Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden for behavioral disclosure. It says '搜尋' (search), which implies read-only, but does not explicitly state that it makes no changes or disclose other behavioral traits like permission requirements, result limits, or whether it returns full records. The description adds only the context of 'Archival Memory' and a use case, which is insufficient for a safe and informed usage.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.