Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint and openWorldHint, so the safety profile is covered. The description adds the 100-token batch constraint and the default wallet_type, but does not describe what 'statistics' actually contains, rate limits, or behavior on invalid mints.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.