Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the burden and adds useful behavioral details: newest-first ordering, matured claims include text and salt, and optional limit up to 200. It does not disclose pagination or error behavior, but the core behavior is transparent enough for a read-only list operation.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.