Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden. It implies a read-only operation via 'List', but it does not disclose any additional behavioral traits such as whether only running containers are shown (only 'running' is mentioned), pagination, authentication requirements, or return format. This is adequate for a simple read-only tool but not rich.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.