What problem does it solve? Deploying to production without a repeatable process leads to missed security checks, undetected regressions, and no way to recover when a release breaks. This Skill provides a structured launch workflow so every deployment is reversible, observable, and incremental. ## Core Features & Use Cases - Pre-Launch Checklists: Covers code quality, security, performance, accessibility, infrastructure, and documentation gates before any deploy. - Feature Flags and Staged Rollouts: Defines a flag lifecycle and a canary sequence (5% → 25% → 50% → 100%) with metric thresholds for advancing, holding, or rolling back. - Monitoring and Rollback Planning: Specifies what to monitor (error rates, latency, Core Web Vitals), post-launch verification steps, and a rollback plan template with trigger conditions. - Use Case: Before releasing a new feature, run the pre-launch checklist, deploy behind a feature flag, canary to 5% of users, and use the decision thresholds table to decide whether to advance or roll back. ## Quick Start Help me prepare a production launch plan with a pre-launch checklist, staged rollout, and rollback strategy for my upcoming feature release.