Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden. 'List' clearly implies a read-only operation, which is a key behavioral trait. However, it does not disclose additional relevant behaviors such as authentication requirements, behavior when no snapshots exist, or whether the response is paginated. It meets the minimum but lacks depth.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.