Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true and openWorldHint=true, so safety is covered. The description adds the batch ceiling (100) and chain/wallet-type constraints, but does not disclose cost, rate limits, or any behavior beyond what annotations plus schema already convey.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.