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 key behavioral traits: the search is based on title, it's not paginated, and it returns all matches. This covers scope and output behavior but misses details like rate limits, authentication needs, or error handling. The description doesn't contradict annotations (none exist), but it's moderately informative.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.