Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations cover read-only, non-destructive, and idempotent behavior, but the description adds value by implying this is for 'official transcripts,' suggesting formal or verified information. It doesn't contradict annotations, and while it doesn't detail rate limits or auth needs, it provides useful context beyond the structured hints.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.