Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false, and openWorldHint=true, so the agent knows this is a safe, repeatable read. The description adds little beyond confirming single-workflow retrieval; it does not mention authentication requirements (beyond the api_key param), rate limits, or error behavior for invalid IDs.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.