diff --git a/Assets/package.json b/Assets/package.json
new file mode 100644
index 0000000..56277b1
--- /dev/null
+++ b/Assets/package.json
@@ -0,0 +1,9 @@
+{
+    "name": "dev.n5y.asmdefhelper",
+    "displayName": "AsmdefHelper",
+    "version": "0.5.3",
+    "unity": "2019.3",
+    "description": "Unity assembly definition utilities.",
+    "keywords": ["asmdef", "editor"],
+    "author" : { "name": "naninunenoy" }
+}
diff --git a/Assets/package.json.meta b/Assets/package.json.meta
new file mode 100644
index 0000000..9c1fa6b
--- /dev/null
+++ b/Assets/package.json.meta
@@ -0,0 +1,7 @@
+fileFormatVersion: 2
+guid: 822709412f0e6e44d9a7d95c84453a17
+TextScriptImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: