metalsmith‑lunr is a Metalsmith plugin that creates a Lunr.js searchable JSON index from a static site’s files. By marking files with `lunr: true` (and optionally configuring fields, reference key, pipeline functions, etc.) developers can generate `searchIndex.json` for client‑side full‑text search without writing any search code themselves. It’s aimed at static‑site developers using Metalsmith who want an easy, configurable client‑side search solution.