From 43efef442c2bdfec8c5b6fbb6b0973f0557d509e Mon Sep 17 00:00:00 2001
From: Weilong Liao <37870767+Soulter@users.noreply.github.com>
Date: Mon, 8 Jun 2026 01:19:54 +0800
Subject: [PATCH] Update astrbot/core/tools/message_tools.py

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
---
 astrbot/core/tools/message_tools.py | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/astrbot/core/tools/message_tools.py b/astrbot/core/tools/message_tools.py
index 8106fed2c..4763907e1 100644
--- a/astrbot/core/tools/message_tools.py
+++ b/astrbot/core/tools/message_tools.py
@@ -27,12 +27,15 @@ from astrbot.core.utils.astrbot_path import (
 )
 
 
-def _file_send_allowed_roots(umo: str) -> tuple[Path, ...]:
-    return (
-        workspace_root(umo),
+def _file_send_allowed_roots(umo: str | None) -> tuple[Path, ...]:
+    roots = []
+    if umo:
+        roots.append(workspace_root(umo))
+    roots.extend([
         Path(get_astrbot_temp_path()).resolve(strict=False),
         Path(get_astrbot_system_tmp_path()).resolve(strict=False),
-    )
+    ])
+    return tuple(roots)
 
 
 def _is_path_within(path: Path, roots: tuple[Path, ...]) -> bool: