Worked on the datadog-static-analyzer repository to upgrade the dd-sds dependency, focusing on enhancing HTTP validation and secret rule processing while maintaining core analyzer functionality. The approach involved refactoring header handling from HashMap to BTreeMap in Rust, which improved determinism and performance in rule evaluation. API integration and dependency management were central to aligning secret rule conversions with the updated library API, supporting future SDS integrations. Custom HTTP validation and JWT expiration checkers were enhanced without introducing regressions. The work reduced maintenance costs and improved reliability, demonstrating a methodical approach to evolving a Rust-based static analysis tool for ongoing extensibility.