diff --git a/core/main_terminal_parts/tools_definition/main.py b/core/main_terminal_parts/tools_definition/main.py
index c9bfc47e..a5b46392 100644
--- a/core/main_terminal_parts/tools_definition/main.py
+++ b/core/main_terminal_parts/tools_definition/main.py
@@ -114,7 +114,7 @@ class ToolsDefinitionMainMixin:
                                     "properties": self._inject_intent({
                                         "path": {
                                             "type": "string",
-                                            "description": "项目内的图片相对路径（不要以 /workspace 开头）；宿主机模式可用绝对路径。支持 png/jpg/webp/gif/bmp/svg。"
+                                            "description": "项目内的图片相对路径（不要以 /workspace 开头）；宿主机模式可用绝对路径。支持 png/jpg/webp/gif/bmp。"
                                         }
                                     }),
                                     "required": ["path"]
diff --git a/core/main_terminal_parts/tools_execution.py b/core/main_terminal_parts/tools_execution.py
index ac4b4188..edd96f05 100644
--- a/core/main_terminal_parts/tools_execution.py
+++ b/core/main_terminal_parts/tools_execution.py
@@ -1073,7 +1073,7 @@ class MainTerminalToolsExecutionMixin:
                             return json.dumps({"success": False, "error": f"图片不存在: {path}"}, ensure_ascii=False)
                         if abs_path.stat().st_size > 10 * 1024 * 1024:
                             return json.dumps({"success": False, "error": "图片过大，需 <= 10MB"}, ensure_ascii=False)
-                        allowed_ext = {".png", ".jpg", ".jpeg", ".webp", ".gif", ".bmp", ".svg"}
+                        allowed_ext = {".png", ".jpg", ".jpeg", ".webp", ".gif", ".bmp"}
                         if abs_path.suffix.lower() not in allowed_ext:
                             return json.dumps({"success": False, "error": f"不支持的图片格式: {abs_path.suffix}"}, ensure_ascii=False)
                         # 记录待附加图片，供上层将图片附加到工具结果