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

Annotations are absent, so the description carries the full behavioral burden, but it reads like a label rather than a behavioral specification. It implies a read-only bulk export and states formats and scope, yet says nothing about what the caller receives (file path, URL, or content), potential side effects, or cost for large works.

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 compact phrase with the verb and formats front-loaded; every token earns its place. It is arguably too terse — a fragment rather than a sentence — which contributes to the missing usage and behavioral guidance.

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?

With no output schema and no annotations, the description needs to explain what the tool returns and how it differs from export_kd, and it does neither. For a 2-parameter export tool, what the agent receives is essential context, and that gap makes the definition incomplete.

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 100%, so the baseline is 3 even though the description adds no parameter-level detail. The mention of 'Markdown / 纯文本' does echo the format parameter's md/txt values, giving slight reinforcement, but the schema already documents both parameters adequately.

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 names a specific verb (导出/export), the resource (全文/full work), and delineates scope (设定 + 全部章节 — settings plus all chapters) and formats (Markdown / 纯文本). It is clear about what the tool produces, though it never explicitly distinguishes itself from the sibling export_kd.

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 given on when to choose this tool over alternatives. With export_kd present as a sibling export tool, the absence of any differentiation or selection criteria leaves the agent to guess. There is also no advice on when to pick 'md' versus 'txt'.

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