Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the burden of behavioral disclosure. 'Describe' implies a non-mutating, read-only operation, and the object clarifies that it reports a local-versus-cloud availability summary. However, it does not mention response format, dependencies, side effects, or why it should be used first, leaving some behavioral context implicit.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.