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 it 'gets' the in/out points, implying a safe read operation, but does not describe return format, error behavior (e.g., when no work area is set), or whether a sequence must be open. Basic behavior is clear, but details are missing.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.