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 states that the tool returns the highest-trained skills, but does not describe ordering (e.g., by skill points or level), whether the result is a list or detailed objects, pagination, or authentication requirements beyond 'logged-in character.' It also adds the interpretive claim about 'fly well' but doesn't explain how to interpret the data. More behavioral context (e.g., 'returns a sorted list of skill typeIDs and levels') is needed.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.