diff --git a/src/aios_kernel/knowledge_pipeline.py b/src/aios_kernel/knowledge_pipeline.py
index 966b743..22d0355 100644
--- a/src/aios_kernel/knowledge_pipeline.py
+++ b/src/aios_kernel/knowledge_pipeline.py
@@ -157,7 +157,7 @@ class KnowledgeEmailSource:
         for uid in email_list:
             _uid = int.from_bytes(uid)
             if _uid > latest_uid:
-            email_dir = self.check_email_saved(uid)
+                email_dir = self.check_email_saved(uid)
             if email_dir is not None:
                 logging.info(f"email uid {uid} already saved")
             else:
diff --git a/src/aios_kernel/local_st_compute_node.py b/src/aios_kernel/local_st_compute_node.py
index 135797f..e73b9f9 100644
--- a/src/aios_kernel/local_st_compute_node.py
+++ b/src/aios_kernel/local_st_compute_node.py
@@ -17,18 +17,27 @@ class LocalSentenceTransformer_ComputeNode(Queue_ComputeNode):
     def __init__(self, model_name: str = "all-MiniLM-L6-v2"):
         super().__init__()
 
-        logger.info(
-            f"LocalSentenceTransformer_ComputeNode init, model_name: {model_name}"
-        )
+        self.node_id = "local_sentence_transformer_node"
         self.model_name = model_name
+        self.model = None
 
+    def initial(self) -> bool:
+        logger.info(
+            f"LocalSentenceTransformer_ComputeNode init, model_name: {self.model_name}"
+        )
+        
+        assert self.model_name is not None
+        assert self.model is None
         try:
             from sentence_transformers import SentenceTransformer
 
             self.model = SentenceTransformer(self.model)
         except Exception as err:
             logger.error(f"load model {self.model} failed: {err}")
-
+            return False
+        
+        return True
+    
     async def execute_task(
         self, task: ComputeTask
     ) -> {
diff --git a/src/service/aios_shell/aios_shell.py b/src/service/aios_shell/aios_shell.py
index 9b8731a..736be84 100644
--- a/src/service/aios_shell/aios_shell.py
+++ b/src/service/aios_shell/aios_shell.py
@@ -137,6 +137,7 @@ class AIOS_Shell:
             return False
         ComputeKernel.get_instance().add_compute_node(open_ai_node)
 
+
         if await AIStorage.get_instance().is_feature_enable("llama"):
             llama_ai_node = LocalLlama_ComputeNode()
             if await llama_ai_node.initial() is True:
@@ -160,12 +161,20 @@ class AIOS_Shell:
             #     logger.error("stability api node initial failed!")
             # ComputeKernel.get_instance().add_compute_node(stability_api_node)
 
-            local_sd_node = Local_Stability_ComputeNode.get_instance()
-            if await local_sd_node.initial() is True:
-                ComputeKernel.get_instance().add_compute_node(local_sd_node)
-            else:
-                logger.error("local stability node initial failed!")
-                await AIStorage.get_instance.set_feature_init_result("aigc",False)
+        local_sd_node = Local_Stability_ComputeNode.get_instance()
+        if await local_sd_node.initial() is True:
+            ComputeKernel.get_instance().add_compute_node(local_sd_node)
+        else:
+            logger.error("local stability node initial failed!")
+            await AIStorage.get_instance.set_feature_init_result("aigc",False)
+
+
+    
+        local_st_compute_node = LocalSentenceTransformer_ComputeNode()
+        if local_st_compute_node.initial() is not True:
+            logger.error("local sentence transformer node initial failed!")
+        else:
+        	ComputeKernel.get_instance().add_compute_node(local_st_compute_node)
 
 
         await ComputeKernel.get_instance().start()