Starlight is a documentation framework built on Astro for generating fast, searchable static websites. It functions as a markdown documentation engine that converts markup files into accessible pages using a file-based routing system.
The framework allows for the embedding of custom UI components from various frontend frameworks directly into documentation layouts. This enables the creation of interactive guides and specialized user experiences within a static site structure.
The system includes integrated navigation and search engine optimization, as well as schema-based frontmatter validation to ensure consistent metadata across pages. It provides native support for organizing and serving technical content in multiple languages to reach a global audience.