From 4726dea901fcf3fb8f767804faf1bb835ff5ceee Mon Sep 17 00:00:00 2001
From: kang-heewon <heewon.dev@gmail.com>
Date: Thu, 14 May 2026 06:56:51 +0900
Subject: [PATCH] fix(deepseek): use consistent messageIndex 0 for
 non-tool-call reasoning replay

---
 open-sse/translator/index.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/open-sse/translator/index.ts b/open-sse/translator/index.ts
index dec3b92574..49fb8add0e 100644
--- a/open-sse/translator/index.ts
+++ b/open-sse/translator/index.ts
@@ -279,7 +279,7 @@ export function translateRequest(
 
       const cacheKey = hasToolCalls
         ? msg.tool_calls[0]?.id
-        : getAssistantMessageCacheKey(result, messageIndex);
+        : getAssistantMessageCacheKey(result, 0);
       if (cacheKey) {
         const cached = lookupReasoning(cacheKey);
         if (cached) {