discover_douban_media

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It only mentions filter conditions and page number, and states a return list. It does not explain read-only safety, pagination behavior, rate limits, or error handling, which is a significant gap for a discovery tool.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is very concise with a one-sentence summary followed by Args/Returns. There is no fluff, and the structure is clear, though it is almost too terse to be useful.

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

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

This is a complex discovery tool with a nested filters object containing five sub-parameters, no output schema, and no annotations. The description is severely incomplete, lacking filter semantics, pagination details, response structure, and differentiation from the sibling discover_tmdb_media tool. It does not adequately inform an agent for correct invocation.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The description adds no meaning beyond the input schema. It simply restates 'filters' as '过滤条件' and 'page' as '页码', without explaining the nested object structure or available fields. The schema itself contains detailed descriptions, but the tool description contributes nothing.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool explores Douban movies/TV shows based on filter conditions, which is a specific verb+resource combination. It does not explicitly distinguish from sibling tools like discover_tmdb_media, but the Douban scope and tool name provide differentiation.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

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 such as search_media_or_person or discover_tmdb_media. There are no exclusions or contextual recommendations, leaving the agent to guess usage.

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