Cloud platforms like AWS offer robust infrastructure, but ensuring application reliability remains the responsibility of developers, as highlighted by the shared responsibility model. AWS provides tools and best practices to enhance workload resilience, such as EC2's auto-scaling groups, EKS's redundancy features, and IaC tools like AWS CloudFormation to prevent accidental resource deletion. Reliability risks, including redundancy, scalability, and resource deletion, require proactive management, and tools like Gremlin can help by offering a structured approach to reliability testing. Gremlin's platform allows for the detection of AWS-specific reliability risks and provides a Well-Architected Cloud Test Suite to simulate failure conditions and ensure application stability. The platform integrates with observability tools for continuous monitoring and offers solutions to automate reliability management, thus bridging the reliability gap in AWS environments.