create_template · Whatsapp MCP: Risk & Policy

WHAT IT DOES

What create_template does on Whatsapp

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

WHY IT NEEDS A POLICY

Why create_template needs a policy

This tool creates new message templates that are stored in the WhatsApp system. It is reversible (templates can be deleted via delete_template, as evidenced by sibling tool availability) and has no immediate destructive or financial impact.

From the tool's definition Tool name 'create_template' and description 'Create a new message template' indicate data creation. The mention of Meta approval requirement confirms this creates persistent, reusable messaging assets within WhatsApp Business Cloud API.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_template Rate-limited

create_template 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_template": {
      "limits": [
        {
          "counter": "create_template_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 Whatsapp, so you can run agents against it safely.

FAQ

Questions about create_template

What does the create_template tool do? +

Create a new message template. Must be approved by Meta before use. Use {{1}}, {{2}} for dynamic parameters. It is categorised as a Write tool in the Whatsapp 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_template? +

Register the Whatsapp MCP server in PolicyLayer and add a rule for create_template: 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 Whatsapp. Nothing to install.

What risk level is create_template? +

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

Can I rate-limit create_template? +

Yes. Add a rate_limit block to the create_template 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_template completely? +

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

create_template is provided by the Whatsapp MCP server (spirit122/whatsapp-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.