The Super Metric Builder.
A super metric is how the guide turns a KPI into something VCF Operations computes. Pick a function, a metric and a scope, and take away the exact syntax, the same depth and breadth patterns behind the cluster KPI.
Compose
The building blocks the book shows: a function over a population, a metric key, how deep to reach, and an optional threshold.
Levels down from where the metric is assigned to the object read. Group to VM is depth 3.
The super metric
Straight quotes, explicit where clause: paste it into a VCF Operations super metric.
max( ${adaptertype=VMWARE, objecttype=VirtualMachine, metric=cpu|readyPct, depth=3} )
The single worst (highest) CPU Ready (%) among all VMs in the population. This is the depth of the problem, the exact pattern the cluster KPI uses for its "worst VM" signals.
VCF Operations 9.1 documentation, each page verified. A super metric can loop across children with avg / sum / max / min / count; it cannot iterate or look back in time, so it computes the present value only.