| Name | Lines of code | Maintainability | Test coverage |
| app/services/leaderboard.rb | 28 | A 0 mins | A 100% |
| app/services/solution.rb | 29 | A 0 mins | A 100% |
| app/assets/javascripts/prettify/prettify.js | 31 | A 0 mins | |
| app/controllers/main_controller.rb | 32 | A 0 mins | A 100% |
| app/controllers/sessions_controller.rb | 33 | A 0 mins | B 85% |
| app/models/user.rb | 37 | A 0 mins | A 100% |
| app/controllers/entry_controller.rb | 55 | A 1 hr | B 88% |
| app/services/submissions_per_user.rb | 73 | A 0 mins | A 98% |
| app/controllers/challenges_controller.rb | 84 | A 1 hr | A 98% |
| app/services/submissions.rb | 84 | A 0 mins | A 98% |
| lib/vimgolf/lib/vimgolf/challenge.rb | 109 | A 1 hr | A 98% |
| app/models/challenge.rb | 115 | A 0 mins | A 100% |
| lib/vimgolf/lib/vimgolf/ui.rb | 125 | A 3 hrs | C 71% |
| lib/vimgolf/lib/vimgolf/keylog.rb | 185 | A 1 hr | A 100% |
| lib/vimgolf/lib/vimgolf/cli.rb | 191 | C 1 day | B 85% |