Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden. It discloses that the tool returns a ranked list and is a convenience wrapper, which implies a read-only operation. However, it does not explicitly state that it has no side effects, nor does it mention pagination or other behavioral details that could be relevant.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.