During March 2026, the developer contributed to the NOAA-FIMS/FIMS repository by addressing a critical bug affecting JSON output formatting in the Rcpp distribution path. Using C++ and leveraging strong debugging skills, they identified and resolved a missing comma in a core header file, rcpp_distribution.hpp, which had caused invalid JSON outputs and downstream parsing errors. Their targeted fix stabilized the output format, ensuring reliable data consumption for dependent systems. The solution was validated through local testing and documented for maintainers, reflecting careful attention to code hygiene and minimal code surface impact. The work demonstrated focused problem-solving within a C++/Rcpp environment.