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ptrel1

NapCat MCP Server

by ptrel1

delete_group_file

Delete a file from a QQ group by providing group ID and file ID, with optional file type for precise removal.

Instructions

Delete group file

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
busidNoFile type
file_idYesFile ID
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?

With no annotations, the description carries full responsibility for behavioral disclosure. 'Delete group file' only states the action; it does not disclose whether the deletion is permanent, requires special permissions, has side effects, or returns anything. This is insufficient for a destructive operation.

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, front-loaded sentence with no redundant words. It is appropriately concise, though it could benefit from a bit more elaboration without sacrificing brevity. The structure is clean and easily parsed.

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 simple delete tool with no annotations, no output schema, and only 3 parameters, the description omits important operational context: prerequisites (e.g., need to have the file ID), whether the delete is permanent, and any permission requirements. The provided information is not enough for an agent to invoke the tool correctly in a real workflow.

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% – each parameter has a description ('File ID', 'Group ID', 'File type'). The tool description adds no extra meaning beyond the schema, so it does not enhance parameter understanding. Baseline 3 is appropriate since the schema is complete.

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 states a specific verb ('Delete') and resource ('group file'), which clearly identifies the action. It is not a tautology and distinguishes from sibling tools like upload_group_file or get_group_file_url, though it lacks any detail about scope or special conditions.

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 on when to use this tool versus alternatives. It does not mention that the file_id must be obtained from list/get operations first, nor any prerequisites like admin permissions. The absence of any usage context leaves the agent to guess the appropriate invocation flow.

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