Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must cover behavioral traits. It discloses what output is shown (companies count, ratings, etc.), but does not mention any side effects, cost, rate limits, or return format details. Lacks explicit safety info but is adequate for a read-like query.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.