Data Quality
Critical fields populated, recent, and standardised for the median customer — not the best account
Usable Volume
Enough history to avoid a cold-start cliff. The feature needs a bootstrap plan for new accounts
Access & Privacy
Data movement rights are verified. DPAs, residency rules, and contractual limits are checked before build
Evaluation & Monitoring
Output quality is defined. Failures can be logged, reviewed, and corrected — not just tracked by click count