tmall_type

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

无注释，描述承担全部责任。仅说明需登录，但未披露是否覆盖现有文本、是否触发输入事件、失败行为或副作用。对于一个写操作，行为透明度不足。

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?

单句描述，无冗余，关键信息（登录要求）前置，非常简洁。

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?

对于简单操作，模式已覆盖参数，但缺少行为细节（如覆盖、事件触发）和失败处理，在无注释情况下不够完整。

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?

模式覆盖率100%，参数已在模式中描述。描述未增加额外含义，仅提到登录要求，与参数无关，符合基线3。

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?

描述明确了动作（在输入框中填写文本）和资源（输入框），但与兄弟工具如 tmall_click 没有区分，未说明选择器需对应输入元素。虽然清晰，但缺乏区分。

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?

描述提到需要先登录，给出了前置条件，但未说明何时不使用此工具，也没有提及替代方案（如 tmall_click 用于点击而非输入）。没有排除性指导。

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