Andrew Jaguars enhanced risk assessment and operational reliability across three repositories, including virattt/ai-hedge-fund, browser-use/browser-use, and Crosstalk-Solutions/project-nomad. He improved the Sortino ratio calculation in Python to use target downside deviation, ensuring risk metrics accurately reflect zero-return periods. In TypeScript, he resolved a TypeError by removing an incorrect await from a synchronous get_llm call, streamlining asynchronous flows. For the admin UI, Andrew prioritized real block devices over tmpfs in storage displays and implemented a fallback for unreadable mount tables using shell scripting. His work demonstrated depth in full stack development, risk modeling, and resilient infrastructure logic.