{"id":"labring-metrics-server","name":"metrics-server","af_score":34.8,"security_score":56.2,"reliability_score":43.8,"what_it_does":"metrics-server is a Kubernetes add-on that aggregates resource metrics (CPU/memory) from kubelets and serves them to the Kubernetes API for components like kubectl top and Horizontal Pod Autoscaler (HPA).","best_when":"You need lightweight CPU/memory metrics in-cluster for kubectl top and HPA, and you’re not already running a full metrics pipeline.","avoid_when":"You require high-cardinality/long-retention metrics, custom metrics types, or non-CPU/memory metrics (use Prometheus Adapter or other monitoring stack).","last_evaluated":"2026-04-04T21:25:55.318671+00:00","has_mcp":false,"has_api":false,"auth_methods":[],"has_free_tier":false,"known_gotchas":["Kubernetes add-ons often depend on cluster permissions (RBAC), TLS/kubelet reachability, and correct APIService registration; failures may appear as Kubernetes events/logs rather than agent-friendly HTTP error responses.","Because this is not a typical standalone API service, rate limits and auth semantics are governed by Kubernetes components and kubelet connectivity rather than by a documented public API."],"error_quality":0.0}