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Sealjay

mcp-whatsapp

send_typing

Idempotent

Show or hide a typing or recording indicator in a WhatsApp chat. The indicator auto-expires after 25 seconds.

Instructions

Show or hide a typing/recording indicator in a specific chat. The indicator auto-expires after ~25 seconds. Use send_presence for global online/offline status instead.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
activeYesTrue = composing/recording, false = paused
chat_jidYesWhatsApp JID: individual as `<digits>@s.whatsapp.net` or bare phone digits, group as `<digits>-<timestamp>@g.us`
kindNo'' for text (default) or 'audio' for recording
Behavior4/5

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

Annotations already declare mutation (readOnlyHint=false), non-destructive (destructiveHint=false), and idempotent (idempotentHint=true). The description adds that the indicator auto-expires after ~25 seconds, which is useful context beyond annotations.

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?

Two sentences, zero waste. Front-loads purpose and adds key behavior and alternative in the second sentence.

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

Completeness5/5

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

For a simple indicator tool with well-described parameters, the description is complete—covers purpose, behavior (auto-expiry), and when to use alternative. No gaps.

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% with all parameters described. The description does not add additional meaning beyond the schema, so a baseline score of 3 is appropriate.

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?

Clearly states the action ('Show or hide') and the resource ('typing/recording indicator in a specific chat'). Distinguishes from sibling tool send_presence.

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?

Provides explicit guidance for when to use this tool vs send_presence for global status. Mentions auto-expire behavior but does not cover other potential alternatives or exclusions.

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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