Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full behavioral burden. It usefully discloses what is inspected and that it produces structural suggestions based on thresholds, which is behavior beyond the name. However, it does not state that the operation is read-only (no mutation of the KB), whether thresholds are fixed defaults, whether the run is expensive/slow on large KBs, or whether it has any side effects such as caching.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.