campaigns · Brevo MCP Server MCP: Risk & Policy

WHAT IT DOES

What campaigns does on Brevo MCP Server

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

WHY IT NEEDS A POLICY

Why campaigns needs a policy

This tool primarily performs reversible write operations (create, update, schedule). While 'send' triggers external communication with potential reputational and operational impact, it is not irreversibly destructive of data and could theoretically be mitigated.

From the tool's definition Tool description states: 'create, update, send, schedule campaigns' for email and SMS. The 'send' and 'schedule' actions have significant side effects as they trigger mass communication to recipients.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

campaigns Rate-limited

campaigns 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": {
    "campaigns": {
      "limits": [
        {
          "counter": "campaigns_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 Brevo MCP Server, so you can run agents against it safely.

FAQ

Questions about campaigns

What does the campaigns tool do? +

Email and SMS campaign management - create, update, send, schedule campaigns. It is categorised as a Write tool in the Brevo MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on campaigns? +

Register the Brevo MCP Server MCP server in PolicyLayer and add a rule for campaigns: 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 Brevo MCP Server. Nothing to install.

What risk level is campaigns? +

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

Can I rate-limit campaigns? +

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

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

campaigns is provided by the Brevo MCP Server MCP server (samihalawa/brevo-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.