Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden but discloses almost nothing beyond the basic action. It doesn't mention whether this is a read-only operation, what permissions are needed, how results are returned (format, pagination), rate limits, or error conditions. 'Search' implies read-only, but this isn't explicitly stated.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.