Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The description discloses the core behavior: ranking rows by a numeric column and returning either the highest or lowest. However, with no annotations available, it does not surface important behavioral details such as default limit behavior, tie handling, or what happens when a non-numeric column is supplied, leaving the description to carry the full transparency burden.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.