Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is established. The description adds meaningful behavioral context beyond that: the brief is weekly and Mako-bylined, every claim traces to a Jawz tool read from its week, the default is the latest edition, and list_only:true suppresses content and returns only edition metadata.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.