From 029ac213d0325ea97550ef8fac9c1e1930841908 Mon Sep 17 00:00:00 2001
From: Ayush7614 <ayushknj3@gmail.com>
Date: Fri, 4 Sep 2026 14:13:49 +0530
Subject: [PATCH] fix(chat): drop malformed user content instead of throwing

---
 app/src/components/channels/chat-messages.ts |  6 ++++++
 app/tests/chat-messages.test.ts              | 12 ++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/app/src/components/channels/chat-messages.ts b/app/src/components/channels/chat-messages.ts
index 7dce9acf8..c12273bbb 100644
--- a/app/src/components/channels/chat-messages.ts
+++ b/app/src/components/channels/chat-messages.ts
@@ -98,6 +98,12 @@ export function toVisibleChatItems(
 
     if (message.role !== "user") return [];
 
+    if (
+      typeof message.content !== "string" &&
+      !Array.isArray(message.content)
+    ) {
+      return [];
+    }
     const text =
       typeof message.content === "string"
         ? message.content
diff --git a/app/tests/chat-messages.test.ts b/app/tests/chat-messages.test.ts
index b637c3ecf..028c18a7b 100644
--- a/app/tests/chat-messages.test.ts
+++ b/app/tests/chat-messages.test.ts
@@ -154,4 +154,16 @@ describe("toVisibleChatItems", () => {
 
     expect(toVisibleChatItems([thinking])).toEqual([]);
   });
+
+  test("drops a malformed live user turn instead of throwing", () => {
+    // Live turns bypass schema validation; one bad turn must not unmount the transcript.
+    for (const content of [undefined, null, 42] as unknown[]) {
+      const bad = {
+        id: "user-bad",
+        role: "user",
+        content,
+      } as unknown as Message;
+      expect(toVisibleChatItems([bad])).toEqual([]);
+    }
+  });
 });