diff --git a/.gitignore b/.gitignore
index 39624a7..2447ad1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -192,3 +192,18 @@ cython_debug/
 #  refer to https://docs.cursor.com/context/ignore-files
 .cursorignore
 .cursorindexingignore
+
+# sphinx docs
+_build/
+
+
+output/
+**/temp.py
+
+# coverage file
+.coverage*
+coverage.xml
+
+
+.env
+*.egg-info/
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index e268be6..72ed5ce 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -40,11 +40,11 @@ repos:
           - mdformat_frontmatter
           - linkify-it-py
         exclude: '^tests/.*/assets/'
-  - repo: https://github.com/myint/docformatter
-    rev: v1.3.1
-    hooks:
-      - id: docformatter
-        args: [ "--in-place", "--wrap-descriptions", "119" ]
+#  - repo: https://github.com/myint/docformatter
+#    rev: v1.3.1
+#    hooks:
+#      - id: docformatter
+#        args: [ "--in-place", "--wrap-descriptions", "119" ]
   - repo: local
     hooks:
       - id: clear-jupyter-notebook-output
diff --git a/docs/.gitkeep b/docs/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/realcrawl/__init__.py b/realcrawl/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/realcrawl/cfg.py b/realcrawl/cfg.py
new file mode 100644
index 0000000..a15e8d8
--- /dev/null
+++ b/realcrawl/cfg.py
@@ -0,0 +1,62 @@
+"""统一的配置读取函数
+配置文件位于
+1. 环境变量 REAL_CRAWL_CONFIG_PATH
+2. ~/.realcrawl/.realcrawl.jsonc
+"""
+
+import os
+
+import commentjson as json
+from loguru import logger
+
+from realcrawl.exception.base import ConfigFileNotFoundException
+
+
+def load_config(suppress_error: bool = False) -> dict:
+    """Load the configuration file for the web kit. First try to read the
+    configuration file from the environment variable REAL_CRAWL_CONFIG_PATH. If
+    the environment variable is not set, use the default configuration file
+    path ~/.realcrawl/.realcrawl.jsonc. If the configuration file does not exist, raise
+    an exception.
+
+    Raises:
+        ConfigFileNotFoundException: REAL_CRAWL_CONFIG_PATH points to a non-exist file
+        ConfigFileNotFoundException: cfg_path does not exist
+
+    Returns:
+        config(dict): The configuration dictionary
+    """
+    # 首先从环境变量LLM_WEB_KIT_CFG_PATH 读取配置文件的位置
+    # 如果没有配置，就使用默认的配置文件位置
+    # 如果配置文件不存在，就抛出异常
+    env_cfg_path = os.getenv('REAL_CRAWL_CONFIG_PATH')
+    if env_cfg_path:
+        cfg_path = env_cfg_path
+        if not os.path.exists(cfg_path):
+            if suppress_error:
+                return {}
+
+            logger.warning(
+                f'environment variable REAL_CRAWL_CONFIG_PATH points to a non-exist file: {cfg_path}'
+            )
+            raise ConfigFileNotFoundException(
+                f'environment variable REAL_CRAWL_CONFIG_PATH points to a non-exist file: {cfg_path}'
+            )
+    else:
+        cfg_path = os.path.expanduser('~/.realcrawl/.realcrawl.jsonc')
+        if not os.path.exists(cfg_path):
+            if suppress_error:
+                return {}
+
+            logger.warning(
+                f'{cfg_path} does not exist, please create one or set environment variable REAL_CRAWL_CONFIG_PATH to a valid file path'
+            )
+            raise ConfigFileNotFoundException(
+                f'{cfg_path} does not exist, please create one or set environment variable REAL_CRAWL_CONFIG_PATH to a valid file path'
+            )
+
+    # 读取配置文件
+    with open(cfg_path, 'r', encoding='utf-8') as f:
+        config = json.load(f)
+
+    return config
diff --git a/realcrawl/crawl/cli/__init__.py b/realcrawl/crawl/cli/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/realcrawl/exception/__init__.py b/realcrawl/exception/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/realcrawl/exception/base.py b/realcrawl/exception/base.py
new file mode 100644
index 0000000..22d9d74
--- /dev/null
+++ b/realcrawl/exception/base.py
@@ -0,0 +1,86 @@
+import inspect
+from pathlib import Path
+
+import commentjson as json
+
+
+class ErrorMsg:
+    """Error message manager class."""
+    _errors = {}
+
+    @classmethod
+    def _load_errors(cls):
+        """Load error codes and messages from JSON file."""
+        exception_defs_file_path = Path(__file__).parent / 'exception.jsonc'
+        with open(exception_defs_file_path, 'r', encoding='utf-8') as file:
+            jso = json.load(file)
+            for module, module_defs in jso.items():
+                for err_name, err_info in module_defs.items():
+                    err_code = err_info['code']
+                    cls._errors[str(err_code)] = {
+                        'message': err_info['message'],
+                        'module': module,
+                        'error_name': err_name,
+                    }
+
+    @classmethod
+    def get_error_message(cls, error_code: int):
+        # 根据错误代码获取错误消息
+        if str(error_code) not in cls._errors:
+            return f'unknown error code {error_code}'
+        return cls._errors[str(error_code)]['message']
+
+    @classmethod
+    def get_error_code(cls, module: str, error_name: str) -> int:
+        """根据模块名和错误名获取错误代码."""
+        for code, info in cls._errors.items():
+            if info['module'] == module and info['error_name'] == error_name:
+                return int(code)
+        raise ValueError(f'error code not found: module={module}, error_name={error_name}')
+
+
+ErrorMsg._load_errors()
+
+
+class RealCrawlBaseException(Exception):
+    """Base exception class for realcrawl."""
+
+    def __init__(self, custom_message: str | None = None, error_code: int | None = None):
+        if error_code is None:
+            error_code = ErrorMsg.get_error_code('realcrawlBase', 'realcrawlBaseException')
+
+        self.error_code = error_code
+        self.message = ErrorMsg.get_error_message(self.error_code)
+        self.custom_message = custom_message
+        self.dataset_name = ''
+        super().__init__(self.message)
+        frame = inspect.currentframe().f_back
+        self.__py_filename = frame.f_code.co_filename
+        self.__py_file_line_number = frame.f_lineno
+
+    def __str__(self):
+        return (
+            f'{self.__py_filename}: {self.__py_file_line_number}#{self.error_code}#{self.message}#{self.custom_message}'
+        )
+
+
+##############################################################################
+#
+#  Config Exceptions
+#
+##############################################################################
+
+class ConfigBaseException(RealCrawlBaseException):
+    """Base exception class for Config."""
+    def __init__(self, custom_message: str | None = None, error_code: int | None = None):
+        if error_code is None:
+            error_code = ErrorMsg.get_error_code('Config', 'ConfigBaseException')
+        super().__init__(custom_message, error_code)
+
+
+class ConfigFileNotFoundException(ConfigBaseException):
+    """Config file not found exception."""
+    def __init__(self, custom_message: str | None = None, error_code: int | None = None):
+        if error_code is None:
+            error_code = ErrorMsg.get_error_code('Config', 'ConfigFileNotFoundException')
+        super().__init__(custom_message, error_code)
diff --git a/realcrawl/exception/exception.jsonc b/realcrawl/exception/exception.jsonc
new file mode 100644
index 0000000..8c694f0
--- /dev/null
+++ b/realcrawl/exception/exception.jsonc
@@ -0,0 +1,21 @@
+{
+    // Base基础异常 (10000000)
+    "realcrawlBase": {
+      "realcrawlBaseException": {
+        "code": 10000000,
+        "message": "realcrawl base exception"
+      }
+    },
+
+    // 配置相关异常 (20000000)
+    "Config": {
+      "ConfigBaseException": {
+        "code": 20000000,
+        "message": "Config base exception"
+      },
+      "ConfigFileNotFoundException": {
+        "code": 21000000,
+        "message": "Config file not found exception"
+      }
+    }
+  }
diff --git a/realcrawl/extract/__init__.py b/realcrawl/extract/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/realcrawl/gui/__init__.py b/realcrawl/gui/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/realcrawl/gui/crawl_mgr.py b/realcrawl/gui/crawl_mgr.py
new file mode 100644
index 0000000..e69de29
diff --git a/realcrawl/libs/__init__.py b/realcrawl/libs/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/realcrawl/libs/common.py b/realcrawl/libs/common.py
new file mode 100644
index 0000000..e69de29
diff --git a/realcrawl/log.py b/realcrawl/log.py
new file mode 100644
index 0000000..b4e75c2
--- /dev/null
+++ b/realcrawl/log.py
@@ -0,0 +1,50 @@
+import sys
+import tempfile
+
+from loguru import logger
+
+from realcrawl.cfg import load_config
+
+
+def init_logger(config: dict = None):
+    """按照配置初始化日志系统."""
+    tempfile.gettempdir()
+    default_log_format = '{time:YYYY-MM-DD HH:mm:ss} | {level} | {name}:{function}:{line} - {message}'
+
+    logger_cfg = []
+    if config:
+        logger_cfg = config.get('logger', [])
+
+    if not logger_cfg:
+        logger_cfg = load_config(suppress_error=True).get('logger', [])
+
+    if not logger_cfg:
+        return logger
+
+    # 如果有关于日志的配置，则按照配置初始化日志系统
+    logger.remove()  # 移除默认的日志处理器
+    for logger_configs in logger_cfg:
+        to = logger_configs.get('to', None)
+        if not to:
+            continue
+        # 检查 to 是否指向控制台
+        level = logger_configs.get('log-level', 'INFO')
+        log_format = logger_configs.get('log-format', default_log_format)
+        enable = logger_configs.get('enable', True)
+        if enable:
+            if to == 'sys.stdout':
+                to = sys.stdout  # 使用 sys.stdout 对象而不是字符串
+                logger.add(to, level=level, format=log_format)
+                continue
+            else:
+                rotation = logger_configs.get('rotation', '1 days')
+                retention = logger_configs.get('retention', '1 days')
+
+                logger.add(to, rotation=rotation, retention=retention, level=level, format=log_format, enqueue=True)
+
+    return logger
+
+
+init_logger()
+
+mylogger = logger
diff --git a/realcrawl/mcp/__init__.py b/realcrawl/mcp/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/realcrawl/mcp/mcp-server.py b/realcrawl/mcp/mcp-server.py
new file mode 100644
index 0000000..e69de29
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..f000e42
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,2 @@
+-r requirements/runtime.txt
+-r requirements/dev.txt
diff --git a/requirements/dev.txt b/requirements/dev.txt
new file mode 100644
index 0000000..e161b1d
--- /dev/null
+++ b/requirements/dev.txt
@@ -0,0 +1,7 @@
+func_timeout==4.3.5
+nbstripout==0.8.1
+pre-commit==3.8.0
+pytest==8.3.3
+# coverage tools
+pytest-cov==6.0.0
+pytest-xdist==3.6.1
diff --git a/requirements/runtime.txt b/requirements/runtime.txt
new file mode 100644
index 0000000..8c197fd
--- /dev/null
+++ b/requirements/runtime.txt
@@ -0,0 +1 @@
+commentjson==0.9.0
diff --git a/tests/realcrawl/test_logger.py b/tests/realcrawl/test_logger.py
new file mode 100644
index 0000000..c55301b
--- /dev/null
+++ b/tests/realcrawl/test_logger.py
@@ -0,0 +1,76 @@
+import os
+import unittest
+from datetime import datetime as dt
+
+from realcrawl.log import init_logger
+
+
+class TestLogger(unittest.TestCase):
+
+    def setUp(self):
+        self.config = {
+            'logger': [{
+                'to': 'sys.stdout',
+                'log-level': 'DEBUG',
+                'log-format': '{time:YYYY-MM-DD HH:mm:ss} | {level} | {name}:{function}:{line} - {message}',
+            }, {
+                'to': '/tmp/logs/test-{time:YYYY-MM-DD}.log',
+                'rotation': '1 day',
+                'retention': '10 days',
+                'log-level': 'INFO'
+            }, {
+                'to': '/tmp/logs/error-{time:YYYY-MM-DD}.log',
+                'rotation': '1 day',
+                'retention': '10 days',
+                'log-level': 'ERROR'
+            }]
+        }
+        self.info_log_file = '/tmp/logs/test-{time}.log'.format(time=dt.now().strftime('%Y-%m-%d'))
+        self.error_log_file = '/tmp/logs/error-{time}.log'.format(time=dt.now().strftime('%Y-%m-%d'))
+
+    def tearDown(self):
+        # 删除生成的日志文件
+        try:
+            if os.path.exists(self.info_log_file):
+                os.remove(self.info_log_file)
+            if os.path.exists(self.error_log_file):
+                os.remove(self.error_log_file)
+        except Exception:
+            pass
+
+    def test_init_logger_with_config(self):
+        log = init_logger(self.config)
+        self.assertIsNotNone(log)
+        self.assertEqual(len(log._core.handlers), 3)
+
+    def test_log_file_content(self):
+        log = init_logger(self.config)
+        log.debug('This is a debug message')
+        log.info('This is an info message')
+        log.warning('This is a warning message')
+        log.error('This is an error message')
+        log.complete()
+
+        # 检查info日志文件是否存在
+        self.assertTrue(os.path.exists(self.info_log_file))
+
+        # 检查info日志文件内容
+        with open(self.info_log_file, 'r') as f:
+            lines = f.readlines()
+            self.assertGreaterEqual(len(lines), 3)
+            self.assertIn('INFO', lines[0])
+            self.assertIn('This is an info message', lines[0])
+            self.assertIn('WARNING', lines[1])
+            self.assertIn('This is a warning message', lines[1])
+            self.assertIn('ERROR', lines[2])
+            self.assertIn('This is an error message', lines[2])
+
+        # 检查error日志文件是否存在
+        self.assertTrue(os.path.exists(self.error_log_file))
+
+        # 检查error日志文件内容
+        with open(self.error_log_file, 'r') as f:
+            lines = f.readlines()
+            self.assertGreaterEqual(len(lines), 1)
+            self.assertIn('ERROR', lines[0])
+            self.assertIn('This is an error message', lines[0])