Metrics
- Lead time, MTTR, change failure rate, deploy frequency.
- Stage timing (queue, build, test, deploy); flake rate; retry counts.
Tracing & logs
- Trace pipeline executions with build SHA, branch, trigger source; annotate stage spans.
- Structured logs with status, duration, infra node; keep artifacts linked.
Guardrails
- Quality gates (tests, lint, security scans) per PR; fail fast on criticals.
- Retry budget per job to avoid infinite flake loops.
- Rollback hooks + auto-stop on repeated failures.
Ops
- Parallelize where safe; cache dependencies; pin tool versions.
- Alert on SLA breaches (queue time, total duration) and rising flake rates.
- Keep dashboards per repo/team; trend regressions release to release.
