diff --git a/telemetry/definitions/commonDefinitions.json b/telemetry/definitions/commonDefinitions.json
index 15d6d5dc..3f77cb56 100644
--- a/telemetry/definitions/commonDefinitions.json
+++ b/telemetry/definitions/commonDefinitions.json
@@ -470,6 +470,11 @@
             "type": "string",
             "description": "A unique upload ID for S3"
         },
+        {
+            "name": "codeTransformValidationMetadata",
+            "type": "string",
+            "description": "A field for storing various validation metadata"
+        },
         {
             "name": "codeTransformVCSViewerSrcComponents",
             "type": "string",
@@ -4181,6 +4186,10 @@
                     "type": "codeTransformSessionId",
                     "required": true
                 },
+                {
+                    "type": "codeTransformValidationMetadata",
+                    "required": false
+                },
                 {
                     "type": "reason",
                     "required": false