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 the tool deletes a file, implying a destructive mutation, but doesn't specify if deletion is permanent, requires confirmation, affects other data, or has permission requirements. This is a significant gap for a destructive operation with zero annotation coverage.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.