Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already establish that this is a safe, read-only, idempotent operation. The description adds that the response contains complete trigger and action definitions, giving the agent useful expectations about payload richness. Error or authentication behavior is not mentioned, but the annotation coverage removes much of the burden.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.