Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is covered. The description adds useful behavioral context by clarifying that the catalog is served live via OpenAlex while corpus counts come from local D1, and it mentions the last refresh timestamp. This helps the agent understand data freshness and source boundaries.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.