Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden for behavioral disclosure. '删除' (delete) implies a destructive mutation, but the description doesn't specify whether deletion is permanent, reversible, requires specific permissions, or what happens to associated resources. It also doesn't mention rate limits, authentication requirements, or error conditions.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.