Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The description discloses behavioral traits beyond annotations: cost calculation, escrow charging, Russian language requirement, and return of task_id. No contradiction with annotations; it adds useful context not covered by readOnlyHint=false or openWorldHint=true.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.