diff --git a/apps/server/src/orchestration-v2/SubagentProjection.test.ts b/apps/server/src/orchestration-v2/SubagentProjection.test.ts
index 9b3ebfc02f62..29deb33a3ae6 100644
--- a/apps/server/src/orchestration-v2/SubagentProjection.test.ts
+++ b/apps/server/src/orchestration-v2/SubagentProjection.test.ts
@@ -393,6 +393,51 @@ it("exposes the provider failure rather than a progress message from the failed
   assert.isNull(result.messageId);
 });
 
+it("keeps the final report of a run that failed after its turn ended", () => {
+  const { projection, run } = taskFixture();
+  const failedRun = { ...run, status: "failed" as const };
+  const artifacts = makeSubagentConversationArtifacts({
+    messageId: MessageId.make("report"),
+    turnItemId: TurnItemId.make("report"),
+    threadId: parentThreadId,
+    rootNodeId: NodeId.make("root"),
+    providerThreadId: null,
+    providerTurnId: null,
+    nativeItemRef: null,
+    role: "assistant",
+    text: "Review complete: no blocking issues.",
+    ordinal: 1,
+    now: childCreatedAt,
+  });
+  if (artifacts.turnItem.type !== "assistant_message") throw new Error("Expected assistant item");
+  const failure = {
+    class: "unknown" as const,
+    message: "Connection failed repeatedly",
+    code: null,
+    retryable: false,
+  };
+  const result = subagentResultForRun(
+    {
+      ...projection,
+      messages: [{ ...artifacts.message, runId: run.id }],
+      turnItems: [
+        { ...artifacts.turnItem, runId: run.id },
+        {
+          ...artifacts.turnItem,
+          id: TurnItemId.make("error"),
+          ordinal: 2,
+          type: "error",
+          runId: run.id,
+          failure,
+        },
+      ],
+    },
+    failedRun,
+  );
+  assert.include(result.text, failure.message);
+  assert.include(result.text, "Review complete: no blocking issues.");
+});
+
 it("orders a task's assistant messages by turn item, not by timestamps", () => {
   const { projection, run } = taskFixture();
   const at = DateTime.makeUnsafe("2026-07-24T10:05:00.000Z");
diff --git a/packages/provider-core/src/server/subagentProjection.ts b/packages/provider-core/src/server/subagentProjection.ts
index 62145567f665..699067abb3e6 100644
--- a/packages/provider-core/src/server/subagentProjection.ts
+++ b/packages/provider-core/src/server/subagentProjection.ts
@@ -227,8 +227,16 @@ export function subagentResultForRun(
           .filter((item) => item.runId === run.id && item.type === "error")
           .toSorted((left, right) => right.ordinal - left.ordinal)[0]
       : undefined;
+  const reportBeforeFailure =
+    failure !== undefined && turnItem !== null && turnItem.ordinal < failure.ordinal
+      ? (message?.text ?? turnItem.text)
+      : undefined;
   const text =
-    (failure?.type === "error" ? failure.failure.message : undefined) ??
+    (failure?.type === "error"
+      ? reportBeforeFailure === undefined
+        ? failure.failure.message
+        : `${failure.failure.message}\n\nLast assistant message before the run failed:\n\n${reportBeforeFailure}`
+      : undefined) ??
     message?.text ??
     turnItem?.text ??
     (run.status === "completed"