diff --git a/astrbot/core/core_lifecycle.py b/astrbot/core/core_lifecycle.py
index d50955cd1..d126ff26c 100644
--- a/astrbot/core/core_lifecycle.py
+++ b/astrbot/core/core_lifecycle.py
@@ -50,12 +50,19 @@ class AstrBotCoreLifecycle:
         self.db = db  # 初始化数据库
 
         # 设置代理
-        if self.astrbot_config.get("http_proxy", ""):
-            os.environ["https_proxy"] = self.astrbot_config["http_proxy"]
-            os.environ["http_proxy"] = self.astrbot_config["http_proxy"]
-        if proxy := os.environ.get("https_proxy"):
-            logger.debug(f"Using proxy: {proxy}")
-        os.environ["no_proxy"] = "localhost"
+        proxy_config = self.astrbot_config.get("http_proxy", "")
+        if proxy_config != "":
+            os.environ["https_proxy"] = proxy_config
+            os.environ["http_proxy"] = proxy_config
+            logger.debug(f"Using proxy: {proxy_config}")
+        else:
+            # 清空代理环境变量
+            if "https_proxy" in os.environ:
+                del os.environ["https_proxy"]
+            if "http_proxy" in os.environ:
+                del os.environ["http_proxy"]
+            logger.debug("HTTP proxy cleared")
+        os.environ["no_proxy"] = "localhost,127.0.0.1,::1"
 
     async def initialize(self):
         """
diff --git a/astrbot/core/pipeline/process_stage/method/llm_request.py b/astrbot/core/pipeline/process_stage/method/llm_request.py
index 5d38a90cc..8ae02dc63 100644
--- a/astrbot/core/pipeline/process_stage/method/llm_request.py
+++ b/astrbot/core/pipeline/process_stage/method/llm_request.py
@@ -531,6 +531,10 @@ class LLMRequestSubStage(Stage):
         ):
             return
 
+        if not llm_response.completion_text and not req.tool_calls_result:
+            logger.debug("LLM 响应为空，不保存记录。")
+            return
+
         # 历史上下文
         messages = copy.deepcopy(req.contexts)
         # 这一轮对话请求的用户输入
diff --git a/astrbot/core/pipeline/respond/stage.py b/astrbot/core/pipeline/respond/stage.py
index ffdebf276..14ec16076 100644
--- a/astrbot/core/pipeline/respond/stage.py
+++ b/astrbot/core/pipeline/respond/stage.py
@@ -144,8 +144,6 @@ class RespondStage(Stage):
             try:
                 if await self._is_empty_message_chain(result.chain):
                     logger.info("消息为空，跳过发送阶段")
-                    event.clear_result()
-                    event.stop_event()
                     return
             except Exception as e:
                 logger.warning(f"空内容检查异常: {e}")