Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The readOnlyHint annotation already establishes this is a safe read tool, and the description adds the concrete return payload (names, protein %, W strength, hydration ranges, types). It does not disclose search semantics such as whether query and tag combine, whether results are filtered by default, or whether there is any result limit or pagination. With annotations covering safety, this is adequate but not rich.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.