vue-tsc is Vue's official CLI wrapper around the TypeScript compiler (tsc), specifically tailored for Vue Single-File Components (SFCs). It streamlines the TypeScript checking and compilation process, understanding Vue's specific syntax and features within .vue files. This package offers enhanced type safety, improved developer experience, and a smoother integration between Vue and TypeScript projects by properly handling template type checking and more. It's essential for leveraging TypeScript in Vue projects effectively.