Prabhat focused on improving entry point detection in the carbon-language/carbon-lang repository, addressing a subtle but critical aspect of language correctness. Using C++ and applying principles of compiler design, Prabhat refined the logic so that only the top-level Run function in the Main package is recognized as the program entry point, eliminating ambiguity from similarly named functions in other namespaces or through C++ interop. This work included adding comprehensive regression tests to ensure robust behavior across contexts and to prevent future regressions. The changes enhanced code reliability, reduced startup failures, and improved the safety of cross-language interoperability in Carbon.