diff --git a/joy-create/package-lock.json b/joy-create/package-lock.json
index a1501a3..a4a5792 100644
--- a/joy-create/package-lock.json
+++ b/joy-create/package-lock.json
@@ -779,8 +779,7 @@
     "balanced-match": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
-      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
-      "dev": true
+      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c="
     },
     "base": {
       "version": "0.11.2",
@@ -966,7 +965,6 @@
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       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
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-      "dev": true,
       "requires": {
         "balanced-match": "1.0.0",
         "concat-map": "0.0.1"
@@ -1284,6 +1282,15 @@
         }
       }
     },
+    "cli": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/cli/-/cli-1.0.1.tgz",
+      "integrity": "sha1-IoF1NPJL+klQw01TLUjsvGIbjBQ=",
+      "requires": {
+        "exit": "0.1.2",
+        "glob": "7.1.2"
+      }
+    },
     "cli-boxes": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/cli-boxes/-/cli-boxes-1.0.0.tgz",
@@ -1555,8 +1562,7 @@
     "concat-map": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
-      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=",
-      "dev": true
+      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s="
     },
     "concat-stream": {
       "version": "1.6.0",
@@ -1615,6 +1621,14 @@
         "xdg-basedir": "3.0.0"
       }
     },
+    "console-browserify": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/console-browserify/-/console-browserify-1.1.0.tgz",
+      "integrity": "sha1-8CQcRXMKn8YyOyBtvzjtx0HQuxA=",
+      "requires": {
+        "date-now": "0.1.4"
+      }
+    },
     "convert-source-map": {
       "version": "1.5.1",
       "resolved": "https://registry.npmjs.org/convert-source-map/-/convert-source-map-1.5.1.tgz",
@@ -1646,8 +1660,7 @@
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       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz",
-      "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac=",
-      "dev": true
+      "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac="
     },
     "crc": {
       "version": "3.5.0",
@@ -1837,6 +1850,11 @@
       "resolved": "https://registry.npmjs.org/dat-gui/-/dat-gui-0.5.0.tgz",
       "integrity": "sha1-EhLag2EJdH0KwiC617B8F9qgNYM="
     },
+    "date-now": {
+      "version": "0.1.4",
+      "resolved": "https://registry.npmjs.org/date-now/-/date-now-0.1.4.tgz",
+      "integrity": "sha1-6vQ5/U1ISK105cx9vvIAZyueNFs="
+    },
     "dateformat": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/dateformat/-/dateformat-2.2.0.tgz",
@@ -2148,6 +2166,49 @@
         }
       }
     },
+    "dom-serializer": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/dom-serializer/-/dom-serializer-0.1.0.tgz",
+      "integrity": "sha1-BzxpdUbOB4DOI75KKOKT5AvDDII=",
+      "requires": {
+        "domelementtype": "1.1.3",
+        "entities": "1.1.1"
+      },
+      "dependencies": {
+        "domelementtype": {
+          "version": "1.1.3",
+          "resolved": "https://registry.npmjs.org/domelementtype/-/domelementtype-1.1.3.tgz",
+          "integrity": "sha1-vSh3PiZCiBrsUVRJJCmcXNgiGFs="
+        },
+        "entities": {
+          "version": "1.1.1",
+          "resolved": "https://registry.npmjs.org/entities/-/entities-1.1.1.tgz",
+          "integrity": "sha1-blwtClYhtdra7O+AuQ7ftc13cvA="
+        }
+      }
+    },
+    "domelementtype": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/domelementtype/-/domelementtype-1.3.0.tgz",
+      "integrity": "sha1-sXrtguirWeUt2cGbF1bg/BhyBMI="
+    },
+    "domhandler": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/domhandler/-/domhandler-2.3.0.tgz",
+      "integrity": "sha1-LeWaCCLVAn+r/28DLCsloqir5zg=",
+      "requires": {
+        "domelementtype": "1.3.0"
+      }
+    },
+    "domutils": {
+      "version": "1.5.1",
+      "resolved": "https://registry.npmjs.org/domutils/-/domutils-1.5.1.tgz",
+      "integrity": "sha1-3NhIiib1Y9YQeeSMn3t+Mjc2gs8=",
+      "requires": {
+        "dom-serializer": "0.1.0",
+        "domelementtype": "1.3.0"
+      }
+    },
     "dot-prop": {
       "version": "4.2.0",
       "resolved": "https://registry.npmjs.org/dot-prop/-/dot-prop-4.2.0.tgz",
@@ -2604,6 +2665,11 @@
         "once": "1.4.0"
       }
     },
+    "entities": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/entities/-/entities-1.0.0.tgz",
+      "integrity": "sha1-sph6o4ITR/zeZCsk/fyeT7cSvyY="
+    },
     "env-paths": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/env-paths/-/env-paths-1.0.0.tgz",
@@ -2755,6 +2821,11 @@
         "strip-eof": "1.0.0"
       }
     },
+    "exit": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/exit/-/exit-0.1.2.tgz",
+      "integrity": "sha1-BjJjj42HfMghB9MKD/8aF8uhzQw="
+    },
     "expand-brackets": {
       "version": "0.1.5",
       "resolved": "https://registry.npmjs.org/expand-brackets/-/expand-brackets-0.1.5.tgz",
@@ -2839,6 +2910,23 @@
         "debug": "2.6.9",
         "mkdirp": "0.5.0",
         "yauzl": "2.4.1"
+      },
+      "dependencies": {
+        "minimist": {
+          "version": "0.0.8",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
+          "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=",
+          "dev": true
+        },
+        "mkdirp": {
+          "version": "0.5.0",
+          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.0.tgz",
+          "integrity": "sha1-HXMHam35hs2TROFecfzAWkyavxI=",
+          "dev": true,
+          "requires": {
+            "minimist": "0.0.8"
+          }
+        }
       }
     },
     "extsprintf": {
@@ -5338,8 +5426,7 @@
     "fs.realpath": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
-      "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8=",
-      "dev": true
+      "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8="
     },
     "fsevents": {
       "version": "1.1.3",
@@ -6303,7 +6390,6 @@
       "version": "7.1.2",
       "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.2.tgz",
       "integrity": "sha512-MJTUg1kjuLeQCJ+ccE4Vpa6kKVXkPYJ2mOCQyUuKLcLQsdrMCpBPUi8qVE6+YuaJkozeA9NusTAw3hLr8Xe5EQ==",
-      "dev": true,
       "requires": {
         "fs.realpath": "1.0.0",
         "inflight": "1.0.6",
@@ -7888,6 +7974,18 @@
       "integrity": "sha512-lIbgIIQA3lz5XaB6vxakj6sDHADJiZadYEJB+FgA+C4nubM1NwcuvUr9EJPmnH1skZqpqUzWborWo8EIUi0Sdw==",
       "dev": true
     },
+    "htmlparser2": {
+      "version": "3.8.3",
+      "resolved": "https://registry.npmjs.org/htmlparser2/-/htmlparser2-3.8.3.tgz",
+      "integrity": "sha1-mWwosZFRaovoZQGn15dX5ccMEGg=",
+      "requires": {
+        "domelementtype": "1.3.0",
+        "domhandler": "2.3.0",
+        "domutils": "1.5.1",
+        "entities": "1.0.0",
+        "readable-stream": "1.1.14"
+      }
+    },
     "http-signature": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/http-signature/-/http-signature-1.2.0.tgz",
@@ -7955,7 +8053,6 @@
       "version": "1.0.6",
       "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
       "integrity": "sha1-Sb1jMdfQLQwJvJEKEHW6gWW1bfk=",
-      "dev": true,
       "requires": {
         "once": "1.4.0",
         "wrappy": "1.0.2"
@@ -7964,8 +8061,7 @@
     "inherits": {
       "version": "2.0.3",
       "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.3.tgz",
-      "integrity": "sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=",
-      "dev": true
+      "integrity": "sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4="
     },
     "ini": {
       "version": "1.3.5",
@@ -8372,8 +8468,7 @@
     "isarray": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/isarray/-/isarray-0.0.1.tgz",
-      "integrity": "sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8=",
-      "dev": true
+      "integrity": "sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8="
     },
     "isbinaryfile": {
       "version": "3.0.2",
@@ -8423,7 +8518,7 @@
         "glob": "5.0.15",
         "handlebars": "4.0.11",
         "js-yaml": "3.11.0",
-        "mkdirp": "0.5.0",
+        "mkdirp": "0.5.1",
         "nopt": "3.0.6",
         "once": "1.4.0",
         "resolve": "1.1.7",
@@ -8530,6 +8625,33 @@
       "integrity": "sha1-RsP+yMGJKxKwgz25vHYiF226s0s=",
       "dev": true
     },
+    "jshint": {
+      "version": "2.9.5",
+      "resolved": "https://registry.npmjs.org/jshint/-/jshint-2.9.5.tgz",
+      "integrity": "sha1-HnJSkVzmgbQIJ+4UJIxG006apiw=",
+      "requires": {
+        "cli": "1.0.1",
+        "console-browserify": "1.1.0",
+        "exit": "0.1.2",
+        "htmlparser2": "3.8.3",
+        "lodash": "3.7.0",
+        "minimatch": "3.0.4",
+        "shelljs": "0.3.0",
+        "strip-json-comments": "1.0.4"
+      },
+      "dependencies": {
+        "lodash": {
+          "version": "3.7.0",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-3.7.0.tgz",
+          "integrity": "sha1-Nni9irmVBXwHreg27S7wh9qBHUU="
+        },
+        "strip-json-comments": {
+          "version": "1.0.4",
+          "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-1.0.4.tgz",
+          "integrity": "sha1-HhX7ysl9Pumb8tc7TGVrCCu6+5E="
+        }
+      }
+    },
     "json-schema": {
       "version": "0.2.3",
       "resolved": "https://registry.npmjs.org/json-schema/-/json-schema-0.2.3.tgz",
@@ -8714,7 +8836,7 @@
         "graceful-fs": "4.1.11",
         "image-size": "0.5.5",
         "mime": "1.6.0",
-        "mkdirp": "0.5.0",
+        "mkdirp": "0.5.1",
         "promise": "7.3.1",
         "request": "2.81.0",
         "source-map": "0.5.7"
@@ -9567,7 +9689,6 @@
       "version": "3.0.4",
       "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
       "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
-      "dev": true,
       "requires": {
         "brace-expansion": "1.1.11"
       }
@@ -9600,10 +9721,9 @@
       }
     },
     "mkdirp": {
-      "version": "0.5.0",
-      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.0.tgz",
-      "integrity": "sha1-HXMHam35hs2TROFecfzAWkyavxI=",
-      "dev": true,
+      "version": "0.5.1",
+      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
+      "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
       "requires": {
         "minimist": "0.0.8"
       },
@@ -9611,8 +9731,7 @@
         "minimist": {
           "version": "0.0.8",
           "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
-          "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=",
-          "dev": true
+          "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0="
         }
       }
     },
@@ -13918,7 +14037,6 @@
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
       "integrity": "sha1-WDsap3WWHUsROsF9nFC6753Xa9E=",
-      "dev": true,
       "requires": {
         "wrappy": "1.0.2"
       }
@@ -14161,8 +14279,7 @@
     "path-is-absolute": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz",
-      "integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18=",
-      "dev": true
+      "integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18="
     },
     "path-is-inside": {
       "version": "1.0.2",
@@ -14548,7 +14665,6 @@
       "version": "1.1.14",
       "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-1.1.14.tgz",
       "integrity": "sha1-fPTFTvZI44EwhMY23SB54WbAgdk=",
-      "dev": true,
       "requires": {
         "core-util-is": "1.0.2",
         "inherits": "2.0.3",
@@ -15046,6 +15162,11 @@
       "integrity": "sha1-2kL0l0DAtC2yypcoVxyxkMmO/qM=",
       "dev": true
     },
+    "shelljs": {
+      "version": "0.3.0",
+      "resolved": "https://registry.npmjs.org/shelljs/-/shelljs-0.3.0.tgz",
+      "integrity": "sha1-NZbmMHp4FUT1kfN9phg2DzHbV7E="
+    },
     "signal-exit": {
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.2.tgz",
@@ -15502,8 +15623,7 @@
     "string_decoder": {
       "version": "0.10.31",
       "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-0.10.31.tgz",
-      "integrity": "sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ=",
-      "dev": true
+      "integrity": "sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ="
     },
     "stringstream": {
       "version": "0.0.5",
@@ -16704,8 +16824,7 @@
     "wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
-      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
-      "dev": true
+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
     },
     "write-file-atomic": {
       "version": "2.3.0",
diff --git a/joy-create/package.json b/joy-create/package.json
index 4a0a123..e4ccd39 100644
--- a/joy-create/package.json
+++ b/joy-create/package.json
@@ -38,6 +38,8 @@
   },
   "dependencies": {
     "dat-gui": "^0.5.0",
+    "jshint": "^2.9.5",
+    "mkdirp": "^0.5.1",
     "monaco-editor": "^0.10.1",
     "npm": "^5.8.0",
     "stats-js": "^1.0.0-alpha1",
@@ -79,5 +81,8 @@
       "from": "node_modules/monaco-editor/min/vs",
       "to": "app/vendor/vs"
     }
-  ]
+  ],
+  "jshintConfig": {
+    "esversion": 6
+  }
 }
diff --git a/joy-create/tasks/build_tests.js b/joy-create/tasks/build_tests.js
index 76bf675..8bc58a2 100644
--- a/joy-create/tasks/build_tests.js
+++ b/joy-create/tasks/build_tests.js
@@ -6,8 +6,8 @@ const istanbul = require('rollup-plugin-istanbul');
 // Spec files are scattered through the whole project. Here we're searching
 // for them and generate one entry file which will run all the tests.
 const generateEntryFile = (dir, destFileName, filePattern) => {
-  const fileBanner = '// This file is generated automatically.\n'
-  + '// All modifications will be lost.\n';
+  const fileBanner = '// This file is generated automatically.\n' +
+                     '// All modifications will be lost.\n';
 
   return dir.findAsync('.', { matching: filePattern })
   .then((specPaths) => {
@@ -46,4 +46,4 @@ gulp.task('build-e2e', gulp.series('build', () => {
   .then((entryFilePath) => {
     return bundle(entryFilePath, destDir.path('e2e.js.autogenerated'));
   });
-}));
\ No newline at end of file
+}));
diff --git a/joy-create/tasks/bundle.js b/joy-create/tasks/bundle.js
index 8b4f9a7..44cbe37 100644
--- a/joy-create/tasks/bundle.js
+++ b/joy-create/tasks/bundle.js
@@ -50,10 +50,10 @@ module.exports = (src, dest, opts) => {
         jetpack.writeAsync(dest, `${isolatedCode}\n//# sourceMappingURL=${jsFile}.map`),
         jetpack.writeAsync(`${dest}.map`, result.map.toString()),
       ]);
-    })
+    });
   })
   .catch(e => {
     console.error(e);
     throw e;
   });
-};
\ No newline at end of file
+};