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yusufekorman

WAHA MCP Server

by yusufekorman

waha_set_group_description

Update the description of a WhatsApp group using the WAHA API. Provide the group ID and new text to change group info instantly.

Instructions

Set the group description

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
groupIdYes
descriptionYes
Behavior2/5

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

There are no annotations, so the description must disclose behavioral traits. It states 'Set' implying a mutation, but it does not mention side effects, permissions, or whether the description is overwritten. No behavioral context beyond the action itself.

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?

The description is a single, clear sentence with no unnecessary words or repetition. It is appropriately concise for the simple operation it describes.

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 description is too sparse to be complete. With no annotations and no schema descriptions, the tool lacks essential context about when to use it, what the parameters mean, and what behavioral outcomes to expect.

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

Parameters1/5

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

Schema description coverage is 0%, and the description provides no additional meaning for the parameters. It does not explain what groupId represents or what format/content description expects, leaving the agent to rely solely on parameter names.

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 action ('Set') and the target resource ('group description'), making it unambiguous. It distinguishes from siblings like waha_set_group_subject by explicitly targeting 'description' rather than 'subject'.

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 guidance is provided on when to use this tool versus alternatives. There is no mention of prerequisites, use cases, or differences from similar tools like waha_set_group_subject.

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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