During March 2026, this developer contributed to the ladybirdbrowser/ladybird repository by implementing an engine-level update in LibJS using C++ and JavaScript. The work focused on enhancing performance and reliability by ensuring that concise methods defined within object literals and classes are treated as non-constructors, thereby preventing their instantiation with the new operator. This change addressed potential misuse and improved code predictability and security for users relying on JavaScript object and class syntax. The feature was delivered in a single commit and was thoroughly validated through automated unit tests, demonstrating a methodical approach to JavaScript engine development and testing practices.