diff --git a/src/autoTag.js b/src/autoTag.js
new file mode 100644
index 0000000..b428ee1
--- /dev/null
+++ b/src/autoTag.js
@@ -0,0 +1,12 @@
+const basicIncludes = (bundleCode, code, display = (code[0].toUpperCase() + code.substring(1))) => {
+  if (bundleCode.includes(code)) return display;
+};
+
+export default (bundleCode) => { // Scans final bundle JS to try and auto-detect things, then adding tags
+  const tags = [
+    basicIncludes(bundleCode, 'react'),
+    basicIncludes(bundleCode, 'document', 'DOM'),
+  ].filter((x) => x !== undefined);
+
+  return tags;
+};
\ No newline at end of file
diff --git a/src/index.js b/src/index.js
index 3a58642..92e91e5 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,4 +1,5 @@
 import ModuleRepos from './modules/index.js';
+import AutoTag from './autoTag.js';
 
 import Parcel from 'parcel-bundler';
 import axios from 'axios';
@@ -161,7 +162,7 @@ for (const parentRepo of ModuleRepos) {
       
       version: manifest.version,
       
-      tags: manifest.tags,
+      tags: manifest.tags.concat(AutoTag(jsCode)),
       
       authors: manifest.authors,
       
@@ -182,7 +183,7 @@ for (const parentRepo of ModuleRepos) {
     
     // console.log(lastHash);
     
-    if (lastHash !== commitHash) {
+    if (commitHash !== '' && lastHash !== commitHash) {
       console.log('[Warning] Commit hash in modules does not match latest commit in repo');
     }
   }