| Name | Lines of code | Maintainability | Test coverage |
| lib/ztk/logger.rb | 76 | A 35 mins | |
| lib/ztk/parallel.rb | 168 | B 4 hrs | |
| lib/ztk/profiler.rb | 12 | A 0 mins | |
| lib/ztk/profiler/core.rb | 66 | A 25 mins | |
| lib/ztk/profiler/private.rb | 43 | A 0 mins | |
| lib/ztk/profiler/timer.rb | 23 | A 0 mins | |
| lib/ztk/profiler/timer/class_methods.rb | 60 | A 0 mins | |
| lib/ztk/pty.rb | 22 | A 0 mins | |
| lib/ztk/rake/docs.rb | 40 | A 0 mins | |
| lib/ztk/report.rb | 17 | A 0 mins | |
| lib/ztk/report/list.rb | 38 | A 2 hrs | |
| lib/ztk/report/private.rb | 33 | A 0 mins | |
| lib/ztk/report/spreadsheet.rb | 43 | A 2 hrs | |
| lib/ztk/rescue_retry.rb | 32 | A 1 hr | |
| lib/ztk/spinner.rb | 28 | A 0 mins | |
| lib/ztk/ssh.rb | 72 | A 0 mins | |
| lib/ztk/ssh/bootstrap.rb | 32 | A 0 mins | |
| lib/ztk/ssh/command.rb | 52 | A 0 mins | |
| lib/ztk/ssh/console.rb | 13 | A 0 mins | |
| lib/ztk/ssh/core.rb | 72 | A 1 hr | |
| lib/ztk/ssh/download.rb | 58 | B 6 hrs | |
| lib/ztk/ssh/exec.rb | 92 | C 1 day | |
| lib/ztk/ssh/file.rb | 26 | A 0 mins | |
| lib/ztk/ssh/private.rb | 82 | A 2 hrs | |
| lib/ztk/ssh/upload.rb | 58 | B 6 hrs | |
| lib/ztk/tcp_socket_check.rb | 43 | A 1 hr | |
| lib/ztk/template.rb | 36 | A 0 mins | |
| lib/ztk/ui.rb | 29 | A 0 mins | |
| lib/ztk/version.rb | 3 | A 0 mins | |
| ztk.gemspec |