remark-frontmatter is a unified (remark) plugin to parse and process frontmatter in Markdown files. This plugin allows you to extract metadata, typically written in YAML or TOML, from the beginning of your Markdown. It integrates seamlessly with remark's ecosystem, providing a structured way to access frontmatter content for use in content processing, templating or other custom logic. The plugin offers options for specifying different frontmatter syntax formats.