Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It only says 'List all projects' without mentioning pagination behavior, response format, or any potential side effects. Although 'List' implies a read-only operation, the description does not confirm this or disclose any other traits beyond what the name already conveys.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.