Diagnoses GKE HorizontalPodAutoscaler (HPA) failures — metrics showing as <unknown>, FailedGetResourceMetric / FailedGetScale / FailedComputeMetricsReplicas events, missing Pod resource requests, custom/external metrics-pipeline breakage (FailedGetExternalMetric / FailedGetCustomMetric, unavailable metrics adapter, control-plane firewall blocking the adapter), HPA that won't scale up or down…
Install
npx skills add google/skills --skill gke-workload-scaling-troubleshootingnpx skills add google/skills --skill gke-workload-scaling-troubleshooting -a claude-code -gnpx skills add google/skills --skill gke-workload-scaling-troubleshooting -a codex -ggemini skills install https://github.com/google/skills.git --path skills/cloud/gke-workload-scaling-troubleshootinggh skill install google/skills gke-workload-scaling-troubleshootinggit clone --depth 1 https://github.com/google/skills /tmp/google__skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/google__skills/skills/cloud/gke-workload-scaling-troubleshooting ~/.claude/skills/gke-workload-scaling-troubleshooting # Claude Code
cp -R /tmp/google__skills/skills/cloud/gke-workload-scaling-troubleshooting ~/.agents/skills/gke-workload-scaling-troubleshooting # Codex, Cursor, Gemini CLI, Copilot, OpenCode