Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries full burden. It states it returns public reviews with specific fields, but does not disclose ordering, pagination (only limit parameter), or behavior when both slugs are provided. It implies both daycare_slug and program_slug are optional, but does not clarify if one is required or how they interact.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.