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victor-halla

wwebjs-mcp

by victor-halla

groupChat_getGroupMembershipRequests

Get pending membership requests for a WhatsApp group chat by providing session ID and chat ID.

Instructions

[Group Chat] Get the membership requests

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
chatIdNoUnique WhatsApp id for the given chat group
sessionIdYesUnique identifier for the session (alphanumeric and - allowed)
Behavior2/5

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

No annotations are provided, so the description carries the full burden. It only states 'Get the membership requests' without disclosing whether returns pending, approved, or all requests, whether any side effects occur, or if special permissions are required. The read-only nature is implied but not explicitly stated.

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?

The description is a single concise phrase, front-loaded with the group chat context. It avoids unnecessary words, but it is a fragment rather than a full sentence, making it slightly less polished.

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?

The tool is simple, but with no output schema, the description does not clarify what the return value contains (e.g., list of pending requests). It also lacks context on when to use it relative to the approve/reject siblings, leaving gaps for an agent.

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 description does not mention any parameters, but the input schema has 100% coverage, providing descriptions for both chatId and sessionId. The schema carries the parameter semantics, so the description adds no extra value but is not penalized heavily.

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 identifies the action ('Get') and the resource ('membership requests') with a '[Group Chat]' prefix, making its purpose explicit. It distinguishes itself from sibling tools like approve/reject membership requests by being the read operation.

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 should be called before approving or rejecting requests, nor does it explain the typical workflow. Sibling names imply a relationship, but the description itself offers no usage context.

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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