nopt
Option parsing for Node, supporting types, shorthands, etc. Used by npm.
Updated by @adam_baldwin
write-file-atomic
Write files in an atomic fashion w/configurable ownership
Updated by @adam_baldwin
hosted-git-info
Provides metadata and conversions from repository urls for GitHub, Bitbucket and GitLab
Updated by @gar
read-package-json
The thing npm uses to read package.json files with semantics and defaults and validation
Updated by @gar
minizlib
A small fast zlib stream built on [minipass](http://npm.im/minipass) and Node.js's zlib binding.
Updated by @adam_baldwin
read-cmd-shim
Figure out what a cmd-shim is pointing at. This acts as the equivalent of fs.readlink.
Updated by @adam_baldwin
npm-pick-manifest
Resolves a matching manifest from a package metadata document according to standard npm semver resolution rules.
Updated by @gar