Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Beyond the annotations, the description discloses Subscriber requirements, the role "cook" eligibility constraint, the regeneration behavior for prep days and prep meals, and the returned entry_id and locked value. The mutation and idempotent behavior are consistent with readOnlyHint=false and idempotentHint=true.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.