Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries full burden. It includes a warning about modification and briefly explains each flag (merge, cueonly, tracking). However, it lacks detail on side effects, auth requirements, or error states. The flag meanings are minimal.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.