From 3143ade2533538fb218493b4ad82ca70207d567c Mon Sep 17 00:00:00 2001
From: npmrun <1549469775@qq.com>
Date: Sun, 9 Aug 2026 11:12:07 +0800
Subject: [PATCH] feat: session-level systemPrompt takes priority over agent
 default

Co-authored-by: CodeFree <codefree@chinatelcom.cn>
---
 server/service/agent/chat-engine.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/server/service/agent/chat-engine.ts b/server/service/agent/chat-engine.ts
index 7e0037d..ddc7d82 100644
--- a/server/service/agent/chat-engine.ts
+++ b/server/service/agent/chat-engine.ts
@@ -248,7 +248,7 @@ export async function executeChat(params: ChatEngineParams): Promise<ChatEngineR
 
   const languageModel: LanguageModel = toLanguageModel(resolvedModel);
 
-  const systemPrompt = agent.systemPrompt || undefined;
+  const systemPrompt = session.systemPrompt?.trim() || agent.systemPrompt || undefined;
 
   const sessionEnableTools = session.enableTools !== null ? session.enableTools === 1 : agent.enableTools === 1;
   const toolsEnabled = bodyEnableTools !== undefined ? bodyEnableTools : sessionEnableTools;