Over a three-month period, contributed to OriginProtocol/origin-dollar by implementing a vault yield management feature in Solidity, introducing rate-controlled rebasing and drip-based yield distribution to enhance protocol security and user experience. Enhanced the crytic/slither repository by improving call graph visualization using Graphviz, configuring graph orientation and node shapes to clarify complex function relationships for security analysis. Addressed documentation accuracy in foundry-rs/book by correcting configuration option names in Markdown, reducing user misconfiguration risk. Demonstrated proficiency in backend development, static analysis, and DeFi protocol mechanics, focusing on maintainability, security, and clear communication through code, documentation, and workflow improvements across multiple repositories.