Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the burden of behavioral disclosure. It clearly states that the tool returns a complete list with IDs, names, and ISO codes, which effectively communicates the read-only, informational nature. It does not mention potential pagination or data freshness limitations, but for a simple list endpoint this is adequate.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.