Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare read-only, idempotent, non-destructive behavior, and the description adds substantial context: return shape (overall, 7-stage checklist, error_kind), next_action semantics, ~10s poll interval, onboarding completion side effect, and tenant-scoped 404 behavior. This goes well beyond the structured annotations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.