configure_auto_reply · Whatsapp MCP: Risk & Policy

WHAT IT DOES

What configure_auto_reply does on Whatsapp

AI agents use configure_auto_reply 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 configure_auto_reply needs a policy

This tool writes/modifies the auto-reply configuration for a WhatsApp Business account. It sets up automated behavior that will affect all incoming messages going forward. Misuse could result in sending inappropriate automated replies to all customers at scale, making it high severity. It is reversible (configuration can be changed), so Write is appropriate rather than Destructive.

From the tool's definition Configure AI-powered automatic replies to incoming WhatsApp messages

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

configure_auto_reply Rate-limited

configure_auto_reply 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": {
    "configure_auto_reply": {
      "limits": [
        {
          "counter": "configure_auto_reply_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 configure_auto_reply

What does the configure_auto_reply tool do? +

Enterprise only. Configure AI-powered automatic replies to incoming WhatsApp messages. 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 configure_auto_reply? +

Register the Whatsapp MCP server in PolicyLayer and add a rule for configure_auto_reply: 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 configure_auto_reply? +

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

Can I rate-limit configure_auto_reply? +

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

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

configure_auto_reply 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.