Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations and a minimal description, the tool's behavior is largely opaque. 'Pre-flight screening' implies a read-only check with no destructive actions, but this is not stated. There is no mention of side effects, whether it modifies files, what it returns, or any permissions or prerequisites needed. The description does not contradict annotations (since none exist), but it also discloses almost nothing about the tool's actual behavior.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.