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victor-halla

wwebjs-mcp

by victor-halla

groupChat_rejectGroupMembershipRequests

Reject pending membership requests in WhatsApp group chats using session ID and optional chat ID to control group access.

Instructions

[Group Chat] Reject membership request

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
chatIdNoUnique WhatsApp id for the given chat group
optionsNoOptions for performing a membership request action
sessionIdYesUnique identifier for the session (alphanumeric and - allowed)
Behavior2/5

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

With no annotations, the description must disclose behavioral traits itself. It only states the action without explaining reversibility, permissions, or effects on the group or requester. This is minimal but not entirely absent.

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

Conciseness3/5

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

The description is a single concise sentence with no wasted words, but it is under-specified. It is efficiently brief yet lacks necessary context, making it neither a model of completeness nor bloated.

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?

For a tool with a nested options object and no output schema, the description is incomplete. It does not explain how to specify requesters or what the response might contain, leaving the user to infer behavior solely from parameter names.

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?

Schema description coverage is 100%, so parameters (chatId, options, sessionId) are fully documented in the schema with descriptions and examples. The tool description adds no additional parameter meaning, but the baseline of 3 applies.

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

Purpose4/5

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

The description states the action clearly: 'Reject membership request' with a '[Group Chat]' prefix indicating the resource. This distinguishes it from sibling tools like groupChat_approveGroupMembershipRequests, though it lacks explicit scope details.

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?

The description provides no guidance on when to use this tool versus alternatives. It does not mention that it is for rejecting pending requests, nor does it reference the approve or get tools for related actions.

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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