Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, openWorldHint=true, and idempotentHint=true, indicating safe, non-destructive operations. The description adds value by specifying data sources (CDP, UNCTAD STAT) and output structure (severity, location, source verification), enhancing transparency beyond annotations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.