whatsapp_webhook_set

Set (or remove) this WhatsApp install's outbound webhook. Owner/admin only.

To set: pass url (https only, not localhost). events is the list of subscribed events ("permissions") — e.g. ["whatsapp.message"], or ["whatsapp.*"] for every WhatsApp event, or [] / omit for ALL events. See available_events from whatsapp_webhook_get. include_result (default true) controls whether the tool result is included in tool.call payloads. secret is optional (reserved).
Subscribing to any whatsapp.* event makes the daemon hold a live connection per number and forward inbound messages to your URL.
To remove the webhook: pass remove: true (or an empty url).

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "whatsapp_webhook_set"
  }
}

Input Schema

Name	Required	Description	Default
`url`	No
`events`	No
`remove`	No
`secret`	No
`include_result`	No

Schema Changelog

Changes observed during successful MCP inspections.

First observedAug 21, 2026

TDQS

A4.6/5.0

Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations give no hints on permissions or side effects, but description explicitly states 'Owner/admin only' and explains that subscribing to whatsapp.* makes the daemon hold live connections, which is key behavioral context. It also notes https-only, no-localhost, and include_result default. This adds real value beyond annotations.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Well-structured with bullet-like segments and clear separation of set vs remove modes. Slightly verbose in the events explanation, but every sentence carries necessary info. No fluff.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Covers permissions (owner/admin), URL constraints, event semantics, side effects of live connection, and removal mode. Missing explicit return value description, but for a set operation the absence is acceptable. With no output schema, a note on what the tool returns would make it complete.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters5/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 0% and params are just types. The description explains every parameter: url (https only, not localhost), events (examples, [] for all), include_result (default true), secret (optional/reserved), remove (boolean to remove). Also clarifies the relationship between url and remove. This is exemplary parameter documentation.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool sets or removes an outbound webhook for a WhatsApp install, with owner/admin-only access. It explicitly distinguishes from the sibling tool whatsapp_webhook_get by focusing on the set/remove mutation side.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Provides explicit when-to-use instructions: passing `url` sets, `remove: true` (or empty url) removesched. It also mentions prerequisites (owner/admin only) and refers to whatsapp_webhook_get for available events. Clear contexts and mode distinction.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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