Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must disclose behavioral traits, but it only states 'Get column(s)'. It fails to mention that it is likely a read-only operation, does not describe side effects, and does not specify behavior when the column parameter is omitted.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.