diff --git a/calm/draft/2026-03/meta/interface.json b/calm/draft/2026-03/meta/interface.json
index e76b7beed..3fd41bc4c 100644
--- a/calm/draft/2026-03/meta/interface.json
+++ b/calm/draft/2026-03/meta/interface.json
@@ -18,6 +18,9 @@
         "config": {
           "type": "object",
           "description": "Inline configuration conforming to the external interface schema"
+        },
+        "controls": {
+          "$ref": "control.json#/defs/controls"
         }
       },
       "required": [
@@ -32,6 +35,9 @@
       "properties": {
         "unique-id": {
           "type": "string"
+        },
+        "controls": {
+          "$ref": "control.json#/defs/controls"
         }
       },
       "required": [