Monitoring Expert

This is a comprehensive observability toolkit that covers Prometheus, Grafana, logging, and distributed tracing with actual production-ready configs. You get Docker Compose setups, realistic alert rules for things like high error rates and memory exhaustion, and PromQL queries that go beyond basic examples. The alert definitions are smart, using appropriate thresholds and time windows rather than triggering on every blip. It covers the three pillars of observability (metrics, logs, traces) plus monitoring methodologies like RED and USE that actually matter when you're debugging at 2am. The Kubernetes service discovery config alone saves hours of fumbling through documentation. If you're setting up monitoring from scratch or improving existing observability, this gives you patterns that work rather than toy examples.

skills.sh installs: 186
GitHub stars: 44
last updated: Aug 21, 2026

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Install

$ npx -y skills add personamanagmentlayer/pcl --skill monitoring-expert --agent claude-code

Installs into .claude/skills of the current project.

Files

Monitoring Expert

Expert guidance for monitoring, observability, and alerting using Prometheus, Grafana, logging systems, and distributed tracing.

Core Concepts

The Three Pillars of Observability

Metrics - Numerical measurements over time (Prometheus)
Logs - Discrete events (ELK, Loki)
Traces - Request flow through distributed systems (Jaeger, Tempo)

Monitoring Fundamentals

Golden Signals (Latency, Traffic, Errors, Saturation)
RED Method (Rate, Errors, Duration)
USE Method (Utilization, Saturation, Errors)
Service Level Indicators (SLIs)
Service Level Objectives (SLOs)
Service Level Agreements (SLAs)

Key Components

Metric collection (exporters, agents)
Time-series database
Visualization (dashboards)
Alerting (rules, receivers)
Log aggregation
Distributed tracing

Alertmanager

Configuration

# alertmanager.yml
global:
  resolve_timeout: 5m
  slack_api_url: 'https://hooks.slack.com/services/YOUR/WEBHOOK/URL'

route:
  receiver: 'default'
  group_by: ['alertname', 'cluster', 'service']
  group_wait: 10s
  group_interval: 5m
  repeat_interval: 4h

SKILL.md on GitHub