Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden. It indicates a destructive mutation ('Delete') but does not disclose side effects such as whether associated cels are removed, whether the operation is irreversible, or what happens if the layer does not exist. This is a significant gap for a destructive tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.