Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It states this is a read operation, implying it's non-destructive, but doesn't cover critical aspects like authentication requirements, rate limits, error handling, response format, or whether it's idempotent. The description adds minimal value beyond the basic operation type.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.