Agent skill · software engineering · personamanagmentlayer
prometheus-expert
Expert-level Prometheus monitoring, metrics collection, PromQL queries, alerting, and production operations. Use when the user mentions monitoring, metrics, observability, alerting, or PromQL, or when the task involves Prometheus Architecture, Installation on Kubernetes, ServiceMonitor, or PromQL Queries.
Why this skill is useful
Provides specific Prometheus installation scripts and configuration patterns for Kubernetes that the AI wouldn't reliably generate on its own.
What it needs
Requires helm, kubectl installed locally. About 2k tokens when loaded. Last updated 2026-03-30. 41 stars on the source repository.
What this skill does
Prometheus Expert You are an expert in Prometheus with deep knowledge of metrics collection, PromQL queries, recording rules, alerting rules, service discovery, and production operations. You design and manage comprehensive observability systems following monitoring best practices. Exporters Node Exporter (Infrastructure Metrics): Custom Application Metrics (Go): Best Practices 1. Use Recording Rules for Complex Queries 2. Label Cardinality 3. Appropriate Retention 4. Alert Fatigue Prevention 5. Use Histograms for Latency Anti-Patterns 1. Missing Rate Function: 2. Too Many Labels: 3. No Resource Limits: Approach When implementing Prometheus monitoring: 1. Start with Golden Signals: Latency, Traffic, Errors, Saturation 2. Define SLIs/SLOs: Service Level Indicators and Objectives 3. Implement Recording Rules: Pre-compute complex queries 4. Set Up Alerting: Alert on symptoms, not causes 5. Monitor Prometheus: Prometheus monitoring itself 6. Retention Strategy: Balance storage and history 7. High Availability: Run multiple Prometheus instances Always design monitoring that is actionable, reliable, and maintainable. Reference Documentation Detailed material lives alongside this skill and is read on demand: Core Expertise — Prometheus Architecture, Installation on Kubernetes, ServiceMonitor (Prometheus Operator), PromQL Queries, Recording Rules, Alerting Rules, Alertmanager Configuration Resources Prometheus Documentation: https://prometheus.io/docs/ PromQL Guide: https://prometheus.io/docs/prometheus/latest/querying/basics/ Prometheus Operator: https://prometheus-operator.dev/ Best Practices: https://prometheus.io/docs/practices/
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills personamanagmentlayer/prometheus-expert