diff --git a/nodes/chunk_and_embedding.py b/nodes/chunk_and_embedding.py
index f55ab1e..28372c9 100644
--- a/nodes/chunk_and_embedding.py
+++ b/nodes/chunk_and_embedding.py
@@ -119,7 +119,21 @@ def main(scrape_json: list, DASHSCOPE_API_KEY: str) -> dict:
             "chunk_index": idx,
             "embedding": vectors[idx]
         })
-    
+    '''
+    JSON 格式
+    results: 
+        [
+            {
+                "source_url": "https://example.com",
+                "title": "Example Title",
+                "content": "Example chunk content",
+                "chunk_index": 0,
+                "embedding": [0.123, 0.456, ...]
+            },
+            ...
+        ]
+    '''
     return {
-        "results": result_list
+        "results": result_list,
+        "len_chunks": len(chunks)
     }
diff --git a/nodes/iteration_output.py b/nodes/iteration_output.py
new file mode 100644
index 0000000..3b41f10
--- /dev/null
+++ b/nodes/iteration_output.py
@@ -0,0 +1,16 @@
+
+def main(iteration_output: dict, url: str, len_chunks: float, body: str, status_code: float):
+    '''
+    迭代器运行结果记录
+    iteration_output: 迭代器运行结果记录
+    url: 待处理的URL
+    len_chunks: 分块后的文本块数量
+    body: 从URL获取的响应体
+    status_code: 从URL获取的响应状态码
+    '''
+    if iteration_output is None:
+        iteration_output = {}
+    
+    return {
+        "result": arg1 + arg2,
+    }
diff --git a/nodes/parse_pending_urls.py b/nodes/parse_pending_urls.py
index bcd6357..b830ce4 100644
--- a/nodes/parse_pending_urls.py
+++ b/nodes/parse_pending_urls.py
@@ -16,5 +16,6 @@ def main(status_code: float, body: str):
     urls = body["data"]["urls"]
 
     return {
-        "urls": urls
+        "urls": urls,
+        "iteration_output": {} # 迭代器运行结果记录，用于传入给迭代器进行记录运行情况 
     }