whatsapp_set_newsletter_subscription

WHAT IT DOES

What whatsapp_set_newsletter_subscription does on WSAPI WhatsApp MCP Server

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

WHY IT NEEDS A POLICY

Why whatsapp_set_newsletter_subscription needs a policy

The tool creates or modifies a subscription preference (reversibly), falling under Write category. Severity is medium because misuse could alter user communication preferences and subscriptions without consent, potentially exposing the user to unwanted communications or severing desired connections, but the effect remains reversible via unsubscription.

From the tool's definition Tool name and description indicate it 'Subscribe or unsubscribe from a newsletter' — this modifies subscription state, which is a reversible data modification operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

whatsapp_set_newsletter_subscription Rate-limited

whatsapp_set_newsletter_subscription 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": {
    "whatsapp_set_newsletter_subscription": {
      "limits": [
        {
          "counter": "whatsapp_set_newsletter_subscription_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches WSAPI WhatsApp MCP Server, so you can run agents against it safely.

FAQ

Questions about whatsapp_set_newsletter_subscription

What does the whatsapp_set_newsletter_subscription tool do? +

Subscribe or unsubscribe from a newsletter. It is categorised as a Write tool in the WSAPI WhatsApp 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 whatsapp_set_newsletter_subscription? +

Register the WSAPI WhatsApp MCP Server MCP server in PolicyLayer and add a rule for whatsapp_set_newsletter_subscription: 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 WSAPI WhatsApp MCP Server. Nothing to install.

What risk level is whatsapp_set_newsletter_subscription? +

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

Can I rate-limit whatsapp_set_newsletter_subscription? +

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

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

whatsapp_set_newsletter_subscription is provided by the WSAPI WhatsApp MCP Server MCP server (wsapi-chat/wsapi-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.