t is a lightweight Lua library for Roblox that provides runtime type‑checking utilities. It lets developers define primitive, composite (union, intersection, optional, tuple, etc.), array, and interface validators—including Roblox‑specific checks for Instances, Enums, and remote data—and optionally wrap functions so arguments are asserted automatically, helping catch type‑mismatch bugs and protect servers from malformed client input. This tool is aimed at Roblox developers building medium‑to‑large games or modules who want a concise way to enforce data contracts at runtime.