From bc1a10c28e4adbfe32cd65e86741da567bd22c21 Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Sun, 15 Feb 2026 00:06:51 +0000
Subject: [PATCH] Ignore onTriggeredRun callback failures during streaming

Co-authored-by: Eric Allam <eric@trigger.dev>
---
 packages/ai/README.md                 |  2 +-
 packages/ai/src/chatTransport.test.ts | 62 +++++++++++++++++++++++++++
 packages/ai/src/chatTransport.ts      |  6 ++-
 3 files changed, 68 insertions(+), 2 deletions(-)

diff --git a/packages/ai/README.md b/packages/ai/README.md
index 3f3fc1833..d642510a5 100644
--- a/packages/ai/README.md
+++ b/packages/ai/README.md
@@ -117,7 +117,7 @@ class MemoryStore implements TriggerChatRunStore {
 ```
 
 `onTriggeredRun` can also be async, which is useful for persisting run IDs before
-the chat stream is consumed.
+the chat stream is consumed. Callback failures are ignored so chat streaming can continue.
 
 ## `ai.tool(...)` example
 
diff --git a/packages/ai/src/chatTransport.test.ts b/packages/ai/src/chatTransport.test.ts
index 391cfd1f0..ede31f1cd 100644
--- a/packages/ai/src/chatTransport.test.ts
+++ b/packages/ai/src/chatTransport.test.ts
@@ -688,6 +688,68 @@ describe("TriggerChatTransport", function () {
     expect(callbackCompleted).toBe(true);
   });
 
+  it("continues streaming when onTriggeredRun callback throws", async function () {
+    let callbackCalled = false;
+
+    const server = await startServer(function (req, res) {
+      if (req.method === "POST" && req.url === "/api/v1/tasks/chat-task/trigger") {
+        res.writeHead(200, {
+          "content-type": "application/json",
+          "x-trigger-jwt": "pk_run_callback_error",
+        });
+        res.end(JSON.stringify({ id: "run_callback_error" }));
+        return;
+      }
+
+      if (
+        req.method === "GET" &&
+        req.url === "/realtime/v1/streams/run_callback_error/chat-stream"
+      ) {
+        res.writeHead(200, {
+          "content-type": "text/event-stream",
+        });
+        writeSSE(
+          res,
+          "1-0",
+          JSON.stringify({ type: "text-start", id: "callback_error_1" })
+        );
+        writeSSE(
+          res,
+          "2-0",
+          JSON.stringify({ type: "text-end", id: "callback_error_1" })
+        );
+        res.end();
+        return;
+      }
+
+      res.writeHead(404);
+      res.end();
+    });
+
+    const transport = new TriggerChatTransport({
+      task: "chat-task",
+      stream: "chat-stream",
+      accessToken: "pk_trigger",
+      baseURL: server.url,
+      onTriggeredRun: async function onTriggeredRun() {
+        callbackCalled = true;
+        throw new Error("callback failed");
+      },
+    });
+
+    const stream = await transport.sendMessages({
+      trigger: "submit-message",
+      chatId: "chat-callback-error",
+      messageId: undefined,
+      messages: [],
+      abortSignal: undefined,
+    });
+
+    const chunks = await readChunks(stream);
+    expect(callbackCalled).toBe(true);
+    expect(chunks).toHaveLength(2);
+  });
+
   it("cleans run store state when stream completes", async function () {
     const trackedRunStore = new TrackedRunStore();
 
diff --git a/packages/ai/src/chatTransport.ts b/packages/ai/src/chatTransport.ts
index 7186c9d39..d520e39ac 100644
--- a/packages/ai/src/chatTransport.ts
+++ b/packages/ai/src/chatTransport.ts
@@ -180,7 +180,11 @@ export class TriggerChatTransport<
     await this.runStore.set(runState);
 
     if (this.onTriggeredRun) {
-      await this.onTriggeredRun(runState);
+      try {
+        await this.onTriggeredRun(runState);
+      } catch {
+        // Ignore callback errors so chat streaming can continue.
+      }
     }
 
     const stream = await this.fetchRunStream(runState, options.abortSignal);