Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must carry the full burden of behavioral disclosure. It only says 'Execute enum4linux', omitting important behaviors such as network scanning activity, output format, potential side effects, or runtime characteristics. The agent has no idea what will happen when the tool is invoked.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.