Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden. It states a read operation ('List all'), but fails to disclose the dry_run parameter's effect on behavior, or any additional behavioral traits like pagination or return format. The dry_run parameter is a notable omission.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.