Fault Injection is a crucial component of quality assurance and resilience testing in modern software development, particularly within Agile and CI/CD environments. It involves intentionally introducing faults to test the robustness and performance of systems under stress, which often leads to longer test durations and higher concurrency demands compared to traditional unit testing. Integrating Fault Injection into release automation requires strategic planning, as it can be done through regular scheduling, post-production deployment testing, or gating release candidates. Each strategy has its trade-offs, balancing the need for timely delivery with ensuring system safety and resilience. Regular execution of Fault Injection is recommended to proactively identify vulnerabilities caused by new deployments or external changes in infrastructure, while post-deployment testing allows for immediate risk assessment in environments with frequent releases. Gating releases with Fault Injection, although increasing latency, can be beneficial for organizations with extended QA cycles, ensuring that potential faults are addressed before reaching production. Testing during deployment, such as in Blue/Green or Canary deployments, can also provide insights into system resilience during transitional states, although it may not always reflect normal operating conditions.