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wsapi-chat

WSAPI WhatsApp MCP Server

by wsapi-chat

whatsapp_edit_message

Modify a previously sent WhatsApp text message by providing the message ID, recipient chat JID, and new text content. Supports optional mentions and expiration settings.

Instructions

Edit a previously sent text message.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
messageIdYesID of the message to edit
toYesChat JID
textYesNew text content (max 4096 characters)
mentionsNo
ephemeralExpirationNo
Behavior2/5

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

With no annotations, the description must convey behavioral traits. It only says 'edit' without specifying side effects, limits (e.g., max edits, time window), or confirmation that it updates the original message.

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

Conciseness5/5

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

Single sentence, front-loaded with essential information: verb and resource. No filler or redundancy.

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

Completeness2/5

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

Minimal description for a mutation tool with no output schema or annotations. Lacks details on constraints (e.g., message age, edit count), which are critical for correct usage.

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

Parameters3/5

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

The input schema has descriptions for all parameters, but the tool description adds no extra meaning. Given the 60% schema coverage signal, the description doesn't compensate for any missing parameter details.

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 'Edit a previously sent text message' clearly states the action (edit) and resource (previously sent text message), distinguishing it from sending or deleting messages.

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

Usage Guidelines2/5

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

No usage guidelines provided: no context on when to use vs alternatives (e.g., deleting and resending), no prerequisites, no conditions for editing (e.g., time limit, ownership).

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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