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

With no annotations, the description carries the full disclosure burden. It usefully reveals that results are sorted by rating descending and lists the output fields, but it does not mention pagination, filtering behavior, or whether results are limited to a particular scope. This is partial but not comprehensive.

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 a single focused sentence that front-loads the core purpose and then efficiently adds sort order and return fields. There is no filler or redundancy.

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?

For a tool with four parameters, no annotations, and no output schema, the description leaves important gaps: filter parameter behavior, pagination, and how this tool differs from search_novels. It states what is returned but not enough contextual information for reliable selection and 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?

Schema description coverage is only 25%, with limit already documented in the schema. The description adds no meaning for tag, genre, or status parameters, nor does it explain their filtering effects or allowed values. Low schema coverage required the description to compensate, and it did not.

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 a specific action (列出) and resource (站内作品), and lists the returned fields: title, intro, chapter count, word count, and link. However, it does not explicitly distinguish itself from search_novels or get_novel, so sibling differentiation is left to inference.

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?

There is no guidance on when to use this tool versus alternatives such as search_novels for keyword-based lookup or get_novel for a single work. The description implies a general listing use case but provides no exclusions or routing hints.

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