Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must carry the full burden of behavioral disclosure. It only indicates a read operation ('Get data source info'), but offers no details about potential side effects, authentication needs, or rate limits. The brevity leaves agents guessing about the tool's behavior beyond the obvious read.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.