The **markdown-it‑mermaid‑plugin** is a tiny extension for the **markdown‑it** parser that adds native support for Mermaid diagram blocks within Markdown documents. It’s aimed at developers or technical writers who use markdown‑it (e.g., in static site generators, documentation tools, or blog platforms) and want a simple way to embed flowcharts, sequence diagrams, and other Mermaid visuals without extra processing steps.