diff --git a/ui/desktop/openapi.json b/ui/desktop/openapi.json
index 971f05dbb766..6814ace4eb2a 100644
--- a/ui/desktop/openapi.json
+++ b/ui/desktop/openapi.json
@@ -2332,17 +2332,16 @@
         }
       },
       "ResourceContents": {
-        "oneOf": [
+        "anyOf": [
           {
             "type": "object",
             "required": [
-              "uri",
-              "text"
+              "text",
+              "uri"
             ],
             "properties": {
               "mime_type": {
-                "type": "string",
-                "nullable": true
+                "type": "string"
               },
               "text": {
                 "type": "string"
@@ -2355,16 +2354,15 @@
           {
             "type": "object",
             "required": [
-              "uri",
-              "blob"
+              "blob",
+              "uri"
             ],
             "properties": {
               "blob": {
                 "type": "string"
               },
               "mime_type": {
-                "type": "string",
-                "nullable": true
+                "type": "string"
               },
               "uri": {
                 "type": "string"
diff --git a/ui/desktop/src/api/types.gen.ts b/ui/desktop/src/api/types.gen.ts
index 53230d066b87..6df01c7809fc 100644
--- a/ui/desktop/src/api/types.gen.ts
+++ b/ui/desktop/src/api/types.gen.ts
@@ -463,12 +463,12 @@ export type RedactedThinkingContent = {
 };
 
 export type ResourceContents = {
-    mime_type?: string | null;
+    mime_type?: string;
     text: string;
     uri: string;
 } | {
     blob: string;
-    mime_type?: string | null;
+    mime_type?: string;
     uri: string;
 };
 
diff --git a/ui/desktop/src/components/BaseChat.tsx b/ui/desktop/src/components/BaseChat.tsx
index c20c29de3884..769615b35712 100644
--- a/ui/desktop/src/components/BaseChat.tsx
+++ b/ui/desktop/src/components/BaseChat.tsx
@@ -537,7 +537,7 @@ function BaseChatContent({
         recipeDetails={{
           title: recipeConfig?.title,
           description: recipeConfig?.description,
-          instructions: recipeConfig?.instructions,
+          instructions: recipeConfig?.instructions ?? undefined,
         }}
       />