Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already cover readOnlyHint, idempotentHint and destructiveHint=false, lowering the bar, yet the description adds useful state-dependent return detail: running returns stage and elapsed time, done returns dataset_id, verification, tables and certificate. It omits polling frequency or rate-limit behavior, which would complete the picture.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.