Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden. It discloses a critical behavioral trait: the tool does not write pack state, indicating a non-destructive operation. However, it lacks details on other behaviors like validation, return format, or side effects, which are important for a planning tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.