Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It only says 'search' and gives no information about whether the operation is read-only, what side effects occur (if any), what the response format is, or any limits (e.g., maximum top_k). This is insufficient for an agent to understand the tool's safety or behavior.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.