- semver
The semantic version parser used by npm.
- yargs
yargs the modern, pirate-themed, successor to optimist.
- mocha
simple, flexible, fun test framework
- mkdirp
Recursively mkdir, like `mkdir -p`
- cheerio
Tiny, fast, and elegant implementation of core jQuery designed specifically for the server
- ws
Simple to use, blazing fast and thoroughly tested websocket client and server for Node.js
- js-yaml
YAML 1.2 parser and serializer
- q
A library for promises (CommonJS/Promises/A,B,D)
- bluebird
Full featured Promises/A+ implementation with exceptionally good performance
- Top PhpStorm plugins