fix: Add error handling and consolidate tool assignment logic

Co-Authored-By: Joe Moura <joao@crewai.com>

src/crewai/agent.py

@@ -137,7 +137,16 @@ class Agent(BaseAgent):
 
         # If this is a manager agent, ensure it only has delegation tools
         if self.role == "Manager" and self.allow_delegation and self.crew:
-            self.tools = self.get_delegation_tools(self.crew.agents)
+            try:
+                self.tools = self.get_delegation_tools(self.crew.agents)
+                self._logger.log(
+                    "info",
+                    f"Manager agent has delegation tools: {[tool.name for tool in self.tools]}",
+                    color="blue",
+                )
+            except Exception as e:
+                self._logger.log("error", f"Failed to set delegation tools: {str(e)}", color="red")
+                raise ValueError(f"Failed to set delegation tools: {str(e)}")
 
         return self
 

src/crewai/crew.py

@@ -694,14 +694,18 @@ class Crew(BaseModel):
         if self.manager_agent is not None:
             manager = self.manager_agent
             manager.allow_delegation = True
-            # Only use delegation tools for manager agent
+            manager.crew = self
-            delegation_tools = AgentTools(agents=self.agents).tools()
+            try:
-            manager.tools = delegation_tools
+                delegation_tools = AgentTools(agents=self.agents).tools()
-            self._logger.log(
+                manager.tools = delegation_tools
-                "info",
+                self._logger.log(
-                f"Manager agent has delegation tools: {[tool.name for tool in manager.tools]}",
+                    "info",
-                color="blue",
+                    f"Manager agent has delegation tools: {[tool.name for tool in manager.tools]}",
-            )
+                    color="blue",
+                )
+            except Exception as e:
+                self._logger.log("error", f"Failed to set manager tools: {str(e)}", color="red")
+                raise ValueError(f"Failed to set manager tools: {str(e)}")
         else:
             self.manager_llm = create_llm(self.manager_llm)
             manager = Agent(
@@ -714,9 +718,19 @@ class Crew(BaseModel):
                 verbose=self.verbose,
             )
             self.manager_agent = manager
-            # Set delegation tools after initialization
+            manager.crew = self
-            manager.tools = AgentTools(agents=self.agents).tools()
+            try:
-        manager.crew = self
+                delegation_tools = AgentTools(agents=self.agents).tools()
+                manager.tools = delegation_tools
+                self._logger.log(
+                    "info",
+                    f"Manager agent has delegation tools: {[tool.name for tool in manager.tools]}",
+                    color="blue",
+                )
+            except Exception as e:
+                self._logger.log("error", f"Failed to set manager tools: {str(e)}", color="red")
+                raise ValueError(f"Failed to set manager tools: {str(e)}")
+
 
     def _execute_tasks(
         self,

src/crewai/task.py

@@ -358,6 +358,10 @@ class Task(BaseModel):
         self.start_time = datetime.datetime.now()
         self._execution_span = self._telemetry.task_started(crew=agent.crew, task=self)
 
+        # Track delegation if this task is being executed by a different agent
+        if self.agent and agent.role != self.agent.role:
+            self.increment_delegations(agent.role)
+
         self.prompt_context = context
         tools = tools or self.tools or []
 

src/crewai/tools/agent_tools/agent_tools.py

@@ -6,6 +6,11 @@ from .ask_question_tool import AskQuestionTool
 from .delegate_work_tool import DelegateWorkTool
 
 
+# Tool name constants
+DELEGATE_WORK_TOOL = "Delegate Work"
+ASK_QUESTION_TOOL = "Ask Question"
+
+
 class AgentTools:
     """Manager class for agent-related tools"""
 
@@ -21,14 +26,14 @@ class AgentTools:
             agents=self.agents,
             i18n=self.i18n,
             description=self.i18n.tools("delegate_work").format(coworkers=coworkers),  # type: ignore
-            name="Delegate Work"
+            name=DELEGATE_WORK_TOOL  # Using constant for consistency
         )
 
         ask_tool = AskQuestionTool(
             agents=self.agents,
             i18n=self.i18n,
             description=self.i18n.tools("ask_question").format(coworkers=coworkers),  # type: ignore
-            name="Ask Question"
+            name=ASK_QUESTION_TOOL  # Using constant for consistency
         )
 
         return [delegate_tool, ask_tool]