fixes

src/crewai/agent.py

@@ -129,9 +129,9 @@ class Agent(BaseAgent):
         default=None,
         description="Embedder configuration for the agent.",
     )
-    _knowledge: Optional[Knowledge] = PrivateAttr(
-        default=None,
-    )
+    # knowledge: Optional[Knowledge] = PrivateAttr(
+    #     default=None,
+    # )
 
     @model_validator(mode="after")
     def post_init_setup(self):
@@ -162,7 +162,7 @@ class Agent(BaseAgent):
                 if isinstance(self.knowledge_sources, list) and all(
                     isinstance(k, BaseKnowledgeSource) for k in self.knowledge_sources
                 ):
-                    self._knowledge = Knowledge(
+                    self.knowledge = Knowledge(
                         sources=self.knowledge_sources,
                         embedder=self.embedder,
                         collection_name=knowledge_agent_name,
@@ -225,8 +225,8 @@ class Agent(BaseAgent):
             if memory.strip() != "":
                 task_prompt += self.i18n.slice("memory").format(memory=memory)
 
-        if self._knowledge:
-            agent_knowledge_snippets = self._knowledge.query([task.prompt()])
+        if self.knowledge:
+            agent_knowledge_snippets = self.knowledge.query([task.prompt()])
             if agent_knowledge_snippets:
                 agent_knowledge_context = extract_knowledge_context(
                     agent_knowledge_snippets

src/crewai/crew.py

@@ -211,8 +211,9 @@ class Crew(BaseModel):
         default=None,
         description="LLM used to handle chatting with the crew.",
     )
-    _knowledge: Optional[Knowledge] = PrivateAttr(
+    knowledge: Optional[Knowledge] = Field(
         default=None,
+        description="Knowledge for the crew.",
     )
 
     @field_validator("id", mode="before")
@@ -290,7 +291,7 @@ class Crew(BaseModel):
                 if isinstance(self.knowledge_sources, list) and all(
                     isinstance(k, BaseKnowledgeSource) for k in self.knowledge_sources
                 ):
-                    self._knowledge = Knowledge(
+                    self.knowledge = Knowledge(
                         sources=self.knowledge_sources,
                         embedder_config=self.embedder,
                         collection_name="crew",
@@ -992,8 +993,8 @@ class Crew(BaseModel):
         return result
 
     def query_knowledge(self, query: List[str]) -> Union[List[Dict[str, Any]], None]:
-        if self._knowledge:
-            return self._knowledge.query(query)
+        if self.knowledge:
+            return self.knowledge.query(query)
         return None
 
     def fetch_inputs(self) -> Set[str]:
@@ -1038,6 +1039,7 @@ class Crew(BaseModel):
             "agents",
             "tasks",
             "knowledge_sources",
+            "knowledge",
         }
 
         cloned_agents = [agent.copy() for agent in self.agents]
@@ -1046,6 +1048,7 @@ class Crew(BaseModel):
 
         cloned_tasks = []
         existing_knowledge_sources = shallow_copy(self.knowledge_sources)
+        existing_knowledge = shallow_copy(self.knowledge)
 
         for task in self.tasks:
             cloned_task = task.copy(cloned_agents, task_mapping)
@@ -1071,6 +1074,7 @@ class Crew(BaseModel):
             agents=cloned_agents,
             tasks=cloned_tasks,
             knowledge_sources=existing_knowledge_sources,
+            knowledge=existing_knowledge,
         )
 
         return copied_crew