From b0bb5e883cbf5aa1fbc963185475992f88f03b9c Mon Sep 17 00:00:00 2001
From: Timebomb2018 <18868801967@163.com>
Date: Wed, 22 Apr 2026 20:05:45 +0800
Subject: [PATCH] refactor(workflow/llm): replace regex substitution with
 string replace for context rendering

---
 api/app/core/workflow/nodes/llm/node.py | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/api/app/core/workflow/nodes/llm/node.py b/api/app/core/workflow/nodes/llm/node.py
index db7f1009..352e735d 100644
--- a/api/app/core/workflow/nodes/llm/node.py
+++ b/api/app/core/workflow/nodes/llm/node.py
@@ -5,7 +5,6 @@ LLM 节点实现
 """
 
 import logging
-import re
 from typing import Any
 
 from langchain_core.messages import AIMessage
@@ -81,7 +80,7 @@ class LLMNode(BaseNode):
 
     def _render_context(self, message: str, variable_pool: VariablePool):
         context = f"<context>{self._render_template(self.typed_config.context, variable_pool)}</context>"
-        return re.sub(r"{{context}}", context, message)
+        return message.replace("{{context}}", context)
 
     async def _prepare_llm(
             self,