Observability

Design and audit the signals a running system emits so failures are visible before users report them. This skill builds the standing pipeline - instrumentation, metrics, traces, structured logs, alert rules, SLOs, and dashboards-as-code - and audits a repo for the gaps that leave a service blind.

Target versions: see references/versions.md (verified per the receipt date in that file). Do not restate version numbers here.

When to use