Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden. It states the basic behavior (retrieves all documentation) but does not disclose return format, size, pagination, or any side effects. While it is a read-only operation, that is not explicitly stated, and no additional context is given.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.