tmall_close

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It only states 'close the browser', which is minimal. It does not disclose that this will terminate the session, potentially lose unsaved state, or that it may invalidate login credentials. An agent has no idea of the side effects or consequences of calling this 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 extremely short (one phrase), which is concise, but it is under-specified. It does not waste words, but it also fails to provide necessary context. It is more of a placeholder than a helpful description.

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 that closes the browser, the description is incomplete. It does not explain what happens to the session, whether the tool requires a logged-in state, or whether it is the only way to terminate the browser. Given that there is no output schema, the description should at least mention the expected effect or subsequent steps. This is inadequate for an agent to use safely.

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 schema has no parametersaint, and the description makes no mention of parameters. Since there are no parameters, the baseline for parameter semantics is 4 per the guidelines. The description does not need to add more, as there is nothing to define.

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 is '关闭浏览器' which translates to 'Close the browser'. This is a clear, concise statement of the tool's action. However, it is a direct translation of the tool name 'tmall_close' and lacks any additional context about what exactly is closed (the entire browser, a tab, a session? ). It does not differentiate from siblings like 'tmall_screenshot' or 'tmall_navigate' which also interact with the browser.

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 vs others. It does not mention that it should be used at the end of a session, or that it might log the user out. No alternatives or exclusions are given.

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