "create_campaign_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Mailchimp MCP, apply this rule, and every create_campaign call is checked against it from then on.

FAQ

Questions about create_campaign

What does the create_campaign tool do? +

create_campaign is a write tool on the Mailchimp MCP server. It is categorised as a Write tool in the Mailchimp MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_campaign? +

Register the Mailchimp MCP server in PolicyLayer and add a rule for 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 Mailchimp MCP. Nothing to install.

What risk level is create_campaign? +

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

Can I rate-limit create_campaign? +

Yes. Add a rate_limit block to the 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.

How do I block create_campaign completely? +

Set action: deny in the PolicyLayer policy for 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.

What MCP server provides create_campaign? +

create_campaign is provided by the Mailchimp MCP server (damientilman/mailchimp-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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