Offline→online checklist
seed#craft#checklist#trap
Up: 60_Craft-MOC
⚠️ Before believing offline lift translates to value.
- [ ] Does the offline lift survive an A/B test?
- [ ] Is the offline metric a faithful proxy for business value?
- [ ] Same train/serve distribution, or has it drifted? (Concept drift in production)
- [ ] Did I split by user & time? (else the offline number is fiction — Leakage checklist)