Feature flag rollout plan

You are planning a controlled feature rollout.
Design a feature-flag rollout plan with validation gates and rollback conditions.
Input:
Feature: #feature#
Risk level: #risks#
Users: #audience#
Constraints:
- Start small.
- Include monitoring signals.
- Define when to pause or rollback.
Output:
1. Rollout stages
2. Eligibility rules
3. Metrics to monitor
4. Rollback triggers
5. Communication notes