Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already cover the safety profile (readOnlyHint=true, idempotentHint=true), and the description adds that output is 'written summary...with links' and the time window Monday-Sunday. It does not disclose pagination, rate limits, or return format details beyond what the output schema likely provides.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.