During February 2025, Caigen contributed to the App-vNext/Polly repository by refactoring the chaos injection configuration, focusing on improving resilience testing workflows. He enhanced the C# codebase by renaming the injection rate constant for clarity and adjusting rates for fault, latency, outcome, and behavior injections, making chaos scenarios more precise and maintainable. Caigen also updated documentation to clarify the sequential nature of injections and their impact on the resilience pipeline, supporting better onboarding and knowledge sharing. His work emphasized code readability and traceability, leveraging skills in code examples and documentation to empower engineers tuning fault-injection scenarios with greater confidence.