- mocha
simple, flexible, fun test framework
- readable-stream
Streams3, a user-land copy of the stream library from Node.js
- fs
- glob
a little globber
- debug
small debugging utility
- path
- semver
The semantic version parser used by npm.
- bluebird
Full featured Promises/A+ implementation with exceptionally good performance
- winston
A logger for just about everything.
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