* Package name    : node-xo
  Version         : 0.21.1
  Upstream Author : Sindre Sorhus <sindresorhus@gmail.com>
* URL             : https://notabug.org/makenotabuggreatagain/xo/
* License         : MIT
  Programming Lang: javascript
  Description     : JavaScript happiness style linter

From the git repo:

"Opinionated but configurable ESLint wrapper with lots of goodies included.
Enforces strict and readable code. Never discuss code style on a pull request again!
No decision-making. No .eslintrc or .jshintrc to manage. It just works!"

Uses ESLint ( #743404 ) underneath.

node-xo is a dependency of node-gulp-watch ( #916664 ).