watch.list

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

There are no annotations, so the description carries the burden of behavioral disclosure. It transparently states that the tool lists all watch items with their latest check time, and the verb 'list' implies a read-only operation. However, it does not mention pagination, ordering, limits, authorization requirements, or side-effect behavior beyond the implication of the name.

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 sentence with no filler. It front-loads the core action and the relevant output aspect, making it appropriately sized for the information it needs to convey.

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 zero-parameter listing tool with an output schema available, the description conveys the essential behavior and returned data sufficiently. It lacks sibling differentiation and usage notes, but the low complexity and presence of an output schema keep the remaining gap relatively small.

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 tool has zero parameters and 100% schema description coverage, so the baseline of 4 applies. There is no parameter information needed in the description because there is nothing for the agent to configure.

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 identifies the action ('列出' / list), the resource ('监控项' / watch items), and the key output field ('最新检查时间' / latest check time). However, it does not distinguish itself from sibling watch tools such as watch.jobs, watch.history, or watch.alerts, so it stops short of a 5.

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 usage guidance is provided. The description does not say when to choose this tool over alternatives, nor does it mention exclusions or conditions. Given the large watch.* sibling family, the agent is left to infer the appropriate context.

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