Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
readOnlyHint=true already establishes the safety profile, and the schema's limit description already states 'newest first,' so the ordering claim largely repeats structured data. Nothing is said about pagination, retention window, or what an audit entry contains, leaving little added behavioral context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.