Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description must convey behavioral traits itself. It states it 'reads' state, implying a non-mutating operation, which is the key trait. It also introduces 'canonical state,' which adds context on the nature of the data. However, it doesn't disclose additional details like error handling or side effects, which is acceptable given the tool's simplicity.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.