I wanted that zeus would reload all my shared examples for each test. This required the following custom plan. # ./custom_plan.rb require 'zeus/rails' class CustomPlan < Zeus::Rails def test Dir[Rails.root.join('spec/support/**/*.rb')].each { |f| require f } Dir[Rails.root.join('spec/controllers/shared_specs/**/*.rb')].each { |f| puts "reloading #{f}";load f } super end end Zeus.plan = CustomPlan.new To get zeus to use it, add a zeus.json with the following content: { "command": "ruby -rubygems -r./path/to_your/custom_plan -eZeus.go", "plan": { "boot": { "default_bundle": { "development_environment": { "prerake": {"rake": []}, "runner": ["r"], "console": ["c"], "server": ["s"], "generate": ["g"], "destroy": ["d"], "dbconsole": [] }, "test_environment": { "test_helper": {"test": ["test"]} } } } } }