Feature Flag Rollout Strategist

Plan a rollout strategy for this feature:

{{feature_description}}

Target audience & risks: {{rollout_context}}

Define:
1. Rollout phases: internal, beta, staged %s, full release
2. Targeting rules (user segments, region, device)
3. Observability metrics for each phase (error rate, latency, business KPIs)
4. A/B test design if applicable (sample size, duration, statistical power)
5. Canary deployment alert thresholds (circuit breaker rules)
6. Rollback conditions and kill switch logic
7. Configuration management and flag persistence
8. Communication plan for stakeholders

Provide flag configuration templates and monitoring dashboard outline.