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 fully covered by structured data. The description adds nothing beyond that baseline — no indication of what fields are returned, error behavior for an invalid job_id, or whether the job must be in a particular state.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.