Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description must carry the full burden. It discloses the non-destructive nature ('without saving'), which is positive. However, it does not mention whether the tool requires specific permissions, returned data format, side effects, or error behavior. With a zero-annotation tool, more transparency would be warranted, making 3 a middle score.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.