send_whatsapp_broadcast

SERVERHermoso SOURCEhttps://app.hermoso.ai/mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/hermoso/send-whatsapp-broadcast.md

WHAT IT DOES

What send_whatsapp_broadcast does on Hermoso

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

RISK

Why send_whatsapp_broadcast is rated Medium

An AI agent can call send_whatsapp_broadcast faster than any human can review: one bad instruction and it creates or modifies resources in Hermoso by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs send_whatsapp_broadcast safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Hermoso, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For send_whatsapp_broadcast, this is the rule to start with:

send_whatsapp_broadcast Rate-limited

send_whatsapp_broadcast 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": {
    "send_whatsapp_broadcast": {
      "limits": [
        {
          "counter": "send_whatsapp_broadcast_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Hermoso, apply this rule, and every send_whatsapp_broadcast call is checked against it from then on.

FAQ

Questions about send_whatsapp_broadcast

What does the send_whatsapp_broadcast tool do? +

Send ONE approved WhatsApp template to MANY recipients — a customer list, a segment, a launch announcement. TEMPLATES ONLY: WhatsApp accepts free-form text only inside the 24-hour customer-service window that opens when THAT person messages the business, so a free-form broadcast is a separate bet on a separate window per person and Meta refuses each closed one. META HAS NO BULK ENDPOINT, so this is a paced fan-out — one message per recipient, about 10 a second — which is why it runs as a QUEUED JOB and returns a job id rather than a result: nothing has been sent when the call returns. Poll it by calling this tool again with. It is categorised as a Write tool in the Hermoso MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on send_whatsapp_broadcast? +

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

What risk level is send_whatsapp_broadcast? +

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

Can I rate-limit send_whatsapp_broadcast? +

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

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

send_whatsapp_broadcast is provided by the Hermoso MCP server (https://app.hermoso.ai/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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