During August 2025, Xal refactored the caching mechanism in the JuliaLang/Pkg.jl repository, focusing on how CacheFlags are parsed within the package management system. Instead of reading a raw UInt8 value, Xal implemented a direct parsing approach from the Julia process, which improved the clarity and robustness of cache flag interpretation. This change enhanced the reliability and maintainability of the caching subsystem, reducing the likelihood of edge-case failures. The work demonstrated a strong command of Julia, build systems, and package management, and addressed a nuanced aspect of system reliability through a targeted, well-scoped feature delivered in a single, cohesive commit.