refine code

metagpt/actions/action.py

@@ -10,10 +10,11 @@ from __future__ import annotations
 
 from typing import Optional, Union
 
-from pydantic import ConfigDict, Field, model_validator
+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.llm import LLM
 from metagpt.provider.base_llm import BaseLLM
@@ -27,7 +28,7 @@ from metagpt.schema import (
 from metagpt.utils.file_repository import FileRepository
 
 
-class Action(SerializationMixin):
+class Action(SerializationMixin, ConfigMixin, BaseModel):
     model_config = ConfigDict(arbitrary_types_allowed=True, exclude=["llm"])
 
     name: str = ""

metagpt/roles/role.py

@@ -146,6 +146,23 @@ class Role(SerializationMixin, ConfigMixin, BaseModel):
 
     __hash__ = object.__hash__  # support Role as hashable type in `Environment.members`
 
+    def __init__(self, **data: Any):
+        self.pydantic_rebuild_model()
+        super().__init__(**data)
+
+        self.llm.system_prompt = self._get_prefix()
+        self._watch(data.get("watch") or [UserRequirement])
+
+        if self.latest_observed_msg:
+            self.recovered = True
+
+    @staticmethod
+    def pydantic_rebuild_model():
+        from metagpt.environment import Environment
+
+        Environment
+        Role.model_rebuild()
+
     @property
     def todo(self) -> Action:
         return self.rc.todo
@@ -157,6 +174,9 @@ class Role(SerializationMixin, ConfigMixin, BaseModel):
 
     @property
     def config(self):
+        """Role config: role config > context config"""
+        if self._config:
+            return self._config
         return self.context.config
 
     @property
@@ -177,19 +197,19 @@ class Role(SerializationMixin, ConfigMixin, BaseModel):
 
     @property
     def prompt_schema(self):
-        return self.context.config.prompt_schema
+        return self.config.prompt_schema
 
     @property
     def project_name(self):
-        return self.context.config.project_name
+        return self.config.project_name
 
     @project_name.setter
     def project_name(self, value):
-        self.context.config.project_name = value
+        self.config.project_name = value
 
     @property
     def project_path(self):
-        return self.context.config.project_path
+        return self.config.project_path
 
     @model_validator(mode="after")
     def check_addresses(self):
@@ -197,21 +217,6 @@ class Role(SerializationMixin, ConfigMixin, BaseModel):
             self.addresses = {any_to_str(self), self.name} if self.name else {any_to_str(self)}
         return self
 
-    def __init__(self, **data: Any):
-        # --- avoid PydanticUndefinedAnnotation name 'Environment' is not defined #
-        from metagpt.environment import Environment
-
-        Environment
-        # ------
-        Role.model_rebuild()
-        super().__init__(**data)
-
-        self.llm.system_prompt = self._get_prefix()
-        self._watch(data.get("watch") or [UserRequirement])
-
-        if self.latest_observed_msg:
-            self.recovered = True
-
     def _reset(self):
         self.states = []
         self.actions = []