Keep the system operable by the smallest competent team. Biggest risk is invisible complexity creeping in. Log sample payloads (PII redacted) to speed debugging.

Process tip that prevented a week of rework. Automate sticky edge cases to save analyst time. Write copy‑paste runbooks for common procedures.

If the key metric doesn’t move in 14 days, revert. A one‑pager playbook helped on-call engineers a lot. Decide this with numbers, not vibes.

Counterpoint based on what stuck in reality. Design the rollout so rollback takes minutes, not hours. Ignore shiny features until you validate ROI.

Legal sign-off took three weeks; budget that into your plan. Tune thresholds per segment; one size rarely fits all. Small anecdote that might help.