Guard::PHPUnit automatically run your unit-tests written with the PHPUnit testing framework.

Allows you to focus on a few tests with ease without having to use command-line arguments. Good for tools like guard that don't have enough brains to understand test output. Cf. minitest-autotest (an example of a test runner with strong testing logic). Inspired by https://github.com/seattlerb/minitest/issues/213

Display system notifications after running tests. It works on Mac OS X, Linux and Windows. Powerful when used with autotest or guard.

A Guard plugin for smarter Jekyll watching

Guard::CoffeeScript automatically generates your JavaScripts from your CoffeeScripts

Guard::Compass automatically rebuilds scss|sass files when a modification occurs taking in account your compass configuration.

Guard::Zeus automatically manage zeus

These RSpec matchers allow guarding against N+1 queries by specifying exactly how many queries you expect each of your ActiveRecord models to perform.

Restart puma when files change

Guard::Motion automatically run your specs (much like autotest).

Ruby Critic is a tool that listens to modifications in Ruby classes, modules and methods and reports any new code smells it finds.

Guard::Less automatically compiles less (like lessc --watch)

Feature flags made simple: turn code on or off with Redis controls, allowing plain enabled/disabled states as well as finer-grained percentage-based control.

Guard extension to run cli processes

Guard::Pow automatically manage Pow applications restart

Guard::Sidekiq automatically starts/stops/restarts sidekiq worker

Automatically reloads your Rack based app on file change using Guard.

Guard plugin for test kitchen

Automatically rebuilds Nanoc sites

Compiles file.html.haml into file.html