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- Defined block contracts for each step (inputs/outputs, errors).
- Queue or orchestrator available (e.g., job runner, workflows).
- Observability pipeline configured (logs, metrics, traces).
- List the customer journey or business objective (e.g., qualify lead → draft email → schedule call).
- Break into blocks with explicit contracts and timeouts.
- Define the flow graph: sequence, parallel branches, and decision nodes based on block outputs.
- Add retry/backoff policies per block and circuit-breakers on repeated failures.
- Implement idempotency keys for side-effecting blocks.
- Emit structured events at: start, success, failure, retry, and compensation.
- Create dashboards for latency, success rate, and drop-off by node.
- Run a dry-run on fixtures; then canary to a small cohort before full rollout.
- End-to-end happy path < N seconds and meets success threshold.
- Error rate and SLOs within limits during canary.
- Hot spots: analyze node-level p95 latency and queue depth.
- Flaky steps: lower temperature, add explicit checks, or increase determinism.
- Dead letters: implement replay with backoff and visibility timeouts.
- Design: 1–2 hours. Initial rollout: same day.
- Impact: accelerates repeatable workflows with measurable reliability.
