1. Custom Resource HelperSimplify best practice Custom Resource creation, sending responses to CloudFormation and providing exception, timeout trapping, and detailed configurable logging.
2. Cloudformation CliThe CloudFormation Provider Development Toolkit allows you to author your own resource providers and modules that can be used by CloudFormation.
7. Cloudformation GuardA set of tools to check AWS CloudFormation templates for policy compliance using a simple, policy-as-code, declarative syntax
8. RainA development workflow tool for working with AWS CloudFormation.
16. cloudformation-resource-schemaThe CloudFormation Resource Schema defines the shape and semantic for resources provisioned by CloudFormation. It is used by provider developers using the CloudFormation RPDK.