diff --git a/bindings/ceylon/ceylon/task/task_coordinator.py b/bindings/ceylon/ceylon/task/task_coordinator.py
index c534694..5dde2c7 100644
--- a/bindings/ceylon/ceylon/task/task_coordinator.py
+++ b/bindings/ceylon/ceylon/task/task_coordinator.py
@@ -5,6 +5,7 @@
 from ceylon import CoreAdmin, on_message
 from ceylon.ceylon import AgentDetail
 from ceylon.task import Task, TaskResult, TaskAssignment, SubTask
+from ceylon.task.task_operation import TaskResultStatus
 from ceylon.task.task_operator import TaskOperator
 
 
@@ -55,16 +56,19 @@ async def run_tasks(self):
 
     @on_message(type=TaskResult)
     async def on_task_result(self, result: TaskResult):
-        for idx, task in enumerate(self.tasks):
-            sub_task = task.get_next_subtask()
-            if sub_task is None or result.task_id != sub_task[1].id:
-                continue
-            if result.task_id == sub_task[1].id:
-                task.update_subtask_status(sub_task[1].name, result.result)
-                break
-
-        if self.all_tasks_completed():
-            await self.end_task_management()
+        print(f"Received task result: {result}")
+        if result.status == TaskResultStatus.COMPLETED:
+            for idx, task in enumerate(self.tasks):
+                sub_task = task.get_next_subtask()
+                print(result.task_id, sub_task[1].id, result.task_id == sub_task[1].id)
+                if sub_task is None or result.task_id != sub_task[1].id:
+                    continue
+                if result.task_id == sub_task[1].id:
+                    task.update_subtask_status(sub_task[1].name, result.result)
+                    break
+
+            if self.all_tasks_completed():
+                await self.end_task_management()
 
         await self.run_tasks()
 
diff --git a/bindings/ceylon/ceylon/task/task_operation.py b/bindings/ceylon/ceylon/task/task_operation.py
index 72b8d4c..9ebbcd3 100644
--- a/bindings/ceylon/ceylon/task/task_operation.py
+++ b/bindings/ceylon/ceylon/task/task_operation.py
@@ -1,4 +1,5 @@
 import datetime
+import enum
 from typing import List, Optional, Tuple, Set, Dict
 from uuid import uuid4
 
@@ -144,6 +145,12 @@ class TaskAssignment(BaseModel):
     assigned_agent: str
 
 
+class TaskResultStatus(enum.Enum):
+    IN_PROGRESS = "IN_PROGRESS"
+    COMPLETED = "COMPLETED"
+    FAILED = "FAILED"
+
+
 class TaskResult(BaseModel):
     task_id: str
     parent_task_id: str
@@ -151,6 +158,7 @@ class TaskResult(BaseModel):
     result: str
     name: str
     description: str
+    status: TaskResultStatus
 
 
 if __name__ == "__main__":
diff --git a/bindings/ceylon/ceylon/task/task_operator.py b/bindings/ceylon/ceylon/task/task_operator.py
index 3976b39..a6b8ccb 100644
--- a/bindings/ceylon/ceylon/task/task_operator.py
+++ b/bindings/ceylon/ceylon/task/task_operator.py
@@ -6,6 +6,7 @@
 from ceylon import Agent, on_message
 from ceylon.static_val import DEFAULT_WORKSPACE_ID, DEFAULT_ADMIN_PORT
 from ceylon.task import TaskAssignment, TaskResult
+from ceylon.task.task_operation import TaskResultStatus
 
 
 class TaskOperator(Agent, abc.ABC):
@@ -21,17 +22,35 @@ def __init__(self, name: str, role: str, workspace_id: str = DEFAULT_WORKSPACE_I
     async def on_task_assignment(self, data: TaskAssignment):
         if data.assigned_agent == self.details().name and data.task.id not in self.exeuction_history:
             self.exeuction_history.append(data.task.id)
-            logger.info(f"{self.details().name} received subtask: {data.task.description}")
-            result = await self.get_result(data.task)
+            status = TaskResultStatus.IN_PROGRESS
+            result = None
+            try:
+                logger.info(f"{self.details().name} received subtask: {data.task.description}")
+                result = await self.get_result(data.task)
+                status = TaskResultStatus.COMPLETED
+                logger.info(f"{self.details().name} completed subtask: {data.task.description}")
+            except Exception as e:
+                logger.info(f"{self.details().name} failed subtask: {data.task.description}")
+                for idx, task in enumerate(self.exeuction_history):
+                    if task == data.task.id:
+                        del self.exeuction_history[idx]
+                        break
+                logger.exception(e)
+                result = str(e)
+                status = TaskResultStatus.FAILED
+
             result_task = TaskResult(task_id=data.task.id,
                                      name=data.task.name,
                                      description=data.task.description,
                                      agent=self.details().name,
                                      parent_task_id=data.task.parent_task_id,
-                                     result=result)
+                                     result=result,
+                                     status=status)
             # Update task history
-            await self.add_result_to_history(result_task)
+            if status == TaskResultStatus.COMPLETED:
+                await self.add_result_to_history(result_task)
             await self.broadcast_data(result_task)
+            logger.info(f"{self.details().name} sent subtask result: {data.task.description}")
 
     @on_message(type=TaskResult)
     async def on_task_result(self, data: TaskResult):
diff --git a/bindings/ceylon/tests/tasks/llm_software_agency.py b/bindings/ceylon/tests/tasks/llm_software_agency.py
index 13953e5..fbea257 100644
--- a/bindings/ceylon/tests/tasks/llm_software_agency.py
+++ b/bindings/ceylon/tests/tasks/llm_software_agency.py
@@ -1,5 +1,6 @@
 from langchain_openai import ChatOpenAI
 
+from ceylon.ceylon import enable_log
 from ceylon.llm import LLMTaskOperator, LLMTaskCoordinator
 from ceylon.task import Task
 from ceylon.utils.agent_monitor import AgentMonitor
@@ -16,9 +17,9 @@
 
 # Initialize language models
 
-llm = ChatOpenAI(model="gpt-4o")
-tool_llm = ChatOpenAI(model="gpt-4o")
-code_llm = ChatOpenAI(model="gpt-4o")
+llm = ChatOpenAI(model="gpt-4o-mini")
+tool_llm = ChatOpenAI(model="gpt-4o-mini")
+code_llm = ChatOpenAI(model="gpt-4o-mini")
 
 # Create specialized agents
 agents = [