Worked on enhancing the NREL-Sienna/PowerSystems.jl repository by expanding the public API to include the is_concave utility function, facilitating greater cross-module reuse and supporting downstream integration. The approach focused on incremental API design and careful management of module imports, ensuring that analytical utilities are more accessible to developers working within the Julia ecosystem. No major bugs were addressed during this period, with efforts concentrated on feature development and improving the developer experience. Demonstrated skills in software engineering and Julia, with an emphasis on maintainable code structure and traceable changes, laying groundwork for broader adoption of analytical tools in future modules.