Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, covering the safety profile. The description adds that the tool reads progress, output metadata, and adopted artifacts, which is useful context beyond the annotations. However, it does not disclose any additional behavioral details like pagination, rate limits, or what 'adopted artifacts' entails, so it adds only modest value per the lower bar set by the annotations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.