Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The description states 'Creates a new, empty notebook file', indicating a write operation. Since no annotations are provided, the description carries the full burden. It implies the file is newly created and initially empty, but omits details like whether it overwrites an existing file, what the default kernel or metadata is, or what the return value is. It is accurate but lacks depth.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.