Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the burden of disclosing behavioral traits. It states the tool checks port occupancy and reports the PID, implying a read-only inspection with no side effects. However, it does not disclose whether admin privileges are needed, whether it scans localhost only, or the format of the returned data. The description gives the core behavior but lacks edge-case context that annotations would typically cover.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.