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 states the tool retrieves a file but doesn't disclose behavioral traits such as error handling (e.g., if file doesn't exist), permissions needed, rate limits, or output format. This leaves significant gaps for a tool that likely involves file system access.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.