Spring Boot 4 observability with Actuator, Micrometer, and OpenTelemetry. Use when configuring health indicators, custom metrics, distributed tracing, production endpoint exposure, or Kubernetes/Cloud Run probes. Covers Actuator security, Micrometer Timer/Counter/Gauge patterns, and OpenTelemetry span customization.
View on GitHubplugins/spring-boot/skills/spring-boot-observability/SKILL.md
January 23, 2026
Select agents to install to:
npx add-skill https://github.com/joaquimscosta/arkhe-claude-plugins/blob/main/plugins/spring-boot/skills/spring-boot-observability/SKILL.md -a claude-code --skill spring-boot-observabilityInstallation paths:
.claude/skills/spring-boot-observability/# Spring Boot Observability Production observability with Actuator endpoints, Micrometer metrics, and OpenTelemetry tracing. ## Core Components | Component | Purpose | |-----------|---------| | **Actuator** | Health checks, info, metrics exposure, operational endpoints | | **Micrometer** | Metrics abstraction (Timer, Counter, Gauge, DistributionSummary) | | **OpenTelemetry** | Distributed tracing (default in Spring Boot 4) | ## Core Workflow 1. **Add starters** → `actuator`, `micrometer-registry-*`, `opentelemetry` 2. **Configure endpoint exposure** → Secure sensitive endpoints 3. **Define health groups** → Separate liveness from readiness 4. **Add custom metrics** → Business-specific measurements 5. **Configure tracing** → Sampling, propagation, export ## Quick Patterns See [EXAMPLES.md](EXAMPLES.md) for complete working examples including: - **Production Actuator Configuration** with health groups and Kubernetes probes - **Custom Health Indicator** with latency monitoring (Java + Kotlin) - **Custom Micrometer Metrics** with Counter, Timer, and Gauge patterns - **OpenTelemetry Span Customization** with Observation API - **OpenTelemetry Configuration** for OTLP export - **Actuator Endpoint Access Control** (Boot 4) ## Spring Boot 4 Specifics - **OpenTelemetry** is the default tracer (replaces Brave) - **Health Indicator** imports from `org.springframework.boot.health.contributor.*` - **Endpoint Access Control** with `access: none/unrestricted/read-only` ## Detailed References - **Examples**: See [EXAMPLES.md](EXAMPLES.md) for complete working code examples - **Troubleshooting**: See [TROUBLESHOOTING.md](TROUBLESHOOTING.md) for common issues and Boot 4 migration - **Actuator Endpoints**: See [references/ACTUATOR.md](references/ACTUATOR.md) for endpoint configuration, security, custom endpoints - **Micrometer Metrics**: See [references/METRICS.md](references/METRICS.md) for Timer, Counter, Gauge, DistributionSummary patterns - **Distributed Tracing**: See [