| Name | Lines of code | Maintainability | Test coverage |
| lib/Configuration.js | 216 | A 3 hrs | A 94% |
| lib/ModuleFinder.js | 244 | B 5 hrs | B 84% |
| lib/ImportStatement.js | 269 | C 1 day | A 96% |
| lib/findExports.js | 354 | D 2 days | A 98% |
| lib/ExportsStorage.js | 368 | D 2 days | C 71% |
| lib/configurationSchema.js | 422 | C 1 day | |
| lib/Importer.js | 441 | D 2 days | B 88% |