diff --git a/docs/resources/tasks.mp4 b/docs/resources/tasks.mp4
deleted file mode 100644
index 89daad929..000000000
Binary files a/docs/resources/tasks.mp4 and /dev/null differ
diff --git a/tests/metagpt/utils/test_flatten_json_object.py b/tests/metagpt/utils/test_flatten_json_object.py
index c4324f694..25d3ddb1e 100644
--- a/tests/metagpt/utils/test_flatten_json_object.py
+++ b/tests/metagpt/utils/test_flatten_json_object.py
@@ -1,23 +1,7 @@
 import unittest
 import json5
 
-def flatten_json_object(obj, parent_key='', sep=', '):
-    if isinstance(obj, str):
-        return dict([("value", obj)])
-    
-    if isinstance(obj, list):
-        return dict([("value", sep.join(str(v) for v in obj))])
-    
-    items = []
-    for key, value in obj.items():
-        new_key = f"{parent_key}{sep}{key}" if parent_key else key
-        if isinstance(value, dict):
-            items.extend(flatten_json_object(value, new_key, sep=sep).items())
-        elif isinstance(value, list):
-            items.append((new_key, sep.join(str(v) for v in value)))
-        else:
-            items.append((new_key, value))
-    return dict(items)
+from metagpt.utils.resp_parse import flatten_json_object
 
 class TestFlattenJsonObject(unittest.TestCase):
     def test_flatten_json_object(self):
diff --git a/tests/metagpt/utils/test_flatten_json_structure_json.py b/tests/metagpt/utils/test_flatten_json_structure_json.py
index ba260984b..6d2732714 100644
--- a/tests/metagpt/utils/test_flatten_json_structure_json.py
+++ b/tests/metagpt/utils/test_flatten_json_structure_json.py
@@ -1,45 +1,6 @@
 import unittest
-import json5
-import re
 
-
-def flatten_json_object(obj, parent_key='', sep=', '):
-    if isinstance(obj, str):
-        return dict([("value", obj)])
-    
-    if isinstance(obj, list):
-        return dict([("value", sep.join(str(v) for v in obj))])
-    
-    items = []
-    for key, value in obj.items():
-        new_key = f"{parent_key}{sep}{key}" if parent_key else key
-        if isinstance(value, dict):
-            items.extend(flatten_json_object(value, new_key, sep=sep).items())
-        elif isinstance(value, list):
-            items.append((new_key, sep.join(str(v) for v in value)))
-        else:
-            items.append((new_key, value))
-    return dict(items)
-
-def flatten_json_structure(json_array):
-    if (isinstance(json_array, list) and len(json_array) == 1 and not isinstance(json_array[0], str)):
-        return flatten_json_structure(json_array[0])
-    
-    if (isinstance(json_array, dict) and len(json_array.values()) == 1 and not isinstance(list(json_array.values())[0],
-                                                                                          str)):
-        return flatten_json_structure(list(json_array.values())[0])
-    
-    flattened_json_array = []
-    
-    if (isinstance(json_array, dict)):
-        json_array = json_array.values()
-    
-    for json_object in json_array:
-        flattened_dict = flatten_json_object(json_object)
-        flattened_values = ", ".join(str(v) for v in flattened_dict.values())
-        flattened_json_array.append(flattened_values)
-    
-    return flattened_json_array
+from metagpt.utils.resp_parse import flatten_json_structure
 
 class TestFlattenJson(unittest.TestCase):
     def test_flatten_json_structure(self):
diff --git a/tests/metagpt/utils/test_try_parse_json.py b/tests/metagpt/utils/test_try_parse_json.py
index b3b205557..54919a31d 100644
--- a/tests/metagpt/utils/test_try_parse_json.py
+++ b/tests/metagpt/utils/test_try_parse_json.py
@@ -1,35 +1,6 @@
 import unittest
-import json5
-import re
 
-def try_parse_json(input_text):
-    input_text.index
-    start_index_brackets = input_text.find('[')
-    end_index_brackets = input_text.rfind(']')
-    start_index_curly = input_text.find('{')
-    end_index_curly = input_text.rfind('}')
-    
-    start_index = start_index_brackets
-    end_index = end_index_brackets
-    
-    if (start_index_curly != -1 and (start_index_curly < start_index_brackets or start_index_brackets < 0)):
-        start_index = start_index_curly
-        end_index = end_index_curly
-    
-    if start_index >= 0 and end_index > 0:
-        json_string = input_text[start_index:end_index + 1]
-        json_string = re.sub(r'\}[\s]*\{', '}, {', json_string)
-        json_string = re.sub(r'\][\s]*\[', '], [', json_string)
-        json_string = re.sub(r'"[\s]*"', '", "', json_string)
-        
-        try:
-            json_object = json5.loads(json_string)
-        except ValueError:
-            json_object = json5.loads(f"[{json_string}]")
-        
-        return json_object
-    
-    raise Exception("No JSON object found in input text.")
+from metagpt.utils.resp_parse import try_parse_json
 
 
 class TestTryParseJson(unittest.TestCase):
@@ -56,3 +27,4 @@ class TestTryParseJson(unittest.TestCase):
 
 if __name__ == '__main__':
     unittest.main()
+    try_parse_json('{"a": [ jjj}')
\ No newline at end of file