Individual skill
spring-observability
Add and review observability in Spring Boot 3/4 apps: Actuator exposure and health probes, Micrometer metrics, Observation API, OpenTelemetry tracing and OTLP/Prometheus export, structured logging with correlation ids, and safe use of heapdump/threaddump. Use when instrumenting, monitoring or troubleshooting a Spring Boot service.
skills/spring-observability/SKILL.md
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- Last checked
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- License
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SKILL.mdcore · 3,743 bytesreferences/actuator.mddoc · 1,906 bytesreferences/dumps-and-diagnostics.mddoc · 1,482 bytesreferences/logging.mddoc · 1,764 bytesreferences/metrics.mddoc · 2,052 bytesreferences/tracing-observation.mddoc · 2,792 bytes
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# Spring Boot observability
Covers Actuator, Micrometer, the Observation API, tracing, and logging. Details in `references/`. For JDK-level diagnosis (thread dumps, JFR, heap analysis) see the `java-diagnostics` skill; for securing endpoints see `spring-security`.
## Safety rules
- Never read or print secrets (`.env`, credentials, tokens) while inspecting configuration or `/actuator/env`.
- Never expose `heapdump` or `threaddump` over public HTTP. The only exception is a temporary, user-consented window with authentication, TLS and network restriction, removed afterwards (same policy in `java-diagnostics`).
- Never expose `env`, `configprops`, `loggers`, or `shutdown` in production without authentication and network restrictions.
- Pin dependency versions via the Boot BOM; do not add explicit versions for Boot-managed artifacts.
## Detect first
Check the Boot version (3.x or 4.x) and what is already present (`spring-boot-starter-actuator`, `micrometer-registry-*`, tracing/OTel dependencies, `logback-spring.xml`). Boot 4 modularized observability (`spring-boot-micrometer-*`, `spring-boot-opentelemetry`) but starters still bring them in.