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ptrel1

NapCat MCP Server

by ptrel1

set_group_ban

Mute a specified group member for a set duration in seconds to control chat activity.

Instructions

Mute group member

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
user_idYesUser QQ number
durationNoMute duration (seconds)
group_idYesGroup ID

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.3.0

TDQS

C2.9/5.0
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 of behavioral disclosure. It only says 'Mute group member' and does not explain what happens when duration is omitted, whether this is permanent, what permissions are needed, or how the mute can be lifted.

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 very short with no filler or redundant wording. However, it is so minimal that it functions more like a label than a structured explanation, so it earns a strong but not perfect conciseness score.

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?

For a mutation tool with no annotations and no output schema, the one-line description is thin. An agent lacks guidance on default mute duration, behavioral side effects, and how this relates to similar group moderation tools, leaving important context missing.

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 input schema already covers all three parameters with descriptions, giving a baseline of 3. The description adds little beyond the word 'mute' to clarify the effect of duration, so it does not meaningfully supplement the schema.

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?

Description states a specific verb ('Mute') and target ('group member'), making the operation clear and distinct from siblings like set_group_kick or set_group_whole_ban. It does not explicitly name alternatives, but the action is unambiguous enough for an agent to infer the tool's purpose.

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 gives no guidance on when to use this tool versus set_group_kick, set_group_whole_ban, or other sibling tools. There is no mention of prerequisites, permissions, or scenarios where this tool is preferred.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.