Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries full burden for behavioral disclosure, but it only states a read operation. It fails to mention any side effects, authentication needs, rate limits, or behavior details (e.g., whether the output is truncated, if it's a blocking call, etc.).
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.