Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true and destructiveHint=false, so the description adds context by mentioning 'live' data and an 'ML-DSA-65 signed receipt'. However, it does not explain what the signed receipt implies for the response, nor any rate limits, data sources, or error behavior, so it provides only partial transparency beyond 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.