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astral-bridge

by oines

qq_download_media

Downloads QQ images or file attachments to local cache and returns the file path.

Instructions

Download a stored QQ image/file attachment to the local media cache and return its path.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
attachment_idNo
message_idNo
attachment_indexNo
Behavior2/5

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

Without annotations, the description should fully disclose behavioral traits. It mentions downloading to local cache and returning a path, but does not specify side effects (e.g., overwrites), permission needs, or what happens if the attachment does not exist.

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, front-loaded sentence with no redundant words. Every part contributes to stating the tool's core action and result, which is ideal for conciseness.

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?

Given the absence of annotations, output schema, and parameter descriptions, the description is too sparse. It does not cover prerequisites, return value format, or parameter semantics, making it incomplete for secure or correct use.

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?

With 0% schema description coverage, the description was expected to explain the three parameters (attachment_id, message_id, attachment_index). It fails to do so, leaving their roles and constraints entirely undocumented.

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 verb 'download' and the resource 'stored QQ image/file attachment', indicating its function. However, it does not explicitly differentiate from sibling tools like qq_send_group_file or qq_get_message, which might also involve attachments.

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 provides no guidance on when to use this tool versus alternatives. It lacks context about prerequisites, such as needing a message_id, or situations where other tools would be more appropriate.

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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