- yargs
yargs the modern, pirate-themed, successor to optimist.
- rimraf
A deep deletion module for node (like `rm -rf`)
- mkdirp
Recursively mkdir, like `mkdir -p`
- semver
The semantic version parser used by npm.
- postcss
- cheerio
Tiny, fast, and elegant implementation of core jQuery designed specifically for the server
- body-parser
Node.js body parsing middleware
- bluebird
Full featured Promises/A+ implementation with exceptionally good performance
- q
A library for promises (CommonJS/Promises/A,B,D)
- Top 12 Jupyter Notebook extensions