Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already provide readOnlyHint=true and destructiveHint=false, so the description is not required to disclose safety. However, it adds minimal behavior context beyond 'inspect' and does not explain what happens if project_root is omitted or the structure of the response.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.