Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
There are no annotations, so the description alone must convey behavioral traits. It states that the tool 'returns' data, implying a read-only operation, but it does not explicitly confirm non-destructiveness, describe side effects, or explain session-scoped behavior details. The added scope 'in this server session' provides some context but not enough depth.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.