• apps/backend/src/app/api/latest/internal/send-test-webhook/route.tsx
• apps/dashboard/src/app/(main)/(protected)/projects/[projectId]/webhooks/page-client.tsx
• packages/stack-shared/src/interface/admin-interface.ts
• packages/template/src/lib/stack-app/apps/implementations/admin-app-impl.ts
• packages/template/src/lib/stack-app/apps/interfaces/admin-app.ts

apps/backend/src/app/api/latest/internal/send-test-webhook/route.tsx (3)

78-87: Add small backoff and consider a few more retries to avoid false negatives

Immediate polling can race delivery; add a short delay between retries and consider 5 attempts.

Apply for example:

-    const attemptResult = await Result.retry(async () => {
-      const attempts = await svix.messageAttempt.listByMsg(
-        projectId,
-        messageResult.data.id,
-        { status: MessageStatus.Success }
-      );
-      const success = attempts.data.some(a => a.endpointId === body.endpoint_id);
-      return success ? Result.ok(undefined) : Result.error("No successful attempt found");
-    }, 3);
+    const attemptResult = await Result.retry(async () => {
+      // brief backoff to give delivery a chance to complete
+      await new Promise(r => setTimeout(r, 600));
+      const attempts = await svix.messageAttempt.listByMsg(
+        projectId,
+        messageResult.data.id,
+        { status: MessageStatus.Success }
+      );
+      const success = attempts.data.some(a => a.endpointId === body.endpoint_id);
+      return success ? Result.ok(undefined) : Result.error("No successful attempt found");
+    }, 5);

---

48-60: Optional: ensure the stack.test event type exists before sending

Sending usually works without pre-creating, but creating once improves catalog visibility and filters in the portal.

     const messageResult = await Result.fromPromise(svix.message.create(
       projectId,
       {
         eventType: "stack.test",
         payload: {
           type: "stack.test",
           data: {
             message: "Stack webhook test event triggered from the Stack dashboard.",
             endpointUrl: endpoint.url,
           },
         },
       },
     ));
+    // Optionally ensure the event type exists for catalog/filters (no-op if it already exists)
+    // Ignore conflicts/duplicates.
+    // await svix.eventType.create({ name: "stack.test", description: "Stack dashboard test event" }).catch(() => {});

Reference: Svix docs recommend adding event types ahead of time and show eventType.create usage. (docs.svix.com)

---

78-85: Optimize attempt listing by filtering server-side

The Svix SDK v1.76+ supports passing both status and endpointId to messageAttempt.listByMsg. Update to filter attempts server-side instead of scanning all results:

      const attempts = await svix.messageAttempt.listByMsg(
        projectId,
        messageResult.data.id,
-       { status: MessageStatus.Success }
+       { status: MessageStatus.Success, endpointId: body.endpoint_id }
      );
-     const success = attempts.data.some(a => a.endpointId === body.endpoint_id);
+     const success = attempts.data.length > 0;

apps/dashboard/src/app/(main)/(protected)/projects/[projectId]/webhooks/page-client.tsx (1)

255-263: Disable “Send test event” while sending to avoid double-submits

Prevents duplicate requests if the user clicks multiple times.

-      okButton={{
-        label: 'Send test event',
-        onClick: async () => {
+      okButton={{
+        label: 'Send test event',
+        props: { disabled: status === 'sending' },
+        onClick: async () => {
           await sendTestEvent();
           return 'prevent-close';
         },
       }}

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro