AutoAdmin: an Admin UI that prefers hints over directions

remove before_action each controller

Auto assign model resource and collection from controller

Automatically add breadcrumbs to each page by using locales

Model-side logic for autocompleting belongs_to associations

Integrate with jQuery UI autocomplete library to provide select by autocomplete input and form helper.

AutoError is a mountable engine for Rails 4.0+ which provides an 'exceptions_app' which helps you catch exceptions (showing the appropriate page to users) and an interface you can mount in your admin panel to display those errors.

automated metareview

Allows you to easily set page titles per view in your Rails 4 app, but also follows Ruby on Rails naming conventions to set sensible default title if none is specified.

Automatically create a has_one or belongs_to association the first time it is accessed. Also supports optional default attributes or block usage to customize the record creation.

Store your migrations direct in models

Auto-generate mock_data of JSON API response from your request-specs.

auto define mock_xxx methods

Make backups of your stuff in a simple way.

Counter caching with a bit more for Rails

Recursively delete a collection and its all assoication with less sqls

AwesomeSms.

Server-side tooltips for your Ruby on Rails application with Vanila JS

A scheduling utility dirven by Cloudwatch Events, via SNS, to Rails using Tickwork as the scheduling utility

Building blocks and general helpers for platform services