The runtime this node speaks (e.g. "smolvm"). The control plane resolves a driver from this name; smolvm_address is that runtime's endpoint. Defaults to "smolvm" so a node that doesn't report a runtime (the only runtime today) is handled transparently.

The runtime endpoint (HTTP address) on this node.

Real CPU usage as fractional CPUs (e.g., 2.5 = 2.5 CPUs worth of load). Reported by the node from hypervisor/process stats. Separate from available_cpus (which is allocation-based bookkeeping).

Real disk space consumed by VM overlay/storage files in GB. Reported from filesystem stat of VM disk images. Separate from available_disk_gb (which reflects the entire host filesystem).

Real memory usage in MB. Reported by the node from RSS of VM processes. Separate from available_memory_mb (which is allocation-based bookkeeping).