Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden of behavioral disclosure. It only says 'wait for the current project deployment to complete' without explaining whether this involves polling, blocking, timeouts, error handling, or what the return value will be. The existence of an output schema is not acknowledged, leaving the actual behavior opaque.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.