Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries full burden. It states '获取实际工时明细' (retrieve actual effort details), implying a read-only operation, but does not disclose behavioral traits such as pagination, sorting, rate limits, authentication needs, or what happens if parameters are invalid. For a tool with no annotations, this leaves significant gaps in understanding its behavior.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.