What problem does it solve? Designing scalable, secure, and cost-effective AWS infrastructure requires deep expertise across dozens of services, and mistakes lead to overspending, security gaps, or architectures that cannot scale with growth. ## Core Features & Use Cases - Architecture Pattern Design: Provides proven patterns for serverless web apps, event-driven microservices, three-tier applications, real-time data processing, GraphQL backends, and multi-region deployments. - Infrastructure as Code Generation: Produces CloudFormation, CDK, and Terraform templates ready for deployment. - Cost & Security Optimization: Delivers cost estimates, right-sizing recommendations, and security hardening checklists aligned with the AWS Well-Architected Framework. - Use Case: A startup founder needs a backend for a mobile app expecting 100k users. The skill recommends a Lambda + API Gateway + DynamoDB + Cognito stack with a monthly cost estimate and a phased scaling roadmap. ## Quick Start Design a serverless API backend for a mobile app with 100k users using Lambda, API Gateway, and DynamoDB with a cost estimate.