Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must carry the behavioral burden. It communicates that this is a read-only fetch of one project's details, and an output schema covers return shape. However, it does not mention authentication expectations, error behavior, or edge cases.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.