From 613515836d45c53e44efe46f0b945f95c7bcb67d Mon Sep 17 00:00:00 2001
From: geekan <geekan@foxmail.com>
Date: Tue, 9 Jan 2024 22:04:49 +0800
Subject: [PATCH] refine code

---
 metagpt/actions/action.py                | 23 +++++------
 metagpt/actions/debug_error.py           |  4 +-
 metagpt/actions/design_api.py            |  2 +-
 metagpt/actions/design_api_review.py     |  2 +-
 metagpt/actions/execute_task.py          |  2 +-
 metagpt/actions/invoice_ocr.py           |  6 +--
 metagpt/actions/prepare_documents.py     |  6 +--
 metagpt/actions/project_management.py    |  2 +-
 metagpt/actions/rebuild_class_view.py    |  6 +--
 metagpt/actions/rebuild_sequence_view.py |  2 +-
 metagpt/actions/research.py              |  6 +--
 metagpt/actions/run_code.py              |  4 +-
 metagpt/actions/search_and_summarize.py  | 23 ++++-------
 metagpt/actions/summarize_code.py        |  4 +-
 metagpt/actions/talk_action.py           |  6 +--
 metagpt/actions/write_code.py            |  6 +--
 metagpt/actions/write_code_review.py     |  6 +--
 metagpt/actions/write_docstring.py       |  2 +-
 metagpt/actions/write_prd_review.py      |  2 +-
 metagpt/actions/write_teaching_plan.py   |  2 +-
 metagpt/actions/write_test.py            |  2 +-
 metagpt/config.py                        |  4 +-
 metagpt/config2.py                       | 21 ----------
 metagpt/context.py                       | 52 ++++++++++++++++++++++++
 metagpt/roles/engineer.py                | 16 ++++----
 metagpt/roles/role.py                    | 16 ++------
 tests/metagpt/test_config.py             |  5 ++-
 27 files changed, 123 insertions(+), 109 deletions(-)

diff --git a/metagpt/actions/action.py b/metagpt/actions/action.py
index cdedfcd64..cabab784f 100644
--- a/metagpt/actions/action.py
+++ b/metagpt/actions/action.py
@@ -12,10 +12,8 @@ from typing import Optional, Union
 
 from pydantic import BaseModel, ConfigDict, Field, model_validator
 
-import metagpt
 from metagpt.actions.action_node import ActionNode
-from metagpt.config2 import ConfigMixin
-from metagpt.context import Context
+from metagpt.context import ContextMixin
 from metagpt.llm import LLM
 from metagpt.provider.base_llm import BaseLLM
 from metagpt.schema import (
@@ -28,44 +26,43 @@ from metagpt.schema import (
 from metagpt.utils.file_repository import FileRepository
 
 
-class Action(SerializationMixin, ConfigMixin, BaseModel):
+class Action(SerializationMixin, ContextMixin, BaseModel):
     model_config = ConfigDict(arbitrary_types_allowed=True, exclude=["llm"])
 
     name: str = ""
     llm: BaseLLM = Field(default_factory=LLM, exclude=True)
-    context: Union[dict, CodingContext, CodeSummarizeContext, TestingContext, RunCodeContext, str, None] = ""
+    i_context: Union[dict, CodingContext, CodeSummarizeContext, TestingContext, RunCodeContext, str, None] = ""
     prefix: str = ""  # aask*时会加上prefix，作为system_message
     desc: str = ""  # for skill manager
     node: ActionNode = Field(default=None, exclude=True)
-    g_context: Optional[Context] = Field(default=metagpt.context.context, exclude=True)
 
     @property
     def git_repo(self):
-        return self.g_context.git_repo
+        return self.context.git_repo
 
     @property
     def file_repo(self):
-        return FileRepository(self.g_context.git_repo)
+        return FileRepository(self.context.git_repo)
 
     @property
     def src_workspace(self):
-        return self.g_context.src_workspace
+        return self.context.src_workspace
 
     @property
     def prompt_schema(self):
-        return self.g_context.config.prompt_schema
+        return self.config.prompt_schema
 
     @property
     def project_name(self):
-        return self.g_context.config.project_name
+        return self.config.project_name
 
     @project_name.setter
     def project_name(self, value):
-        self.g_context.config.project_name = value
+        self.config.project_name = value
 
     @property
     def project_path(self):
-        return self.g_context.config.project_path
+        return self.config.project_path
 
     @model_validator(mode="before")
     @classmethod
diff --git a/metagpt/actions/debug_error.py b/metagpt/actions/debug_error.py
index aa84d1f11..3647640c0 100644
--- a/metagpt/actions/debug_error.py
+++ b/metagpt/actions/debug_error.py
@@ -47,7 +47,7 @@ Now you should start rewriting the code:
 
 
 class DebugError(Action):
-    context: RunCodeContext = Field(default_factory=RunCodeContext)
+    i_context: RunCodeContext = Field(default_factory=RunCodeContext)
 
     async def run(self, *args, **kwargs) -> str:
         output_doc = await self.file_repo.get_file(
@@ -63,7 +63,7 @@ class DebugError(Action):
 
         logger.info(f"Debug and rewrite {self.context.test_filename}")
         code_doc = await self.file_repo.get_file(
-            filename=self.context.code_filename, relative_path=self.g_context.src_workspace
+            filename=self.context.code_filename, relative_path=self.context.src_workspace
         )
         if not code_doc:
             return ""
diff --git a/metagpt/actions/design_api.py b/metagpt/actions/design_api.py
index b89ec7877..3e978f823 100644
--- a/metagpt/actions/design_api.py
+++ b/metagpt/actions/design_api.py
@@ -37,7 +37,7 @@ NEW_REQ_TEMPLATE = """
 
 class WriteDesign(Action):
     name: str = ""
-    context: Optional[str] = None
+    i_context: Optional[str] = None
     desc: str = (
         "Based on the PRD, think about the system design, and design the corresponding APIs, "
         "data structures, library tables, processes, and paths. Please provide your design, feedback "
diff --git a/metagpt/actions/design_api_review.py b/metagpt/actions/design_api_review.py
index fb1b92d85..ccd01a4c3 100644
--- a/metagpt/actions/design_api_review.py
+++ b/metagpt/actions/design_api_review.py
@@ -13,7 +13,7 @@ from metagpt.actions.action import Action
 
 class DesignReview(Action):
     name: str = "DesignReview"
-    context: Optional[str] = None
+    i_context: Optional[str] = None
 
     async def run(self, prd, api_design):
         prompt = (
diff --git a/metagpt/actions/execute_task.py b/metagpt/actions/execute_task.py
index 4ae4ee17b..1cc3bd699 100644
--- a/metagpt/actions/execute_task.py
+++ b/metagpt/actions/execute_task.py
@@ -13,7 +13,7 @@ from metagpt.schema import Message
 
 class ExecuteTask(Action):
     name: str = "ExecuteTask"
-    context: list[Message] = []
+    i_context: list[Message] = []
 
     async def run(self, *args, **kwargs):
         pass
diff --git a/metagpt/actions/invoice_ocr.py b/metagpt/actions/invoice_ocr.py
index 36570097a..a3406ff65 100644
--- a/metagpt/actions/invoice_ocr.py
+++ b/metagpt/actions/invoice_ocr.py
@@ -41,7 +41,7 @@ class InvoiceOCR(Action):
     """
 
     name: str = "InvoiceOCR"
-    context: Optional[str] = None
+    i_context: Optional[str] = None
 
     @staticmethod
     async def _check_file_type(file_path: Path) -> str:
@@ -132,7 +132,7 @@ class GenerateTable(Action):
     """
 
     name: str = "GenerateTable"
-    context: Optional[str] = None
+    i_context: Optional[str] = None
     llm: BaseLLM = Field(default_factory=LLM)
     language: str = "ch"
 
@@ -177,7 +177,7 @@ class ReplyQuestion(Action):
     """
 
     name: str = "ReplyQuestion"
-    context: Optional[str] = None
+    i_context: Optional[str] = None
     llm: BaseLLM = Field(default_factory=LLM)
     language: str = "ch"
 
diff --git a/metagpt/actions/prepare_documents.py b/metagpt/actions/prepare_documents.py
index ae5aaf2b5..8a9e78b2a 100644
--- a/metagpt/actions/prepare_documents.py
+++ b/metagpt/actions/prepare_documents.py
@@ -22,11 +22,11 @@ class PrepareDocuments(Action):
     """PrepareDocuments Action: initialize project folder and add new requirements to docs/requirements.txt."""
 
     name: str = "PrepareDocuments"
-    context: Optional[str] = None
+    i_context: Optional[str] = None
 
     @property
     def config(self):
-        return self.g_context.config
+        return self.context.config
 
     def _init_repo(self):
         """Initialize the Git environment."""
@@ -39,7 +39,7 @@ class PrepareDocuments(Action):
             shutil.rmtree(path)
         self.config.project_path = path
         self.config.project_name = path.name
-        self.g_context.git_repo = GitRepository(local_path=path, auto_init=True)
+        self.context.git_repo = GitRepository(local_path=path, auto_init=True)
 
     async def run(self, with_messages, **kwargs):
         """Create and initialize the workspace folder, initialize the Git environment."""
diff --git a/metagpt/actions/project_management.py b/metagpt/actions/project_management.py
index b40da824f..bb8141a74 100644
--- a/metagpt/actions/project_management.py
+++ b/metagpt/actions/project_management.py
@@ -36,7 +36,7 @@ NEW_REQ_TEMPLATE = """
 
 class WriteTasks(Action):
     name: str = "CreateTasks"
-    context: Optional[str] = None
+    i_context: Optional[str] = None
 
     async def run(self, with_messages):
         system_design_file_repo = self.git_repo.new_file_repository(SYSTEM_DESIGN_FILE_REPO)
diff --git a/metagpt/actions/rebuild_class_view.py b/metagpt/actions/rebuild_class_view.py
index 5128b9fee..876beccec 100644
--- a/metagpt/actions/rebuild_class_view.py
+++ b/metagpt/actions/rebuild_class_view.py
@@ -32,13 +32,13 @@ class RebuildClassView(Action):
     async def run(self, with_messages=None, format=CONFIG.prompt_schema):
         graph_repo_pathname = CONFIG.git_repo.workdir / GRAPH_REPO_FILE_REPO / CONFIG.git_repo.workdir.name
         graph_db = await DiGraphRepository.load_from(str(graph_repo_pathname.with_suffix(".json")))
-        repo_parser = RepoParser(base_directory=Path(self.context))
+        repo_parser = RepoParser(base_directory=Path(self.i_context))
         # use pylint
-        class_views, relationship_views, package_root = await repo_parser.rebuild_class_views(path=Path(self.context))
+        class_views, relationship_views, package_root = await repo_parser.rebuild_class_views(path=Path(self.i_context))
         await GraphRepository.update_graph_db_with_class_views(graph_db, class_views)
         await GraphRepository.update_graph_db_with_class_relationship_views(graph_db, relationship_views)
         # use ast
-        direction, diff_path = self._diff_path(path_root=Path(self.context).resolve(), package_root=package_root)
+        direction, diff_path = self._diff_path(path_root=Path(self.i_context).resolve(), package_root=package_root)
         symbols = repo_parser.generate_symbols()
         for file_info in symbols:
             # Align to the same root directory in accordance with `class_views`.
diff --git a/metagpt/actions/rebuild_sequence_view.py b/metagpt/actions/rebuild_sequence_view.py
index 865050c93..bc128d8b0 100644
--- a/metagpt/actions/rebuild_sequence_view.py
+++ b/metagpt/actions/rebuild_sequence_view.py
@@ -41,7 +41,7 @@ class RebuildSequenceView(Action):
 
     async def _rebuild_sequence_view(self, entry, graph_db):
         filename = entry.subject.split(":", 1)[0]
-        src_filename = RebuildSequenceView._get_full_filename(root=self.context, pathname=filename)
+        src_filename = RebuildSequenceView._get_full_filename(root=self.i_context, pathname=filename)
         content = await aread(filename=src_filename, encoding="utf-8")
         content = f"```python\n{content}\n```\n\n---\nTranslate the code above into Mermaid Sequence Diagram."
         data = await self.llm.aask(
diff --git a/metagpt/actions/research.py b/metagpt/actions/research.py
index 90b08cb6a..84067ad92 100644
--- a/metagpt/actions/research.py
+++ b/metagpt/actions/research.py
@@ -81,7 +81,7 @@ class CollectLinks(Action):
     """Action class to collect links from a search engine."""
 
     name: str = "CollectLinks"
-    context: Optional[str] = None
+    i_context: Optional[str] = None
     desc: str = "Collect links from a search engine."
 
     search_engine: SearchEngine = Field(default_factory=SearchEngine)
@@ -177,7 +177,7 @@ class WebBrowseAndSummarize(Action):
     """Action class to explore the web and provide summaries of articles and webpages."""
 
     name: str = "WebBrowseAndSummarize"
-    context: Optional[str] = None
+    i_context: Optional[str] = None
     llm: BaseLLM = Field(default_factory=LLM)
     desc: str = "Explore the web and provide summaries of articles and webpages."
     browse_func: Union[Callable[[list[str]], None], None] = None
@@ -248,7 +248,7 @@ class ConductResearch(Action):
     """Action class to conduct research and generate a research report."""
 
     name: str = "ConductResearch"
-    context: Optional[str] = None
+    i_context: Optional[str] = None
     llm: BaseLLM = Field(default_factory=LLM)
 
     def __init__(self, **kwargs):
diff --git a/metagpt/actions/run_code.py b/metagpt/actions/run_code.py
index 0d42308c1..8fdda0a0d 100644
--- a/metagpt/actions/run_code.py
+++ b/metagpt/actions/run_code.py
@@ -76,7 +76,7 @@ standard errors:
 
 class RunCode(Action):
     name: str = "RunCode"
-    context: RunCodeContext = Field(default_factory=RunCodeContext)
+    i_context: RunCodeContext = Field(default_factory=RunCodeContext)
 
     @classmethod
     async def run_text(cls, code) -> Tuple[str, str]:
@@ -93,7 +93,7 @@ class RunCode(Action):
         additional_python_paths = [str(path) for path in additional_python_paths]
 
         # Copy the current environment variables
-        env = self.g_context.new_environ()
+        env = self.context.new_environ()
 
         # Modify the PYTHONPATH environment variable
         additional_python_paths = [working_directory] + additional_python_paths
diff --git a/metagpt/actions/search_and_summarize.py b/metagpt/actions/search_and_summarize.py
index 39ca23df5..59b35cd58 100644
--- a/metagpt/actions/search_and_summarize.py
+++ b/metagpt/actions/search_and_summarize.py
@@ -8,10 +8,9 @@
 from typing import Any, Optional
 
 import pydantic
-from pydantic import Field, model_validator
+from pydantic import model_validator
 
 from metagpt.actions import Action
-from metagpt.config import Config
 from metagpt.logs import logger
 from metagpt.schema import Message
 from metagpt.tools import SearchEngineType
@@ -106,28 +105,22 @@ You are a member of a professional butler team and will provide helpful suggesti
 class SearchAndSummarize(Action):
     name: str = ""
     content: Optional[str] = None
-    config: None = Field(default_factory=Config)
     engine: Optional[SearchEngineType] = None
     search_func: Optional[Any] = None
     search_engine: SearchEngine = None
     result: str = ""
 
-    @model_validator(mode="before")
-    @classmethod
-    def validate_engine_and_run_func(cls, values):
-        engine = values.get("engine")
-        search_func = values.get("search_func")
-        config = Config()
-
-        if engine is None:
-            engine = config.search_engine
+    @model_validator(mode="after")
+    def validate_engine_and_run_func(self):
+        if self.engine is None:
+            self.engine = self.config.search_engine
         try:
-            search_engine = SearchEngine(engine=engine, run_func=search_func)
+            search_engine = SearchEngine(engine=self.engine, run_func=self.search_func)
         except pydantic.ValidationError:
             search_engine = None
 
-        values["search_engine"] = search_engine
-        return values
+        self.search_engine = search_engine
+        return self
 
     async def run(self, context: list[Message], system_text=SEARCH_AND_SUMMARIZE_SYSTEM) -> str:
         if self.search_engine is None:
diff --git a/metagpt/actions/summarize_code.py b/metagpt/actions/summarize_code.py
index 948eceab2..690d5c77b 100644
--- a/metagpt/actions/summarize_code.py
+++ b/metagpt/actions/summarize_code.py
@@ -90,7 +90,7 @@ flowchart TB
 
 class SummarizeCode(Action):
     name: str = "SummarizeCode"
-    context: CodeSummarizeContext = Field(default_factory=CodeSummarizeContext)
+    i_context: CodeSummarizeContext = Field(default_factory=CodeSummarizeContext)
 
     @retry(stop=stop_after_attempt(2), wait=wait_random_exponential(min=1, max=60))
     async def summarize_code(self, prompt):
@@ -103,7 +103,7 @@ class SummarizeCode(Action):
         design_doc = await repo.get_file(filename=design_pathname.name, relative_path=SYSTEM_DESIGN_FILE_REPO)
         task_pathname = Path(self.context.task_filename)
         task_doc = await repo.get_file(filename=task_pathname.name, relative_path=TASK_FILE_REPO)
-        src_file_repo = self.git_repo.new_file_repository(relative_path=self.g_context.src_workspace)
+        src_file_repo = self.git_repo.new_file_repository(relative_path=self.context.src_workspace)
         code_blocks = []
         for filename in self.context.codes_filenames:
             code_doc = await src_file_repo.get(filename)
diff --git a/metagpt/actions/talk_action.py b/metagpt/actions/talk_action.py
index eab1740fc..253b829ed 100644
--- a/metagpt/actions/talk_action.py
+++ b/metagpt/actions/talk_action.py
@@ -15,18 +15,18 @@ from metagpt.schema import Message
 
 
 class TalkAction(Action):
-    context: str
+    i_context: str
     history_summary: str = ""
     knowledge: str = ""
     rsp: Optional[Message] = None
 
     @property
     def agent_description(self):
-        return self.g_context.kwargs.agent_description
+        return self.context.kwargs.agent_description
 
     @property
     def language(self):
-        return self.g_context.kwargs.language or config.language
+        return self.context.kwargs.language or config.language
 
     @property
     def prompt(self):
diff --git a/metagpt/actions/write_code.py b/metagpt/actions/write_code.py
index 2b8f91a1d..779fe52a6 100644
--- a/metagpt/actions/write_code.py
+++ b/metagpt/actions/write_code.py
@@ -85,7 +85,7 @@ ATTENTION: Use '##' to SPLIT SECTIONS, not '#'. Output format carefully referenc
 
 class WriteCode(Action):
     name: str = "WriteCode"
-    context: Document = Field(default_factory=Document)
+    i_context: Document = Field(default_factory=Document)
 
     @retry(wait=wait_random_exponential(min=1, max=60), stop=stop_after_attempt(6))
     async def write_code(self, prompt) -> str:
@@ -116,7 +116,7 @@ class WriteCode(Action):
                 coding_context.task_doc,
                 exclude=self.context.filename,
                 git_repo=self.git_repo,
-                src_workspace=self.g_context.src_workspace,
+                src_workspace=self.context.src_workspace,
             )
 
         prompt = PROMPT_TEMPLATE.format(
@@ -132,7 +132,7 @@ class WriteCode(Action):
         code = await self.write_code(prompt)
         if not coding_context.code_doc:
             # avoid root_path pydantic ValidationError if use WriteCode alone
-            root_path = self.g_context.src_workspace if self.g_context.src_workspace else ""
+            root_path = self.context.src_workspace if self.context.src_workspace else ""
             coding_context.code_doc = Document(filename=coding_context.filename, root_path=str(root_path))
         coding_context.code_doc.content = code
         return coding_context
diff --git a/metagpt/actions/write_code_review.py b/metagpt/actions/write_code_review.py
index 4433a7ab9..6ff9d5aa4 100644
--- a/metagpt/actions/write_code_review.py
+++ b/metagpt/actions/write_code_review.py
@@ -119,7 +119,7 @@ REWRITE_CODE_TEMPLATE = """
 
 class WriteCodeReview(Action):
     name: str = "WriteCodeReview"
-    context: CodingContext = Field(default_factory=CodingContext)
+    i_context: CodingContext = Field(default_factory=CodingContext)
 
     @retry(wait=wait_random_exponential(min=1, max=60), stop=stop_after_attempt(6))
     async def write_code_review_and_rewrite(self, context_prompt, cr_prompt, filename):
@@ -136,14 +136,14 @@ class WriteCodeReview(Action):
 
     async def run(self, *args, **kwargs) -> CodingContext:
         iterative_code = self.context.code_doc.content
-        k = self.g_context.config.code_review_k_times or 1
+        k = self.context.config.code_review_k_times or 1
         for i in range(k):
             format_example = FORMAT_EXAMPLE.format(filename=self.context.code_doc.filename)
             task_content = self.context.task_doc.content if self.context.task_doc else ""
             code_context = await WriteCode.get_codes(
                 self.context.task_doc,
                 exclude=self.context.filename,
-                git_repo=self.g_context.git_repo,
+                git_repo=self.context.git_repo,
                 src_workspace=self.src_workspace,
             )
             context = "\n".join(
diff --git a/metagpt/actions/write_docstring.py b/metagpt/actions/write_docstring.py
index 8b8335517..79204e6a4 100644
--- a/metagpt/actions/write_docstring.py
+++ b/metagpt/actions/write_docstring.py
@@ -161,7 +161,7 @@ class WriteDocstring(Action):
     """
 
     desc: str = "Write docstring for code."
-    context: Optional[str] = None
+    i_context: Optional[str] = None
 
     async def run(
         self,
diff --git a/metagpt/actions/write_prd_review.py b/metagpt/actions/write_prd_review.py
index 2babe38db..68fb5d9e8 100644
--- a/metagpt/actions/write_prd_review.py
+++ b/metagpt/actions/write_prd_review.py
@@ -13,7 +13,7 @@ from metagpt.actions.action import Action
 
 class WritePRDReview(Action):
     name: str = ""
-    context: Optional[str] = None
+    i_context: Optional[str] = None
 
     prd: Optional[str] = None
     desc: str = "Based on the PRD, conduct a PRD Review, providing clear and detailed feedback"
diff --git a/metagpt/actions/write_teaching_plan.py b/metagpt/actions/write_teaching_plan.py
index 76923a663..04507fda3 100644
--- a/metagpt/actions/write_teaching_plan.py
+++ b/metagpt/actions/write_teaching_plan.py
@@ -15,7 +15,7 @@ from metagpt.logs import logger
 class WriteTeachingPlanPart(Action):
     """Write Teaching Plan Part"""
 
-    context: Optional[str] = None
+    i_context: Optional[str] = None
     topic: str = ""
     language: str = "Chinese"
     rsp: Optional[str] = None
diff --git a/metagpt/actions/write_test.py b/metagpt/actions/write_test.py
index 96486311f..38b1cf03c 100644
--- a/metagpt/actions/write_test.py
+++ b/metagpt/actions/write_test.py
@@ -39,7 +39,7 @@ you should correctly import the necessary classes based on these file locations!
 
 class WriteTest(Action):
     name: str = "WriteTest"
-    context: Optional[TestingContext] = None
+    i_context: Optional[TestingContext] = None
 
     async def write_code(self, prompt):
         code_rsp = await self._aask(prompt)
diff --git a/metagpt/config.py b/metagpt/config.py
index 0c7b54f83..952ccc962 100644
--- a/metagpt/config.py
+++ b/metagpt/config.py
@@ -133,8 +133,8 @@ class Config(metaclass=Singleton):
         self.ollama_api_base = self._get("OLLAMA_API_BASE")
         self.ollama_api_model = self._get("OLLAMA_API_MODEL")
 
-        if not self._get("DISABLE_LLM_PROVIDER_CHECK"):
-            _ = self.get_default_llm_provider_enum()
+        # if not self._get("DISABLE_LLM_PROVIDER_CHECK"):
+        #     _ = self.get_default_llm_provider_enum()
 
         self.openai_base_url = self._get("OPENAI_BASE_URL")
         self.openai_proxy = self._get("OPENAI_PROXY") or self.global_proxy
diff --git a/metagpt/config2.py b/metagpt/config2.py
index 393c46200..cb5c22ac2 100644
--- a/metagpt/config2.py
+++ b/metagpt/config2.py
@@ -153,25 +153,4 @@ def merge_dict(dicts: Iterable[Dict]) -> Dict:
     return result
 
 
-class ConfigMixin(BaseModel):
-    """Mixin class for configurable objects"""
-
-    # Env/Role/Action will use this config as private config, or use self.context.config as public config
-    _config: Optional[Config] = None
-
-    def __init__(self, config: Optional[Config] = None, **kwargs):
-        """Initialize with config"""
-        super().__init__(**kwargs)
-        self.set_config(config)
-
-    def set(self, k, v, override=False):
-        """Set attribute"""
-        if override or not self.__dict__.get(k):
-            self.__dict__[k] = v
-
-    def set_config(self, config: Config, override=False):
-        """Set config"""
-        self.set("_config", config, override)
-
-
 config = Config.default()
diff --git a/metagpt/context.py b/metagpt/context.py
index 4016e8d7c..74f7b133d 100644
--- a/metagpt/context.py
+++ b/metagpt/context.py
@@ -100,5 +100,57 @@ class Context(BaseModel):
         return llm
 
 
+class ContextMixin(BaseModel):
+    """Mixin class for context and config"""
+
+    # Env/Role/Action will use this context as private context, or use self.context as public context
+    _context: Optional[Context] = None
+    # Env/Role/Action will use this config as private config, or use self.context.config as public config
+    _config: Optional[Config] = None
+
+    def __init__(self, context: Optional[Context] = None, config: Optional[Config] = None, **kwargs):
+        """Initialize with config"""
+        super().__init__(**kwargs)
+        self.set_context(context)
+        self.set_config(config)
+
+    def set(self, k, v, override=False):
+        """Set attribute"""
+        if override or not self.__dict__.get(k):
+            self.__dict__[k] = v
+
+    def set_context(self, context: Context, override=True):
+        """Set context"""
+        self.set("_context", context, override)
+
+    def set_config(self, config: Config, override=False):
+        """Set config"""
+        self.set("_config", config, override)
+
+    @property
+    def config(self):
+        """Role config: role config > context config"""
+        if self._config:
+            return self._config
+        return self.context.config
+
+    @config.setter
+    def config(self, config: Config):
+        """Set config"""
+        self.set_config(config)
+
+    @property
+    def context(self):
+        """Role context: role context > context"""
+        if self._context:
+            return self._context
+        return context
+
+    @context.setter
+    def context(self, context: Context):
+        """Set context"""
+        self.set_context(context)
+
+
 # Global context, not in Env
 context = Context()
diff --git a/metagpt/roles/engineer.py b/metagpt/roles/engineer.py
index ad0c1ac92..dc9f31686 100644
--- a/metagpt/roles/engineer.py
+++ b/metagpt/roles/engineer.py
@@ -159,9 +159,9 @@ class Engineer(Role):
         src_relative_path = self.src_workspace.relative_to(self.git_repo.workdir)
         for todo in self.summarize_todos:
             summary = await todo.run()
-            summary_filename = Path(todo.context.design_filename).with_suffix(".md").name
-            dependencies = {todo.context.design_filename, todo.context.task_filename}
-            for filename in todo.context.codes_filenames:
+            summary_filename = Path(todo.i_context.design_filename).with_suffix(".md").name
+            dependencies = {todo.i_context.design_filename, todo.i_context.task_filename}
+            for filename in todo.i_context.codes_filenames:
                 rpath = src_relative_path / filename
                 dependencies.add(str(rpath))
             await code_summaries_pdf_file_repo.save(
@@ -169,15 +169,15 @@ class Engineer(Role):
             )
             is_pass, reason = await self._is_pass(summary)
             if not is_pass:
-                todo.context.reason = reason
-                tasks.append(todo.context.dict())
+                todo.i_context.reason = reason
+                tasks.append(todo.i_context.dict())
                 await code_summaries_file_repo.save(
-                    filename=Path(todo.context.design_filename).name,
-                    content=todo.context.model_dump_json(),
+                    filename=Path(todo.i_context.design_filename).name,
+                    content=todo.i_context.model_dump_json(),
                     dependencies=dependencies,
                 )
             else:
-                await code_summaries_file_repo.delete(filename=Path(todo.context.design_filename).name)
+                await code_summaries_file_repo.delete(filename=Path(todo.i_context.design_filename).name)
 
         logger.info(f"--max-auto-summarize-code={self.config.max_auto_summarize_code}")
         if not tasks or self.config.max_auto_summarize_code == 0:
diff --git a/metagpt/roles/role.py b/metagpt/roles/role.py
index 959b5d00d..e31eabd23 100644
--- a/metagpt/roles/role.py
+++ b/metagpt/roles/role.py
@@ -30,8 +30,7 @@ from pydantic import BaseModel, ConfigDict, Field, SerializeAsAny, model_validat
 from metagpt.actions import Action, ActionOutput
 from metagpt.actions.action_node import ActionNode
 from metagpt.actions.add_requirement import UserRequirement
-from metagpt.config2 import ConfigMixin
-from metagpt.context import Context, context
+from metagpt.context import ContextMixin
 from metagpt.llm import LLM
 from metagpt.logs import logger
 from metagpt.memory import Memory
@@ -120,7 +119,7 @@ class RoleContext(BaseModel):
         return self.memory.get()
 
 
-class Role(SerializationMixin, ConfigMixin, BaseModel):
+class Role(SerializationMixin, ContextMixin, BaseModel):
     """Role/Agent"""
 
     model_config = ConfigDict(arbitrary_types_allowed=True, exclude=["llm"])
@@ -142,7 +141,7 @@ class Role(SerializationMixin, ConfigMixin, BaseModel):
     # builtin variables
     recovered: bool = False  # to tag if a recovered role
     latest_observed_msg: Optional[Message] = None  # record the latest observed message when interrupted
-    context: Optional[Context] = Field(default=context, exclude=True)
+    # context: Optional[Context] = Field(default=context, exclude=True)
 
     __hash__ = object.__hash__  # support Role as hashable type in `Environment.members`
 
@@ -172,16 +171,9 @@ class Role(SerializationMixin, ConfigMixin, BaseModel):
     def set_todo(self, value: Optional[Action]):
         """Set action to do and update context"""
         if value:
-            value.g_context = self.context
+            value.context = self.context
         self.rc.todo = value
 
-    @property
-    def config(self):
-        """Role config: role config > context config"""
-        if self._config:
-            return self._config
-        return self.context.config
-
     @property
     def git_repo(self):
         """Git repo"""
diff --git a/tests/metagpt/test_config.py b/tests/metagpt/test_config.py
index 0a2c0d462..c74b16930 100644
--- a/tests/metagpt/test_config.py
+++ b/tests/metagpt/test_config.py
@@ -7,8 +7,9 @@
 """
 from pydantic import BaseModel
 
-from metagpt.config2 import Config, ConfigMixin, config
+from metagpt.config2 import Config, config
 from metagpt.configs.llm_config import LLMType
+from metagpt.context import ContextMixin
 from tests.metagpt.provider.mock_llm_config import mock_llm_config
 
 
@@ -29,7 +30,7 @@ def test_config_from_dict():
     assert cfg.llm["default"].api_key == "mock_api_key"
 
 
-class ModelX(ConfigMixin, BaseModel):
+class ModelX(ContextMixin, BaseModel):
     a: str = "a"
     b: str = "b"