require-directory

Recursively iterates over specified directory, require()'ing each file, and returning a nested hash structure containing those modules.

find-package-json

Find package.json files in parent directories, keep finding until you find the right one using iterators.

fs-extra

fs-extra contains methods that aren't included in the vanilla Node.js fs package. Such as recursive mkdir, copy, and remove.

escalade

A tiny (183B to 210B) and fast utility to ascend parent directories