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. '重命名' implies a mutation operation, but the description doesn't state whether this requires specific permissions, whether the change is reversible, what validation occurs on the new name, or what happens to running instances. For a mutation tool with zero annotation coverage, this is a significant gap.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.