tmall_click

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 the login prerequisite and does not disclose whether the click can cause navigation, submit events, require waiting for page load, or fail in certain page states.

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 short sentence with no filler, placing the action first and the prerequisite in parentheses. It is efficiently structured, though lean in content.

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 single-parameter click tool, the essential invocation details are present, but the absence of annotations and an output schema leaves side effects, return behavior, and expected page state undisclosed. It is minimally viable but has clear gaps.

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 input schema already describes 'selector' as a CSS selector with 100% coverage, so the baseline is 3. The description adds no parameter-specific meaning beyond the global login requirement.

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 states a clear action, '点击页面元素' (click page element), identifying a specific verb and resource. It is distinguishable from sibling tools like tmall_type and tmall_navigate, though no sibling is explicitly named.

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?

The description gives a clear prerequisite ('需要先登录' / login required first), which helps an agent avoid calling it outside an authenticated session. However, it offers no explicit guidance on when to use this tool instead of alternatives such as tmall_type or tmall_navigate.

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