Instead, add grunt-cli to wh project's dependencies (or whatever projects require running grunt commands) and run with node_modules/.bin/grunt [arguments] or via npm run grunt -- [arguments] with:

// package.json
"scripts": {
  "grunt": "grunt"
},
"dependencies": {
  "grunt": "[semver]"
}

This would get rid of the need to install grunt-cli globally and allow pinning to a specific grunt version to avoid CLI commands breaking with version incompatibilities. It would also allow for a seamless transition if you guys were to switch to gulp or another task library (by simply updating wh).