diff --git a/.github/workflows/validate-canvas-extensions.yml b/.github/workflows/validate-canvas-extensions.yml
index 558a5766c..07d997a13 100644
--- a/.github/workflows/validate-canvas-extensions.yml
+++ b/.github/workflows/validate-canvas-extensions.yml
@@ -54,7 +54,10 @@ jobs:
                 ext_name="${file#extensions/}"
                 ext_name="${ext_name%%/*}"
 
-                if [ "$ext_name" = "external-assets" ]; then
+                # Skip the shared external-assets/ directory and any catalog files that
+                # live directly under extensions/ (e.g. external.json) — these are not
+                # extension directories. Top-level files are identified by a dot in the name.
+                if [ "$ext_name" = "external-assets" ] || [[ "$ext_name" == *.* ]]; then
                   continue
                 fi
 
diff --git a/extensions/external-assets/vox-preview.png b/extensions/external-assets/vox-preview.png
new file mode 100644
index 000000000..9ac349236
Binary files /dev/null and b/extensions/external-assets/vox-preview.png differ
diff --git a/extensions/external.json b/extensions/external.json
index f0e2f561a..a42502492 100644
--- a/extensions/external.json
+++ b/extensions/external.json
@@ -22,5 +22,31 @@
     "installUrl": "https://github.com/jdubois/coffilot",
     "sourceUrl": "https://github.com/jdubois/coffilot",
     "imagePath": "extensions/external-assets/coffilot-preview.png"
+  },
+  {
+    "id": "vox",
+    "name": "Vox",
+    "description": "Hands-free voice panel for Copilot: talk to the agent out loud and hear it reply, with a reactive listening orb. Voice in, voice out.",
+    "author": { "name": "aasis21", "url": "https://github.com/aasis21" },
+    "keywords": [
+      "voice",
+      "text-to-speech",
+      "speech-to-text",
+      "accessibility",
+      "hands-free"
+    ],
+    "screenshots": {
+      "icon": {
+        "path": "extensions/external-assets/vox-preview.png",
+        "type": "image/png"
+      },
+      "gallery": {
+        "path": "extensions/external-assets/vox-preview.png",
+        "type": "image/png"
+      }
+    },
+    "installUrl": "https://github.com/aasis21/vox",
+    "sourceUrl": "https://github.com/aasis21/vox",
+    "imagePath": "extensions/external-assets/vox-preview.png"
   }
 ]