From 49675a76fcfc7dbf5906ba4f0c97e1774326adf9 Mon Sep 17 00:00:00 2001
From: Kazuhiro Sera <seratch@openai.com>
Date: Wed, 3 Sep 2025 13:41:40 +0900
Subject: [PATCH] fix(agents-core): persist streamed input before outputs

---
 packages/agents-core/src/run.ts | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/packages/agents-core/src/run.ts b/packages/agents-core/src/run.ts
index fbd6ceb8..5ef4a07f 100644
--- a/packages/agents-core/src/run.ts
+++ b/packages/agents-core/src/run.ts
@@ -1014,14 +1014,10 @@ export class Runner extends RunHooks<any, AgentOutputType<unknown>> {
 
     const executeRun = async () => {
       if (resolvedOptions.stream) {
-        const streamResult = await this.#runIndividualStream(
-          agent,
-          preparedInput,
-          resolvedOptions,
-        );
-        // for streaming runs, the outputs will be save later on
+        // Persist the user's input before streaming outputs so the session
+        // transcript preserves the turn order.
         await saveStreamInputToSession(session, sessionOriginalInput);
-        return streamResult;
+        return this.#runIndividualStream(agent, preparedInput, resolvedOptions);
       }
       const runResult = await this.#runIndividualNonStream(
         agent,