Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description bears full responsibility for behavioral disclosure. It only states 'Get ... Exclude battery data,' implying a read operation, but does not explicitly confirm non-destructiveness, authentication needs, or any side effects. The minimal text fails to fully inform an agent about expected behavior.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.