From 9bc41aa117e535d6430c8e2fe0d8f4e04685760e Mon Sep 17 00:00:00 2001
From: season <690088088@qq.com>
Date: Tue, 14 Jul 2026 19:40:51 +0800
Subject: [PATCH] fix(shell_hooks): use explicit UTF-8 encoding with
 errors='replace'

Replace text=True (which uses locale encoding on Windows, e.g. GBK)
with explicit encoding='utf-8', errors='replace' to prevent
UnicodeDecodeError when shell hooks output non-ASCII characters.

text=True on Windows defaults to the system's ANSI codepage (e.g.
GBK/CP936 on Chinese Windows), causing silent failures when hook
output contains characters outside that codepage.
---
 agent/shell_hooks.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/agent/shell_hooks.py b/agent/shell_hooks.py
index c1cec81df333..e2f1fc426553 100644
--- a/agent/shell_hooks.py
+++ b/agent/shell_hooks.py
@@ -464,7 +464,8 @@ def _spawn(spec: ShellHookSpec, stdin_json: str) -> Dict[str, Any]:
             input=stdin_json,
             capture_output=True,
             timeout=spec.timeout,
-            text=True,
+            encoding='utf-8',
+            errors='replace',
             shell=False,
             **_popen_kwargs,
         )