Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden of behavioral disclosure. It indicates a read-only operation through the verb '获取' and specifies the return format as a list. However, it does not disclose potential authentication requirements, rate limits, or that it has no side effects beyond fetching data.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.