Seems to need this too

services/chat/package.json

@@ -47,6 +47,7 @@
     "eslint-plugin-standard": "^4.0.0",
     "mocha": "^4.1.0",
     "nodemon": "^1.14.11",
+    "prettier-eslint-cli": "^4.7.1",
     "sandboxed-module": "",
     "sinon": "",
     "timekeeper": ""