prometheus

Query monitoring metrics, check alerts, and verify target health via the Prometheus HTTP API. API and PromQL syntax are referenced through Context7 MCP; only environment-specific rules are documented here.

Setup

Configure your Prometheus endpoint before using this skill:

Variable	Description	Required
`PROMETHEUS_URL`	Your Prometheus server URL (e.g. `http://prometheus.internal:9090`)	Yes

Common metric prefixes to monitor:

node_* — Node Exporter (host metrics: CPU, memory, disk, network)
kube_* — kube-state-metrics (K8s object state: deployments, pods, nodes)
container_* — cAdvisor (container resource usage)
apiserver_* — K8s API Server metrics
kubelet_* — Kubelet metrics
prometheus_* — Prometheus self-monitoring