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 states only that it 'gets' data, implying a read operation, but does not disclose output format, time range, availability, rate limits, or any side effects. The brevity leaves the agent uninformed about what to expect beyond the action itself.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.