diff --git a/my-cool-action/Dockerfile b/my-cool-action/Dockerfile
index 9db1acd..18a115f 100644
--- a/my-cool-action/Dockerfile
+++ b/my-cool-action/Dockerfile
@@ -1,21 +1,8 @@
-# Use the latest version of Node.js
-#
-# You may prefer the full image:
-# FROM node
-#
-# or even an alpine image (a smaller, faster, less-feature-complete image):
-# FROM node:alpine
-#
-# You can specify a version:
-# FROM node:10-slim
 FROM node:slim
 
-# Labels for GitHub to read your action
 LABEL "com.github.actions.name"="check-files"
 LABEL "com.github.actions.description"="Checks files to see which are changed with PR"
-# Here are all of the available icons: https://feathericons.com/
 LABEL "com.github.actions.icon"="alert-octagon"
-# And all of the available colors: https://developer.github.com/actions/creating-github-actions/creating-a-docker-container/#label
 LABEL "com.github.actions.color"="purple"
 
 # Copy the package.json and package-lock.json
@@ -27,5 +14,4 @@ RUN npm install
 # Copy the rest of your action's code
 COPY . .
 
-# Run `node /index.js`
 ENTRYPOINT ["node", "/index.js"]
diff --git a/my-cool-action/index.js b/my-cool-action/index.js
index f8592e8..eb7f783 100644
--- a/my-cool-action/index.js
+++ b/my-cool-action/index.js
@@ -1,4 +1,6 @@
 const { Toolkit } = require('actions-toolkit')
+const shell = require('shelljs');
+
 const tools = new Toolkit({
     event: ['pull_request.opened', 'pull_request.synchronize'],
 });
@@ -9,13 +11,13 @@ Toolkit.run(async tools => {
   let num = tools.context.payload.number;
 
   const list = await tools.github.pulls.listFiles({'number': '2', 'owner': 'tomczoink', 'repo': 'emails-tom' });
-  //console.log(list);
 
-  let files = Object.values(JSON.parse(list));
-  let regex = RegExp('.mjml', 'g');
+  let files = Object.values(list.data);
+  let regex = RegExp('product-updates/(.*?)\.mjml', 'g');
+  let changedFiles = [];
   for (var i = 0; i < files.length; i++) {
-    console.log(files[i]);
-    console.log(regex.test(files[i].filename));
+    if(regex.test(files[i].filename)) {
+      shell.exec('./my-cool-action/mjml-compile ./' + files[i].filename );
+    }
   }
-
 })
diff --git a/my-cool-action/mjml b/my-cool-action/mjml
new file mode 100755
index 0000000..66e28e7
--- /dev/null
+++ b/my-cool-action/mjml
@@ -0,0 +1,4 @@
+#!/usr/bin/env node
+
+require('../lib/index')
+require('mjml-cli')
diff --git a/my-cool-action/mjml-compile b/my-cool-action/mjml-compile
new file mode 100755
index 0000000..68db33b
--- /dev/null
+++ b/my-cool-action/mjml-compile
@@ -0,0 +1,44 @@
+#!/bin/bash
+
+set -eo pipefail
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null && pwd )"
+
+if [ -z "$1" ]; then
+  echo "Usage: mjml-compile [path-to-file-to-compile]"
+  echo ""
+  echo "  e.g. mjml-compile product-updates/18-02-07-ClientLib1-1/index"
+  exit 1
+fi
+
+FILE_WITHOUT_EXT=`echo "$1" | sed 's/\(.*\)\.mjml/\1/'`
+
+MJML_FILE="${DIR}/../${FILE_WITHOUT_EXT}.mjml"
+HTML_FILE="${DIR}/../${FILE_WITHOUT_EXT}.html"
+
+RED='\033[0;31m'
+NO_COLOR='\033[0m'
+
+if [ ! -f "${MJML_FILE}" ]; then
+  echo "File '${MJML_FILE}' does not exist"
+  exit 1
+fi
+
+node "my-cool-action/mjml" "${MJML_FILE}" -o "${HTML_FILE}"
+
+if grep "http://link" "${HTML_FILE}"; then
+  echo -e "\n${RED}Error: http://link exists in the generated HTML. This is NEVER valid!${NO_COLOR}"
+  exit 1
+fi
+
+if grep "todo" "${HTML_FILE}"; then
+  echo -e "\n${RED}Error: The text TODO exists in the generated HTML. This is NEVER valid!${NO_COLOR}"
+  exit 1
+fi
+
+if grep -E "src=[\"']" "${HTML_FILE}" | grep -v -E "src=[\"']https://files.ably.io"; then
+  echo -e "\n${RED}Error: It looks like you are referencing images that are not from the CDN. You must use https://files.ably.io for all image references${NO_COLOR}"
+  exit 1
+fi
+
+echo "HTML file generated at: ${FILE_WITHOUT_EXT}.html"
diff --git a/my-cool-action/package.json b/my-cool-action/package.json
index eec285a..8554887 100644
--- a/my-cool-action/package.json
+++ b/my-cool-action/package.json
@@ -7,9 +7,12 @@
     "test": "jest"
   },
   "dependencies": {
-    "actions-toolkit": "^2.0.0"
+    "actions-toolkit": "^2.0.0",
+    "shelljs": "^0.8.3",
+    "mjml": "~4.2.1",
+    "nodemon": "~1.18.10"
   },
   "devDependencies": {
     "jest": "^24.5.0"
   }
-}
\ No newline at end of file
+}
diff --git a/package.json b/package.json
index 92906bb..4cb08ef 100644
--- a/package.json
+++ b/package.json
@@ -9,6 +9,7 @@
     "dependencies": {
         "actions-toolkit": "^2.0.0",
         "mjml": "~4.2.1",
-        "nodemon": "~1.18.10"
+        "nodemon": "~1.18.10",
+        "shelljs": "^0.8.3"
     }
 }
diff --git a/test/entrypoint.sh b/test/entrypoint.sh
index 796a19d..ee334e8 100755
--- a/test/entrypoint.sh
+++ b/test/entrypoint.sh
@@ -5,4 +5,4 @@ for file in product-updates/*/index.mjml; do
     if [ -f "$file" ]; then 
       bin/mjml-compile "$file" 
     fi 
-done
\ No newline at end of file
+done