Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
The complexity is low (zero params, no nested objects), and the description names the broad return domains, which is partially adequate given there is no output schema. But it does not communicate the return shape, units, or how this aggregates/disitnguishes from the many sibling probes that cover the same domains (get_disk_usage, get_networ_connections, list_processes), leaving selection ambiguity unresolved.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.