AWS CDK Best Practices: The Complete Guide [2026]

Most CDK tutorials teach you how to deploy your first Lambda function. Few prepare you for what happens when your team grows to 10 engineers, your stacks multiply to 50, and a refactoring mistake deletes your production database. This guide covers the AWS CDK best practices that prevent those disasters. By the end, you'll understand AWS's official best practice categories, know how to structure projects with Projen (yes, it's a necessity, not optional), test your infrastructure code, implement s