diff --git a/metagpt/config2.py b/metagpt/config2.py
index a6aa62f6b..9c809e559 100644
--- a/metagpt/config2.py
+++ b/metagpt/config2.py
@@ -3,7 +3,7 @@
 """
 @Time    : 2024/1/4 01:25
 @Author  : alexanderwu
-@File    : llm_factory.py
+@File    : config2.py
 """
 import os
 from pathlib import Path
@@ -23,6 +23,8 @@ from metagpt.utils.yaml_model import YamlModel
 
 
 class CLIParams(BaseModel):
+    """CLI parameters"""
+
     project_path: str = ""
     project_name: str = ""
     inc: bool = False
@@ -32,12 +34,15 @@ class CLIParams(BaseModel):
 
     @model_validator(mode="after")
     def check_project_path(self):
+        """Check project_path and project_name"""
         if self.project_path:
             self.inc = True
             self.project_name = self.project_name or Path(self.project_path).name
 
 
 class Config(CLIParams, YamlModel):
+    """Configurations for MetaGPT"""
+
     # Key Parameters
     llm: Dict[str, LLMConfig] = Field(default_factory=Dict)
 
@@ -133,4 +138,21 @@ def merge_dict(dicts: Iterable[Dict]) -> Dict:
     return result
 
 
+class ConfigurableMixin:
+    """Mixin class for configurable objects"""
+
+    def __init__(self, config=None):
+        self._config = config
+
+    def try_set_parent_config(self, parent_config):
+        """Try to set parent config if not set"""
+        if self._config is None:
+            self._config = parent_config
+
+    @property
+    def config(self):
+        """Get config"""
+        return self._config
+
+
 config = Config.default()
diff --git a/metagpt/context.py b/metagpt/context.py
index 0ea5d6046..e396de7e1 100644
--- a/metagpt/context.py
+++ b/metagpt/context.py
@@ -9,6 +9,8 @@ import os
 from pathlib import Path
 from typing import Optional
 
+from pydantic import BaseModel, ConfigDict
+
 from metagpt.config2 import Config
 from metagpt.configs.llm_config import LLMType
 from metagpt.const import OPTIONS
@@ -18,28 +20,33 @@ from metagpt.utils.cost_manager import CostManager
 from metagpt.utils.git_repository import GitRepository
 
 
-class AttrDict:
-    """A dict-like object that allows access to keys as attributes."""
+class AttrDict(BaseModel):
+    """A dict-like object that allows access to keys as attributes, compatible with Pydantic."""
 
-    def __init__(self, d=None):
-        if d is None:
-            d = {}
-        self.__dict__["_dict"] = d
+    model_config = ConfigDict(extra="allow")
+
+    def __init__(self, **kwargs):
+        super().__init__(**kwargs)
+        self.__dict__.update(kwargs)
 
     def __getattr__(self, key):
-        return self._dict.get(key, None)
+        return self.__dict__.get(key, None)
 
     def __setattr__(self, key, value):
-        self._dict[key] = value
+        self.__dict__[key] = value
 
     def __delattr__(self, key):
-        if key in self._dict:
-            del self._dict[key]
+        if key in self.__dict__:
+            del self.__dict__[key]
         else:
             raise AttributeError(f"No such attribute: {key}")
 
 
-class Context:
+class Context(BaseModel):
+    """Env context for MetaGPT"""
+
+    model_config = ConfigDict(arbitrary_types_allowed=True)
+
     kwargs: AttrDict = AttrDict()
     config: Config = Config.default()
     git_repo: Optional[GitRepository] = None
@@ -82,14 +89,5 @@ class Context:
         return llm
 
 
-# Global context
+# Global context, not in Env
 context = Context()
-
-
-if __name__ == "__main__":
-    # print(context.model_dump_json(indent=4))
-    # print(context.config.get_openai_llm())
-    ad = AttrDict({"name": "John", "age": 30})
-
-    print(ad.name)  # Output: John
-    print(ad.height)  # Output: None (因为height不存在)
diff --git a/tests/metagpt/test_context.py b/tests/metagpt/test_context.py
new file mode 100644
index 000000000..d4f29e352
--- /dev/null
+++ b/tests/metagpt/test_context.py
@@ -0,0 +1,63 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+"""
+@Time    : 2024/1/9 13:52
+@Author  : alexanderwu
+@File    : test_context.py
+"""
+from metagpt.configs.llm_config import LLMType
+from metagpt.context import AttrDict, Context, context
+
+
+def test_attr_dict_1():
+    ad = AttrDict(name="John", age=30)
+    assert ad.name == "John"
+    assert ad.age == 30
+    assert ad.height is None
+
+
+def test_attr_dict_2():
+    ad = AttrDict(name="John", age=30)
+    ad.height = 180
+    assert ad.height == 180
+
+
+def test_attr_dict_3():
+    ad = AttrDict(name="John", age=30)
+    del ad.age
+    assert ad.age is None
+
+
+def test_attr_dict_4():
+    ad = AttrDict(name="John", age=30)
+    try:
+        del ad.weight
+    except AttributeError as e:
+        assert str(e) == "No such attribute: weight"
+
+
+def test_attr_dict_5():
+    ad = AttrDict.model_validate({"name": "John", "age": 30})
+    assert ad.name == "John"
+    assert ad.age == 30
+
+
+def test_context_1():
+    ctx = Context()
+    assert ctx.config is not None
+    assert ctx.git_repo is None
+    assert ctx.src_workspace is None
+    assert ctx.cost_manager is not None
+    assert ctx.options is not None
+
+
+def test_context_2():
+    llm = context.config.get_openai_llm()
+    assert llm is not None
+    assert llm.api_type == LLMType.OPENAI
+
+    kwargs = context.kwargs
+    assert kwargs is not None
+
+    kwargs.test_key = "test_value"
+    assert kwargs.test_key == "test_value"