Worked on the tgstation repository, focusing on enhancing the reliability of the Crafting System within a game development context. Addressed a critical bug where crafting would fail if a material stack was depleted mid-process, ensuring that the correct material list is maintained even when the stack is modified or deleted. This fix, implemented using DM and leveraging strong bug fixing skills, resolved failures for recipes requiring exact material quantities. The solution improved consistency in crafting outcomes and contributed to a smoother player experience by reducing edge-case errors and potential support issues related to crafting failures in the game’s core systems.