golang-observability

golang-observability is an agent skill from the samber cc-skills-golang collection for the always-on signals a Go service needs in production. It covers structured logging with slog, Prometheus metrics, OpenTelemetry distributed tracing, profiling, and real user monitoring. The skill is built on the idea that a system is observable only if its internal state can be understood from its outputs, and that each of the five signals answers a different question. Its persona is a Go observability engineer who instruments code proactively and does not consider a feature done until it can be observed. The skill has three modes. Coding and instrumentation is the default: it adds metrics, opens and closes spans, sets up structured logging and wires profiling toggles, following an instrumentation guide in order. Review mode checks a pull request's instrumentation, confirming that metrics are declared, spans are opened and closed, and log fields are consistent. Audit mode looks across a codebase with up to five parallel sub-agents, one for each signal, to check coverage. The skill notes that observability libraries such as the Prometheus client and the OpenTelemetry SDK change, so the agent should check their official documentation for current signatures. It is useful for teams that run Go services and want the basics in place before an incident. It is listed on skills.sh, where the page shows install counts and GitHub stars for the collection. Its Gen Agent Trust Hub and Snyk audits pass, and Socket shows a warning. Install it with npx skills add https://github.com/samber/cc-skills-golang --skill golang-observability.…