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Evolution API MCP Server

by serversmx

evolution_chat_send_presence

Send a composing, recording, or paused presence indicator to a WhatsApp chat to show activity status.

Instructions

Send a presence indicator to a chat (composing/recording/paused).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
delayNoHow long to show it, in ms.
numberYesRecipient phone number (digits, country code) or full WhatsApp JID.
instanceNoWhatsApp instance name. Optional if EVOLUTION_DEFAULT_INSTANCE is configured.
presenceYesPresence to display.
Behavior2/5

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

Annotations are absent, so the description must disclose behavior. It only states the action without side effects (e.g., whether presence resets after delay, connection requirements, or error cases).

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, efficient sentence with no extraneous information. It is front-loaded and to the point.

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

Completeness3/5

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

Given no output schema and 4 parameters, the description is minimally sufficient but lacks details about return behavior or prerequisites. It could mention that presence is temporary and the role of the 'delay' parameter.

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 coverage is 100%, so the description adds no value beyond what the schema already provides. It merely repeats the presence types, which are already in the enum description.

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 clearly states the tool sends a presence indicator to a chat, listing valid presence types. However, it does not explicitly differentiate from sibling tools like 'evolution_instance_set_presence' which might set instance-level presence, leaving some ambiguity.

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 (e.g., when to use 'evolution_instance_set_presence' for instance presence). There are no preconditions or context hints.

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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