Ostiary is a security gem for your (rails) controllers & actions. It employs a before_filter-like call to set policies per controller/action. You can pass your own security call in block and handle the PolicyBroken yourself. Policies are also inherited from parent classes. From wikipedia: "An ostiarius, a Latin word sometimes anglicized as ostiary but often literally translated as porter or doorman, originally was a servant or guard posted at the entrance of a building. See also gatekeeper."

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

Guard::Cane automatically runs Cane when files change

A guard plugin to run an instance of the falcon web server.

JWT authentication solution for Rails APIs

Guard::Rsync automatically syncs directories.

Guard::Zeus automatically manage zeus

guard-rake automatically runs Rake tasks from your Rakefile

This fork of guard/listen provides a stable API for users of the ruby Sass CLI

A Guard plugin for smarter Jekyll watching

Compiles file.html.haml into file.html

Guard::CoffeeScript automatically generates your JavaScripts from your CoffeeScripts

guard-rails-assets automatically generates JavaScript, CSS, Image files using Rails assets pipelie

Guard::Sprockets automatically packages your JavaScript files together.

Manages AWS cloudwatch alarms with default templates using cloudformation

Guard::Test automatically run your tests on file modification.

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

Guard::Migrate automatically runs your database migrations when needed

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

Compiles HamlCoffee templates to javascript