Erik McCutchen enhanced the LLNL/Surfactant repository by implementing expanded Perl file type recognition and interpreter mapping, focusing on improving automated file-type detection and interpreter resolution. Using Python, he added support for Perl script and module extensions, specifically .pl and .pm, to the system’s mapping logic, and updated interpreter associations to include 'perl' for more accurate runtime identification. This work leveraged his skills in file type identification and scripting language support, enabling more precise scanning and classification of code. The feature addressed a targeted need for broader scripting language coverage, demonstrating a focused and well-scoped engineering contribution within the project.