Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The annotations already declare readOnlyHint, openWorldHint, idempotentHint, and destructiveHint=false, covering safety and behavior. The description adds that it returns 'cached stats,' implying possible staleness, but does not elaborate on other behaviors like call limits or data freshness guarantees.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.