Worked on the swiftlang/sourcekit-lsp repository to address a critical issue in the BuildSystemManager’s dependency analysis. Focused on algorithm optimization and dependency analysis using Swift, the developer corrected a bug that previously caused exponential blowup during dependency resolution. By updating the depth check to use each dependency’s recorded depth, the solution improved both build reliability and performance, especially for large dependency graphs. This work required careful debugging and a deep understanding of build systems, resulting in a more efficient and stable build process. The fix was tracked through Git, demonstrating collaborative development and attention to traceability in complex codebases.