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wsapi-chat

WSAPI WhatsApp MCP Server

by wsapi-chat

whatsapp_join_group_with_invite

Accept a group invite received via direct message to join a WhatsApp group. Provide the group JID, inviter ID, invite code, and optional expiration timestamp to complete the membership.

Instructions

Accept a group invite received via direct message.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
groupIdYesGroup JID
inviterIdYesInviter JID
codeYesInvite code
expirationNoInvite expiration timestamp
Behavior2/5

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

No annotations are provided, leaving the description to carry the full burden. It only states 'accept a group invite' without disclosing side effects like what happens if the invite is expired or if already a member.

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 sentence that is front-loaded and efficient, though it could include more context without becoming verbose.

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 a mutative action with no output schema. The description lacks details on prerequisites, expected outcomes, or potential failures, making it incomplete for an agent to fully understand the tool's behavior.

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 the parameters are already well-documented. The description adds no additional semantic value beyond what the schema provides.

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 accepts a group invite via direct message, distinguishing it from similar tools like whatsapp_join_group_with_link.

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

Usage Guidelines4/5

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

The description provides clear context for when to use the tool (accepting invites from direct messages) but does not explicitly state when not to use it or mention alternatives.

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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