From d984d61123e757bd5c6dc15829bb89070154aaf5 Mon Sep 17 00:00:00 2001
From: Dabao21 <642011598@qq.com>
Date: Sat, 25 Apr 2026 07:41:46 +0800
Subject: [PATCH] fix: correct regex replacement logic in _clean_content()

The previous implementation used '\\n' in p to decide replacement string, which incorrectly matched the raw string literal \\n in all three patterns. This caused <file_content> and <tool_use> tags to be replaced with newlines instead of empty strings. Now each pattern is explicitly paired with its correct replacement.
---
 agent_loop.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/agent_loop.py b/agent_loop.py
index 4f1a3947..d6cc3854 100644
--- a/agent_loop.py
+++ b/agent_loop.py
@@ -106,8 +106,8 @@ def _shrink_code(m):
         preview = '\n'.join(body[:5])
         return f'```{lang}\n{preview}\n  ... ({len(body)} lines)\n```'
     text = re.sub(r'```[\s\S]*?```', _shrink_code, text)
-    for p in [r'<file_content>[\s\S]*?</file_content>', r'<tool_(?:use|call)>[\s\S]*?</tool_(?:use|call)>', r'(\r?\n){3,}']:
-        text = re.sub(p, '\n\n' if '\\n' in p else '', text)
+    for p, repl in [(r'<file_content>[\s\S]*?</file_content>', ''), (r'<tool_(?:use|call)>[\s\S]*?</tool_(?:use|call)>', ''), (r'(\r?\n){3,}', '\n\n')]:
+        text = re.sub(p, repl, text)
     return text.strip()
 
 def _compact_tool_args(name, args):