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. '清除' (clear) implies a destructive operation, but the description doesn't specify whether this is reversible, what permissions are required, whether it affects system performance, or what happens when memoryKey is omitted. The description mentions the optional parameter behavior but lacks critical behavioral context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.