Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It only says 'List saved snapshots' and does not disclose what a snapshot is, where they are stored, whether the list is sorted, whether it includes metadata, or whether any side effects occur. The bilingual text is redundant and does not add behavioral context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.