From 99e744743050d99b73bb71bd7fa1f365c4ea4258 Mon Sep 17 00:00:00 2001
From: tt-P607 <68868379+tt-P607@users.noreply.github.com>
Date: Wed, 29 Oct 2025 17:33:02 +0800
Subject: [PATCH] =?UTF-8?q?fix(chat):=20=E6=B8=85=E7=90=86=E6=A8=A1?=
 =?UTF-8?q?=E5=9E=8B=E6=84=8F=E5=A4=96=E7=94=9F=E6=88=90=E7=9A=84=E5=9B=9E?=
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部分语言模型在生成回复时，会自行在内容开头添加如 `[回复<用户>的消息：]` 格式的回复头，这会导致最终消息中出现重复或格式错误的头部。

此提交通过正则表达式循环移除这些多余的回复头，确保输出内容整洁。
---
 src/chat/replyer/default_generator.py | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/chat/replyer/default_generator.py b/src/chat/replyer/default_generator.py
index 334422076..909e79ea0 100644
--- a/src/chat/replyer/default_generator.py
+++ b/src/chat/replyer/default_generator.py
@@ -1884,6 +1884,19 @@ class DefaultReplyer:
                 prompt
             )
 
+            if content:
+                # 循环移除，防止模型生成多个回复头
+                cleaned_content = content
+                while True:
+                    new_content = re.sub(r"^\s*\[回复<[^>]+>\s*的消息：[^\]]+\]\s*", "", cleaned_content).lstrip()
+                    if new_content == cleaned_content:
+                        break
+                    cleaned_content = new_content
+
+                if cleaned_content != content:
+                    logger.debug(f"移除了模型自行生成的回复头，原始内容: '{content}', 清理后: '{cleaned_content}'")
+                    content = cleaned_content
+
             logger.debug(f"replyer生成内容: {content}")
         return content, reasoning_content, model_name, tool_calls