Feature Flag Strategy
PRODesign and implement feature flag rollout strategies including canary releases, A/B testing, percentage rollouts, and lifecycle management for safe continuous delivery.
Example Usage
I’m launching a risky database query optimization that could impact latency. Design a feature flag rollout strategy with canary release starting at 0.1%, automated rollback triggers if error rate exceeds 1%, and a 2-week cleanup schedule. Include monitoring metrics and escalation thresholds.
Skill Prompt
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How to Use This Skill
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Suggested Customization
| Description | Default | Your Value |
|---|---|---|
| Unique identifier for the flag following naming convention | feature/new-checkout-flow | |
| Initial flag state before targeting rules (false = legacy behavior) | false | |
| Percentage of users receiving the feature (0-100) | 0 | |
| User cohort receiving feature (internal, beta, premium, geography) | all_users | |
| Environment where flag is active (dev, staging, prod) | production | |
| Auto-cleanup date for flag removal | 2025-12-31 |
- Copy the skill content above or download the skill package
- Paste into your AI assistant (Claude, ChatGPT, Gemini, Copilot)
- Describe your feature and deployment context
- Receive a complete rollout strategy with flag classification, rollout schedule, monitoring thresholds, and cleanup plan
Use Cases
- Planning a canary release for a risky backend change
- Designing A/B test configuration with proper statistical setup
- Managing feature flag lifecycle and technical debt
- Setting up automated rollback triggers
- Creating rollout strategies for database migrations
- Implementing permission-based feature gating
Research Sources
This skill was built using research from these authoritative sources:
- Feature Toggles (Feature Flags) - Martin Fowler Definitive classification of toggle types by longevity and dynamism with implementation patterns
- How GitHub Ships Code Faster with Feature Flags Real-world production practices at scale: deployment risk reduction and automated cleanup
- The 12 Commandments of Feature Flags 2025 Modern best practices including naming conventions and lifecycle management
- 7 Advanced Feature Flagging Best Practices Lifecycle management, progressive rollouts, and security controls
- Feature Flag Release Management Best Practices Percentage deployment, canary releases, and automated rollout strategies
- 11 Open-source Feature Flag Tools Comparison of Unleash, Flagsmith, FeatBit, Flipt, GrowthBook, PostHog
- Testing in Production with Feature Flags 90-day implementation plan, canary release progression, and rollback strategies
- Feature Flags and Rollouts Complete Guide Risk mitigation, use cases with real examples, and phased release patterns