| Name | Lines of code | Maintainability | Test coverage |
| examples/web-service/index.js | 55 | A 35 mins | |
| examples/route-map/index.js | 57 | A 35 mins | |
| examples/mvc/lib/boot.js | 63 | A 2 hrs | |
| lib/express.js | 63 | A 1 hr | |
| examples/view-locals/index.js | 65 | A 1 hr | |
| examples/resource/index.js | 70 | A 35 mins | |
| lib/view.js | 76 | A 1 hr | |
| examples/auth/index.js | 87 | A 0 mins | |
| lib/router/layer.js | 89 | A 2 hrs | |
| lib/router/route.js | 110 | A 3 hrs | |
| lib/utils.js | 124 | A 0 mins | |
| lib/request.js | 166 | A 1 hr | |
| lib/application.js | 277 | D 1 day | |
| lib/router/index.js | 389 | F 4 days | |
| lib/response.js | 538 | F 6 days |