RSense is a tool for doing static analysis of Ruby source code. Rsense is used in conjunction with an editor plugin.
RSense is currently under heavy development and ready for testing. Currently we need to improve the homepage and develop plugins for code_completion. In the near future we'll also be ready to implement some of the other basic features like find-definition . After that, there's plenty to do in the long term. See the waffle link below to find out where you can pitch in. It would be awesome if you helped get things done.
RSense is installed via RubyGems. It works well installed via Bundler as that gives it access to your application's LOAD_PATH very easily, and ensures it's installed into the same Ruby as your other dependencies if you happen to be using a version management tool like rbenv. Otherwise, be sure to install it with the proper version of Ruby.