effect-mdx

effect-mdx is a comprehensive library for processing MDX (Markdown with JSX) content using Effect-TS. It provides a high-level API for parsing, compiling, and manipulating MDX files with robust error handling and composable asynchronous runtime.

Key features include: • Purely Functional: Built entirely with Effect-TS for robust error handling and composition • Service-Based Architecture: Uses Effect's Service pattern for easy testing and dependency management • Frontmatter-Aware: First-class support for parsing and validating YAML frontmatter • Extensible Compilation: Leverages the unified ecosystem (remark, rehype) for flexible MDX processing • Typed Errors: Custom, typed errors for predictable failure modes

The library supports both backend (Node.js) and frontend (browser/edge) use cases, making it perfect for static sites, documentation platforms, content pipelines, or interactive UIs that render MDX on the client.