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 known. The description adds that the result includes full and video transcripts, which is useful return-value context. However, it does not elaborate on potential rate limits, auth requirements, or response structure beyond what annotations already convey. It is not misleading and adds some value, so a 3 is appropriate.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.