diff --git a/old/extension/manifest.json b/old/extension/manifest.json
new file mode 100644
index 0000000..d2134a7
--- /dev/null
+++ b/old/extension/manifest.json
@@ -0,0 +1,13 @@
+{
+  "manifest_version": 3,
+  "name": "Persimmons",
+  "version": "0.1.0",
+  "description": "Capture source authority and squeeze scoped agent access.",
+  "action": {
+    "default_title": "Persimmons",
+    "default_popup": "popup.html"
+  },
+  "permissions": ["activeTab", "cookies", "storage", "tabs"],
+  "host_permissions": ["https://teahub.xyz/*"],
+  "optional_host_permissions": ["https://*/*", "http://*/*"]
+}