whatsapp_send_message · VIDA AI WhatsApp MCP Server MCP

WHAT IT DOES

What whatsapp_send_message does on VIDA AI WhatsApp MCP Server

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

WHY IT NEEDS A POLICY

Why whatsapp_send_message needs a policy

This tool modifies state by creating new messages in WhatsApp conversations. Although not destructive (messages aren't permanently unrecoverable by the business), it is a write operation that commits information to external parties.

From the tool's definition Tool description states it "Send[s] a WhatsApp message to a contact" - this creates new data (messages) in a communication channel. The name explicitly includes "send" which is a write operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

whatsapp_send_message Rate-limited

whatsapp_send_message 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_send_message": {
      "limits": [
        {
          "counter": "whatsapp_send_message_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 VIDA AI WhatsApp MCP Server, so you can run agents against it safely.

FAQ

Questions about whatsapp_send_message

What does the whatsapp_send_message tool do? +

Send a WhatsApp message to a contact. The message goes through the VIDA AI relay. It is categorised as a Write tool in the VIDA AI 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_send_message? +

Register the VIDA AI WhatsApp MCP Server MCP server in PolicyLayer and add a rule for whatsapp_send_message: 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 VIDA AI WhatsApp MCP Server. Nothing to install.

What risk level is whatsapp_send_message? +

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

Can I rate-limit whatsapp_send_message? +

Yes. Add a rate_limit block to the whatsapp_send_message 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_send_message completely? +

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

whatsapp_send_message is provided by the VIDA AI WhatsApp MCP Server MCP server (juancvergara1/vidaai-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.