Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the behavioral burden. It implies a read-only operation via the word 'view/查看', which is helpful, and lists the returned data points. However, it doesn't disclose what happens if no active session exists or other edge-case behavior, leaving some gaps for a zero-annotation tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.