GPU Observability with workload attribution. One OTLP agent per node ties hardware metrics (NVIDIA, AMD, Intel Gaudi) to the K8s pod or Slurm job burning the GPU.
A machine-checkable standard for AI-cluster chaos engineering: which fault injection tests which layer. Fidelity linter + spec schema + 20-experiment catalog. A pod kill is not an XID; tc/netem is not an InfiniBand flap.
