Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of explaining behavior. It states the operation is a listing, which implies read-only, but does not disclose whether the list includes deleted drafts, the return format, or any scoping limitations. The phrase 'retweet/undo drafts' adds some context but lacks behavioral detail.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.