Shrub is a small Node.js utility for traversing a directory tree and processing its files with a fluent, chain‑able API. It lets developers asynchronously `each`, `filter` or `find` files using callbacks that receive the file path and stats, and then resolve the results via a promise‑style `.then()` call. The package is aimed at JavaScript developers who need a simple, promise‑compatible way to manipulate file lists recursively.