Guard::Minitest automatically run your tests with MiniTest framework (much like autotest)

Prevents methods from running which have been guarded against by a callback specified at the beginning of the class.

Guard::Cloudformation automatically validates cloud formation templates.

Guard::PredictionIO automatically runs your PredictionIO server

Filter parameters by defining a required structure

In defining your classes, you can define allowable return values for your methods by type and with user-defined guards.

Guard::Autorefresh automatically reloads your browser when 'view' files are modified.

Gem generator for Sinatra applications that use the following libraries: sequel, mustache, test-unit, rack-test, mocha, guard

Run your bacon specs on file change

Guard gem for Go test

Guard::Chef allows to automatically & intelligently update roles, cookbooks, and databags for chef.