Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must carry the burden of behavioral disclosure. The word 'Describe' implies a read-only operation, and 'by name' indicates a lookup-by-name behavior, which adds some value. However, it does not disclose potential errors for missing tables, the effect of having both optional parameters set, or any permission or performance characteristics. It partially misses the opportunity to clarify behavior beyond the obvious.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.