Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden. It mentions 'if readable', indicating potential failure scenarios, but does not disclose other behavioral traits such as side effects, permissions required, rate limits, or whether it is a safe read operation. The minimal disclosure leaves significant gaps.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.