MiniMark is a compact representation of Abstract Syntax Trees (AST) for Markdown, designed to reduce the size of the AST by leveraging JSON array formats. It's ideal for developers working with Markdown parsing and transformation, offering tools to convert between standard AST, MiniMark, and HAST formats. The project provides utilities like `visit`, `textContent`, `toHast`, and `fromHast` for efficient tree traversal and manipulation.