Churn Risk Cohort Scorer

Score churn risk for {{product_name}} user cohorts over {{prediction_window}}.

Cohort definitions:
- {{cohort_1}}: {{cohort_1_criteria}}
- {{cohort_2}}: {{cohort_2_criteria}}
- {{cohort_3}}: {{cohort_3_criteria}}

For each cohort:
1. Historical churn rate
2. Key churn indicators (feature usage, support tickets, payment status)
3. Risk score (high/medium/low) with confidence interval
4. Actionable retention levers (discount, feature unlock, personalization)
5. Estimated effect on churn if lever is applied
6. Recommended intervention with business case (LTV impact, cost, lift)

Prioritize by {{prioritization_metric}}.