diff --git a/modules/interfaces/serviceChatModel.py b/modules/interfaces/serviceChatModel.py
index f81a882b..b7d2a488 100644
--- a/modules/interfaces/serviceChatModel.py
+++ b/modules/interfaces/serviceChatModel.py
@@ -42,7 +42,6 @@ class TaskStatus(str, Enum):
     COMPLETED = "completed"
     FAILED = "failed"
     CANCELLED = "cancelled"
-    ROLLED_BACK = "rolled_back"
 
 # Register labels for TaskStatus
 register_model_labels(
@@ -164,204 +163,131 @@ register_model_labels(
 
 class TaskAction(BaseModel, ModelMixin):
     """Model for task actions"""
-    id: str = Field(default_factory=lambda: str(uuid.uuid4()), description="Unique action identifier")
-    method: str = Field(..., description="Method to execute")
-    action: str = Field(..., description="Action to perform")
-    parameters: Dict[str, Any] = Field(default_factory=dict, description="Action parameters")
-    status: TaskStatus = Field(default=TaskStatus.PENDING, description="Current action status")
-    retryCount: int = Field(default=0, description="Number of retry attempts")
-    retryMax: int = Field(default=3, description="Maximum number of retry attempts")
+    id: str = Field(..., description="Action ID")
+    execMethod: str = Field(..., description="Method to execute")
+    execAction: str = Field(..., description="Action to perform")
+    execParameters: Dict[str, Any] = Field(default_factory=dict, description="Action parameters")
+    execResultLabel: Optional[str] = Field(None, description="Label for the set of result documents")
+    status: TaskStatus = Field(default=TaskStatus.PENDING, description="Action status")
     error: Optional[str] = Field(None, description="Error message if action failed")
-    startedAt: Optional[datetime] = Field(None, description="Action start timestamp")
-    finishedAt: Optional[datetime] = Field(None, description="Action completion timestamp")
+    retryCount: int = Field(default=0, description="Number of retries attempted")
+    retryMax: int = Field(default=3, description="Maximum number of retries")
+    processingTime: Optional[float] = Field(None, description="Processing time in seconds")
+    timestamp: datetime = Field(default_factory=lambda: datetime.now(UTC), description="When the action was executed")
 
-    def start(self) -> None:
-        """Start the action"""
-        self.status = TaskStatus.RUNNING
-        self.startedAt = datetime.now(UTC)
+    def isSuccessful(self) -> bool:
+        """Check if action was successful"""
+        return self.status == TaskStatus.COMPLETED
 
-    def complete(self) -> None:
-        """Mark action as completed"""
-        self.status = TaskStatus.COMPLETED
-        self.finishedAt = datetime.now(UTC)
+    def hasError(self) -> bool:
+        """Check if action has an error"""
+        return self.status == TaskStatus.FAILED
 
-    def fail(self, error: str) -> None:
-        """Mark action as failed"""
-        self.status = TaskStatus.FAILED
+    def getErrorMessage(self) -> Optional[str]:
+        """Get error message if any"""
+        return self.error if self.hasError() else None
+
+    def setError(self, error: str) -> None:
+        """Set action error"""
         self.error = error
-        self.finishedAt = datetime.now(UTC)
+        self.status = TaskStatus.FAILED
 
-    def canRetry(self) -> bool:
-        """Check if action can be retried"""
-        return self.retryCount < self.retryMax
-
-    def incrementRetry(self) -> None:
-        """Increment retry count"""
-        self.retryCount += 1
+    def setSuccess(self) -> None:
+        """Set action as successful"""
+        self.status = TaskStatus.COMPLETED
+        self.error = None
 
 # Register labels for TaskAction
 register_model_labels(
     "TaskAction",
     {"en": "Task Action", "fr": "Action de tâche"},
     {
-        "id": {"en": "ID", "fr": "ID"},
-        "method": {"en": "Method", "fr": "Méthode"},
-        "action": {"en": "Action", "fr": "Action"},
-        "parameters": {"en": "Parameters", "fr": "Paramètres"},
+        "id": {"en": "Action ID", "fr": "ID de l'action"},
+        "execMethod": {"en": "Method", "fr": "Méthode"},
+        "execAction": {"en": "Action", "fr": "Action"},
+        "execParameters": {"en": "Parameters", "fr": "Paramètres"},
         "status": {"en": "Status", "fr": "Statut"},
-        "retryCount": {"en": "Retry Count", "fr": "Nombre de tentatives"},
-        "retryMax": {"en": "Max Retries", "fr": "Tentatives maximales"},
         "error": {"en": "Error", "fr": "Erreur"},
-        "startedAt": {"en": "Started At", "fr": "Démarré le"},
-        "finishedAt": {"en": "Finished At", "fr": "Terminé le"}
+        "retryCount": {"en": "Retry Count", "fr": "Nombre de tentatives"},
+        "retryMax": {"en": "Max Retries", "fr": "Tentatives max"},
+        "resultDocuments": {"en": "Result Documents", "fr": "Documents du résultat"},
+        "execResultLabel": {"en": "Document Label", "fr": "Label du document"},
+        "processingTime": {"en": "Processing Time", "fr": "Temps de traitement"},
+        "timestamp": {"en": "Timestamp", "fr": "Horodatage"}
     }
 )
 
 class TaskItem(BaseModel, ModelMixin):
-    """Model for tasks"""
-    id: str = Field(..., description="Unique task identifier")
-    workflowId: str = Field(..., description="Associated workflow ID")
-    status: TaskStatus = Field(default=TaskStatus.PENDING, description="Current task status")
+    """Model for workflow tasks"""
+    id: str = Field(..., description="Task ID")
+    workflowId: str = Field(..., description="Workflow ID")
+    userInput: str = Field(..., description="User input that triggered the task")
+    status: TaskStatus = Field(default=TaskStatus.PENDING, description="Task status")
     error: Optional[str] = Field(None, description="Error message if task failed")
-    startedAt: Optional[datetime] = Field(None, description="Task start timestamp")
-    finishedAt: Optional[datetime] = Field(None, description="Task completion timestamp")
+    startedAt: Optional[str] = Field(None, description="When the task started")
+    finishedAt: Optional[str] = Field(None, description="When the task finished")
     actionList: List[TaskAction] = Field(default_factory=list, description="List of actions to execute")
-    documentsOutput: List[Dict[str, Any]] = Field(default_factory=list, description="Output documents")
-    retryCount: int = Field(default=0, description="Number of retry attempts")
-    retryMax: int = Field(default=3, description="Maximum number of retry attempts")
+    retryCount: int = Field(default=0, description="Number of retries attempted")
+    retryMax: int = Field(default=3, description="Maximum number of retries")
     rollbackOnFailure: bool = Field(default=True, description="Whether to rollback on failure")
-    dependencies: List[str] = Field(default_factory=list, description="List of dependent task IDs")
-    feedback: Optional[Dict[str, Any]] = Field(None, description="Task feedback data")
+    dependencies: List[str] = Field(default_factory=list, description="List of task IDs this task depends on")
+    feedback: Optional[str] = Field(None, description="Task feedback message")
+    processingTime: Optional[float] = Field(None, description="Total processing time in seconds")
+    resultLabels: Optional[Dict[str, Any]] = Field(default_factory=dict, description="Map of result labels to their values")
 
-    def isCompleted(self) -> bool:
-        """Check if task is completed"""
+    def isSuccessful(self) -> bool:
+        """Check if task was successful"""
         return self.status == TaskStatus.COMPLETED
 
-    def isFailed(self) -> bool:
-        """Check if task has failed"""
+    def hasError(self) -> bool:
+        """Check if task has an error"""
         return self.status == TaskStatus.FAILED
 
-    def canRetry(self) -> bool:
-        """Check if task can be retried"""
-        return self.retryCount < self.retryMax
+    def getErrorMessage(self) -> Optional[str]:
+        """Get error message if any"""
+        return self.error if self.hasError() else None
 
-    def start(self) -> None:
-        """Start the task"""
-        self.status = TaskStatus.RUNNING
-        self.startedAt = datetime.now(UTC)
+    def getResultDocuments(self) -> List[ChatDocument]:
+        """Get all documents from all successful actions"""
+        documents = []
+        for action in self.actionList:
+            if action.isSuccessful() and action.resultDocuments:
+                documents.extend(action.resultDocuments)
+        return documents
 
-    def complete(self) -> None:
-        """Mark task as completed"""
-        self.status = TaskStatus.COMPLETED
-        self.finishedAt = datetime.now(UTC)
+    def getResultDocumentLabel(self) -> Optional[str]:
+        """Get the label for the result documents"""
+        for action in self.actionList:
+            if action.isSuccessful() and action.execResultLabel:
+                return action.execResultLabel
+        return None
 
-    def fail(self, error: str) -> None:
-        """Mark task as failed"""
-        self.status = TaskStatus.FAILED
-        self.error = error
-        self.finishedAt = datetime.now(UTC)
-
-    def cancel(self) -> None:
-        """Cancel the task"""
-        self.status = TaskStatus.CANCELLED
-        self.finishedAt = datetime.now(UTC)
-
-    def rollback(self) -> None:
-        """Mark task as rolled back"""
-        self.status = TaskStatus.ROLLED_BACK
-        self.finishedAt = datetime.now(UTC)
-
-    def incrementRetry(self) -> None:
-        """Increment retry count"""
-        self.retryCount += 1
-
-    def addDependency(self, taskId: str) -> None:
-        """Add a task dependency"""
-        if taskId not in self.dependencies:
-            self.dependencies.append(taskId)
-
-    def removeDependency(self, taskId: str) -> None:
-        """Remove a task dependency"""
-        if taskId in self.dependencies:
-            self.dependencies.remove(taskId)
-
-    def addAction(self, action: TaskAction) -> None:
-        """Add an action to the task"""
-        self.actionList.append(action)
-
-    def addDocumentOutput(self, document: Dict[str, Any]) -> None:
-        """Add an output document"""
-        self.documentsOutput.append(document)
-
-    def setFeedback(self, feedback: Dict[str, Any]) -> None:
-        """Set task feedback"""
-        self.feedback = feedback
+    def getResultLabel(self, label: str) -> Optional[Any]:
+        """Get value for a specific result label"""
+        return self.resultLabels.get(label) if self.resultLabels else None
 
 # Register labels for TaskItem
 register_model_labels(
     "TaskItem",
     {"en": "Task", "fr": "Tâche"},
     {
-        "id": {"en": "ID", "fr": "ID"},
-        "workflowId": {"en": "Workflow ID", "fr": "ID du flux de travail"},
+        "id": {"en": "Task ID", "fr": "ID de la tâche"},
+        "workflowId": {"en": "Workflow ID", "fr": "ID du workflow"},
+        "userInput": {"en": "User Input", "fr": "Entrée utilisateur"},
         "status": {"en": "Status", "fr": "Statut"},
         "error": {"en": "Error", "fr": "Erreur"},
-        "startedAt": {"en": "Started At", "fr": "Démarré le"},
-        "finishedAt": {"en": "Finished At", "fr": "Terminé le"},
-        "actionList": {"en": "Action List", "fr": "Liste d'actions"},
-        "documentsOutput": {"en": "Output Documents", "fr": "Documents de sortie"},
+        "startedAt": {"en": "Started At", "fr": "Démarré à"},
+        "finishedAt": {"en": "Finished At", "fr": "Terminé à"},
+        "actionList": {"en": "Actions", "fr": "Actions"},
         "retryCount": {"en": "Retry Count", "fr": "Nombre de tentatives"},
-        "retryMax": {"en": "Max Retries", "fr": "Tentatives maximales"},
-        "rollbackOnFailure": {"en": "Rollback on Failure", "fr": "Annulation en cas d'échec"},
+        "retryMax": {"en": "Max Retries", "fr": "Tentatives max"},
+        "rollbackOnFailure": {"en": "Rollback On Failure", "fr": "Annuler en cas d'échec"},
         "dependencies": {"en": "Dependencies", "fr": "Dépendances"},
-        "feedback": {"en": "Task Feedback", "fr": "Retour sur la tâche"}
-    }
-)
-
-class TaskResult(BaseModel, ModelMixin):
-    """Model for task execution results"""
-    taskId: str = Field(..., description="ID of the task this result belongs to")
-    status: TaskStatus = Field(..., description="Result status")
-    success: bool = Field(..., description="Whether the task was successful")
-    error: Optional[str] = Field(None, description="Error message if task failed")
-    data: Optional[Dict[str, Any]] = Field(None, description="Result data")
-    documents: List[ChatDocument] = Field(default_factory=list, description="Output documents")
-    documentsLabel: Optional[str] = Field(None, description="Label for the set of documents")
-    feedback: Optional[str] = Field(None, description="Task feedback message")
-    processingTime: Optional[float] = Field(None, description="Processing time in seconds")
-    timestamp: datetime = Field(default_factory=lambda: datetime.now(UTC), description="When the result was created")
-
-    def isSuccessful(self) -> bool:
-        """Check if result indicates success"""
-        return self.success and self.status == TaskStatus.COMPLETED
-
-    def hasError(self) -> bool:
-        """Check if result has an error"""
-        return not self.success or self.status == TaskStatus.FAILED
-
-    def getErrorMessage(self) -> Optional[str]:
-        """Get error message if any"""
-        return self.error if self.hasError() else None
-
-# Register labels for TaskResult
-register_model_labels(
-    "TaskResult",
-    {"en": "Task Result", "fr": "Résultat de la tâche"},
-    {
-        "taskId": {"en": "Task ID", "fr": "ID de la tâche"},
-        "status": {"en": "Status", "fr": "Statut"},
-        "success": {"en": "Success", "fr": "Succès"},
-        "error": {"en": "Error", "fr": "Erreur"},
-        "data": {"en": "Data", "fr": "Données"},
-        "documents": {"en": "Documents", "fr": "Documents"},
         "feedback": {"en": "Feedback", "fr": "Retour"},
-        "processingTime": {"en": "Processing Time", "fr": "Temps de traitement"},
-        "timestamp": {"en": "Timestamp", "fr": "Horodatage"}
+        "processingTime": {"en": "Processing Time", "fr": "Temps de traitement"}
     }
 )
 
-# ===== Message and Workflow Models =====
-
 class ChatStat(BaseModel, ModelMixin):
     """Data model for chat statistics"""
     id: str = Field(default_factory=lambda: str(uuid.uuid4()), description="Primary key")
@@ -420,6 +346,7 @@ class ChatMessage(BaseModel, ModelMixin):
     workflowId: str = Field(description="Foreign key to workflow")
     parentMessageId: Optional[str] = Field(None, description="Parent message ID for threading")
     documents: List[ChatDocument] = Field(default_factory=list, description="Associated documents")
+    documentsLabel: Optional[str] = Field(None, description="Label for the set of documents")
     message: Optional[str] = Field(None, description="Message content")
     role: str = Field(description="Role of the message sender")
     status: str = Field(description="Status of the message (first, step, last)")
@@ -427,6 +354,9 @@ class ChatMessage(BaseModel, ModelMixin):
     publishedAt: str = Field(description="When the message was published")
     stats: Optional[ChatStat] = Field(None, description="Statistics for this message")
     success: Optional[bool] = Field(None, description="Whether the message processing was successful")
+    actionId: Optional[str] = Field(None, description="ID of the action that produced this message")
+    actionMethod: Optional[str] = Field(None, description="Method of the action that produced this message")
+    actionName: Optional[str] = Field(None, description="Name of the action that produced this message")
 
 # Register labels for ChatMessage
 register_model_labels(
@@ -437,13 +367,17 @@ register_model_labels(
         "workflowId": {"en": "Workflow ID", "fr": "ID du flux de travail"},
         "parentMessageId": {"en": "Parent Message ID", "fr": "ID du message parent"},
         "documents": {"en": "Documents", "fr": "Documents"},
+        "documentsLabel": {"en": "Documents Label", "fr": "Label des documents"},
         "message": {"en": "Message", "fr": "Message"},
         "role": {"en": "Role", "fr": "Rôle"},
         "status": {"en": "Status", "fr": "Statut"},
         "sequenceNr": {"en": "Sequence Number", "fr": "Numéro de séquence"},
         "publishedAt": {"en": "Published At", "fr": "Publié le"},
         "stats": {"en": "Statistics", "fr": "Statistiques"},
-        "success": {"en": "Success", "fr": "Succès"}
+        "success": {"en": "Success", "fr": "Succès"},
+        "actionId": {"en": "Action ID", "fr": "ID de l'action"},
+        "actionMethod": {"en": "Action Method", "fr": "Méthode de l'action"},
+        "actionName": {"en": "Action Name", "fr": "Nom de l'action"}
     }
 )
 
diff --git a/modules/workflow/managerChat.py b/modules/workflow/managerChat.py
index 510e6668..a605bc91 100644
--- a/modules/workflow/managerChat.py
+++ b/modules/workflow/managerChat.py
@@ -3,6 +3,7 @@ from typing import Dict, Any, Optional, List, Union
 from datetime import datetime, UTC
 import json
 import uuid
+import time
 
 from modules.interfaces.serviceAppModel import User
 from modules.interfaces.serviceChatModel import (
@@ -50,7 +51,10 @@ class ChatManager:
             }
             
             # Create task using ChatInterface
-            return self.service.createTask(taskData)
+            task = self.service.createTask(taskData)
+            if task:
+                self.service.currentTask = task
+            return task
             
         except Exception as e:
             logger.error(f"Error creating initial task: {str(e)}")
@@ -81,7 +85,10 @@ class ChatManager:
             }
             
             # Create task using ChatInterface
-            return self.service.createTask(taskData)
+            task = self.service.createTask(taskData)
+            if task:
+                self.service.currentTask = task
+            return task
             
         except Exception as e:
             logger.error(f"Error creating next task: {str(e)}")
@@ -221,111 +228,215 @@ Document: {document.filename} ({document.mimeType})
             return ""
         
     # ===== Task Execution and Processing =====
-    async def executeTask(self, task: TaskItem) -> TaskResult:
-        """Execute a task and return its result"""
+    async def executeTask(self, task: TaskItem) -> TaskItem:
+        """Execute a task with its list of actions"""
         try:
-            # Create result object
-            result = TaskResult(
-                taskId=task.id,
-                status=task.status,
-                success=True,
-                timestamp=datetime.now(UTC)
-            )
-            
             # Start timing
-            startTime = datetime.now(UTC)
-            
-            # Execute each action
+            start_time = time.time()
+            task.startedAt = datetime.now(UTC).isoformat()
+            task.status = TaskStatus.RUNNING
+
+            # Execute each action in sequence
             for action in task.actionList:
                 try:
                     # Execute action
-                    actionResult = await action.execute()
-                    
-                    # Update action status
-                    action.status = actionResult.status
-                    if actionResult.error:
-                        action.error = actionResult.error
-                        
-                except Exception as e:
-                    logger.error(f"Action execution error: {str(e)}")
-                    action.status = TaskStatus.FAILED
-                    action.error = str(e)
-            
-            # Calculate processing time
-            endTime = datetime.now(UTC)
-            result.processingTime = (endTime - startTime).total_seconds()
-            
-            # Update task status
-            if all(action.status == TaskStatus.COMPLETED for action in task.actionList):
-                result.status = TaskStatus.COMPLETED
-                result.success = True
-            else:
-                result.status = TaskStatus.FAILED
-                result.success = False
-                result.error = "One or more actions failed"
-            
-            # Generate feedback and documents if task completed successfully
-            if result.status == TaskStatus.COMPLETED:
-                # Generate feedback using AI
-                result.feedback = await self._processTaskResults(task)
-                
-                # Create output documents
-                result.documents = await self._createOutputDocuments(task)
-                # Set documents label based on task input
-                result.documentsLabel = "TaskResult"
-            else:
-                result.feedback = f"Task failed: {result.error}"
-            
-            # Update task in database
-            self.service.updateTask(task.id, {
-                "status": result.status,
-                "error": result.error,
-                "finishedAt": datetime.now(UTC).isoformat(),
-                "actionList": [action.dict() for action in task.actionList],
-                "documentsOutput": result.documents,
-                "feedback": result.feedback,
-                "documentsLabel": result.documentsLabel
-            })
-            
-            return result
-                
-        except Exception as e:
-            logger.error(f"Task execution error: {str(e)}")
-            raise
+                    action_start = time.time()
+                    result = await self._executeAction(action)
+                    action.processingTime = time.time() - action_start
 
-    async def parseTaskResult(self, workflow: ChatWorkflow, result: TaskResult) -> None:
+                    # Validate result
+                    if not result.success:
+                        error_msg = result.error or "Unknown error"
+                        action.setError(error_msg)
+                        
+                        # Create error message
+                        error_message = ChatMessage(
+                            workflowId=task.workflowId,
+                            message=f"{action.execMethod}.{action.execAction}.error: {error_msg}",
+                            role="system",
+                            status="step",
+                            sequenceNr=0,  # Will be set by workflow
+                            publishedAt=datetime.now(UTC).isoformat(),
+                            success=False,
+                            actionId=action.id,
+                            actionMethod=action.execMethod,
+                            actionName=action.execAction
+                        )
+                        
+                        # Add error message to workflow
+                        await self._addMessageToWorkflow(task.workflowId, error_message)
+                        
+                        # If action failed and we have retries left, retry
+                        if action.retryCount < action.retryMax:
+                            action.retryCount += 1
+                            continue
+                            
+                        # If we're out of retries, fail the task
+                        task.error = f"Action {action.id} failed after {action.retryCount} retries: {error_msg}"
+                        task.status = TaskStatus.FAILED
+                        return task
+
+                    # Process successful result
+                    action.setSuccess()
+                    
+                    # Set result label from AI response if provided
+                    if result.data.get("resultLabel"):
+                        action.execResultLabel = result.data["resultLabel"]
+                    
+                    # Create result message with documents if any
+                    if result.data.get("documents"):
+                        # Store AI-generated documents in database and create ChatDocuments
+                        documents = []
+                        for doc in result.data["documents"]:
+                            # Create document (which also creates the file)
+                            document = await self.service.createDocument(
+                                fileName=doc["filename"],
+                                mimeType=doc["mimeType"],
+                                content=doc["content"],
+                                base64encoded=doc["base64Encoded"]
+                            )
+                            documents.append(document)
+                            
+                        # Create success message with documents
+                        success_message = ChatMessage(
+                            workflowId=task.workflowId,
+                            message=f"{action.execMethod}.{action.execAction}",
+                            role="system",
+                            status="step",
+                            sequenceNr=0,  # Will be set by workflow
+                            publishedAt=datetime.now(UTC).isoformat(),
+                            documents=documents,
+                            documentsLabel=action.execResultLabel,  # Use the label from action
+                            success=True,
+                            actionId=action.id,
+                            actionMethod=action.execMethod,
+                            actionName=action.execAction
+                        )
+                        
+                        # Add success message to workflow
+                        await self._addMessageToWorkflow(task.workflowId, success_message)
+                    
+                    # Store result labels
+                    if result.data.get("labels"):
+                        task.resultLabels.update(result.data["labels"])
+
+                except Exception as e:
+                    error_msg = str(e)
+                    action.setError(error_msg)
+                    
+                    # Create error message
+                    error_message = ChatMessage(
+                        workflowId=task.workflowId,
+                        message=f"{action.execMethod}.{action.execAction}.error: {error_msg}",
+                        role="system",
+                        status="step",
+                        sequenceNr=0,  # Will be set by workflow
+                        publishedAt=datetime.now(UTC).isoformat(),
+                        success=False,
+                        actionId=action.id,
+                        actionMethod=action.execMethod,
+                        actionName=action.execAction
+                    )
+                    
+                    # Add error message to workflow
+                    await self._addMessageToWorkflow(task.workflowId, error_message)
+                    
+                    # If action failed and we have retries left, retry
+                    if action.retryCount < action.retryMax:
+                        action.retryCount += 1
+                        continue
+                        
+                    # If we're out of retries, fail the task
+                    task.error = f"Action {action.id} failed after {action.retryCount} retries: {error_msg}"
+                    task.status = TaskStatus.FAILED
+                    return task
+
+            # Check if all actions were successful
+            if all(action.isSuccessful() for action in task.actionList):
+                task.status = TaskStatus.COMPLETED
+                task.feedback = "Task completed successfully"
+                
+                # Create chat message with results
+                message = ChatMessage(
+                    workflowId=task.workflowId,
+                    message=task.feedback,
+                    role="system",
+                    status="last",
+                    sequenceNr=0,  # Will be set by workflow
+                    publishedAt=datetime.now(UTC).isoformat(),
+                    success=True
+                )
+                
+                # Add message to workflow
+                await self._addMessageToWorkflow(task.workflowId, message)
+                
+            else:
+                # If any action failed, fail the task
+                task.status = TaskStatus.FAILED
+                task.error = "One or more actions failed"
+                
+                # Create error message
+                error_message = ChatMessage(
+                    workflowId=task.workflowId,
+                    message=f"Task failed: {task.getErrorMessage()}",
+                    role="system",
+                    status="last",
+                    sequenceNr=0,  # Will be set by workflow
+                    publishedAt=datetime.now(UTC).isoformat(),
+                    success=False
+                )
+                
+                # Add error message to workflow
+                await self._addMessageToWorkflow(task.workflowId, error_message)
+
+            # Calculate processing time
+            task.processingTime = time.time() - start_time
+            task.finishedAt = datetime.now(UTC).isoformat()
+
+            return task
+
+        except Exception as e:
+            # Handle unexpected errors
+            task.status = TaskStatus.FAILED
+            task.error = str(e)
+            task.finishedAt = datetime.now(UTC).isoformat()
+            
+            # Create error message
+            error_message = ChatMessage(
+                workflowId=task.workflowId,
+                message=f"Task failed with unexpected error: {task.getErrorMessage()}",
+                role="system",
+                status="last",
+                sequenceNr=0,  # Will be set by workflow
+                publishedAt=datetime.now(UTC).isoformat(),
+                success=False
+            )
+            
+            # Add error message to workflow
+            await self._addMessageToWorkflow(task.workflowId, error_message)
+            
+            return task
+
+    async def parseTaskResult(self, workflow: ChatWorkflow, task: TaskItem) -> None:
         """Process and store task result in workflow"""
         try:
-            # Find task in workflow
-            task = self.service.getTask(result.taskId)
-            if not task:
-                logger.error(f"Task {result.taskId} not found in workflow")
-                return
-
-            # Update task status
-            self.service.updateTask(task.id, {
-                "status": result.status,
-                "error": result.error,
-                "finishedAt": datetime.now(UTC).isoformat()
-            })
-
             # Create feedback message if available
-            if result.feedback:
+            if task.feedback:
                 message = ChatMessage(
                     id=str(uuid.uuid4()),
                     workflowId=workflow.id,
                     role="assistant",
-                    message=result.feedback,
+                    message=task.feedback,
                     status="step",
-                    documents=result.documents
+                    documents=task.getResultDocuments()
                 )
                 self.service.createWorkflowMessage(message.dict())
 
             # Update workflow stats
-            if result.processingTime:
+            if task.processingTime:
                 if not workflow.stats:
                     workflow.stats = ChatStat()
-                workflow.stats.processingTime = (workflow.stats.processingTime or 0) + result.processingTime
+                workflow.stats.processingTime = (workflow.stats.processingTime or 0) + task.processingTime
                 self.service.updateWorkflow(workflow.id, {"stats": workflow.stats.dict()})
 
         except Exception as e:
@@ -593,4 +704,78 @@ Rules:
 4. Include file extensions in filenames
 
 Return a JSON array of Document objects.
-""" 
\ No newline at end of file
+"""
+
+    def _createTaskDefinitionPrompt(self, userInput: str, workflow: ChatWorkflow) -> str:
+        """Create prompt for task definition"""
+        # Get available methods
+        methodList = self.service.getMethodsList()
+        
+        # Get workflow history
+        messageSummary = self.service.getMessageSummary(workflow.messages[-1] if workflow.messages else None)
+        
+        # Get available documents and connections
+        docRefs = self.service.getDocumentReferenceList()
+        connRefs = self.service.getConnectionReferenceList()
+        
+        prompt = f"""
+Task Definition for: {userInput}
+
+Available Methods:
+{chr(10).join(f"- {method}" for method in methodList)}
+
+Workflow History:
+{chr(10).join(f"- {msg['message']}" for msg in messageSummary.get('chat', []))}
+
+Available Documents:
+{chr(10).join(f"- {doc['documentReference']} ({doc['datetime']})" for doc in docRefs.get('chat', []))}
+
+Available Connections:
+{chr(10).join(f"- {conn}" for conn in connRefs)}
+
+Instructions:
+1. Result Format (JSON):
+{{
+    "status": "pending|running|completed|failed",
+    "feedback": "string explaining what was done and what needs to be done next",
+    "actions": [
+        {{
+            "method": "string",
+            "action": "string",
+            "parameters": {{
+                "param1": "value1",
+                "param2": "value2"
+            }},
+            "resultLabel": "documentList_<uuid>_<label>"
+        }}
+    ]
+}}
+
+2. Available Data:
+   - Use only provided document references (format: document_<id>_<filename> or documentList_<action.id>_<label>)
+   - Use only provided connection references
+   - Use result labels from previous actions in the same task
+
+3. Method Usage Rules:
+   - Syntax: method.action([parameter:type])->resultLabel:type
+   - resultLabel format: documentList_<uuid>_<label>
+   - Actions must be in processing sequence
+   - Parameters must be from:
+     * Available document references
+     * Available connection references
+     * Result labels from previous actions
+
+4. Result Labels:
+   - Use consistent naming for related documents
+   - Include descriptive labels for document sets
+   - Labels will be used to track document sets in messages
+
+5. Error Handling:
+   - Include validation for each action
+   - Specify retry behavior if needed
+   - Provide clear error messages
+   - Errors will be recorded in messages with .error: suffix
+
+Please provide the task definition in JSON format following these rules.
+"""
+        return prompt 
\ No newline at end of file
diff --git a/modules/workflow/serviceContainer.py b/modules/workflow/serviceContainer.py
index 263f4ad6..aad6fc09 100644
--- a/modules/workflow/serviceContainer.py
+++ b/modules/workflow/serviceContainer.py
@@ -13,6 +13,8 @@ from modules.interfaces.serviceChatClass import getInterface as getChatInterface
 from modules.interfaces.serviceManagementClass import getInterface as getFileInterface
 from modules.workflow.managerDocument import DocumentManager
 from modules.methods.methodBase import MethodBase
+import uuid
+import base64
 
 logger = logging.getLogger(__name__)
 
@@ -25,6 +27,7 @@ class ServiceContainer:
         self.workflow = workflow
         self.tasks = workflow.tasks
         self.statusEnums = TaskStatus
+        self.currentTask = None  # Initialize current task as None
         
         # Initialize managers
         self.interfaceChat = getChatInterface(currentUser)
@@ -77,27 +80,129 @@ class ServiceContainer:
         return self.methods
     
     def getMethodsList(self) -> List[str]:
-        """Get list of available methods"""
-        return list(self.methods.keys())
+        """Get list of available methods with their signatures"""
+        methodList = []
+        for methodName, method in self.methods.items():
+            for actionName, action in method.actions.items():
+                # Get parameter types and return type from action signature
+                paramTypes = []
+                for paramName, param in action.parameters.items():
+                    paramTypes.append(f"{paramName}:{param.type}")
+                
+                # Format: method.action([param1:type, param2:type])->resultLabel:type # description
+                signature = f"{methodName}.{actionName}([{', '.join(paramTypes)}])->{action.resultLabel}:{action.resultType}"
+                if action.description:
+                    signature += f" # {action.description}"
+                methodList.append(signature)
+        return methodList
     
     def getDocumentReferenceList(self) -> Dict[str, List[Dict[str, str]]]:
-        """Get list of document references sorted by datetime"""
+        """Get list of document references sorted by datetime, categorized by chat round"""
+        chat_refs = []
+        history_refs = []
+        
+        # Process messages in reverse order to find current chat round
+        for message in reversed(self.workflow.messages):
+            # Get document references from message
+            if message.documents:
+                # For messages with action context, use documentList reference
+                if message.actionId and message.documentsLabel:
+                    doc_ref = self.getDocumentReferenceFromMessage(message)
+                    doc_info = {
+                        "documentReference": doc_ref,
+                        "datetime": message.publishedAt
+                    }
+                    
+                    # Add to appropriate list based on message status
+                    if message.status == "first":
+                        chat_refs.append(doc_info)
+                        break  # Stop after finding first message
+                    elif message.status == "step":
+                        chat_refs.append(doc_info)
+                    else:
+                        history_refs.append(doc_info)
+                # For regular messages, use individual document references
+                else:
+                    for doc in message.documents:
+                        doc_ref = self.getDocumentReferenceFromChatDocument(doc)
+                        doc_info = {
+                            "documentReference": doc_ref,
+                            "datetime": message.publishedAt
+                        }
+                        
+                        # Add to appropriate list based on message status
+                        if message.status == "first":
+                            chat_refs.append(doc_info)
+                            break  # Stop after finding first message
+                        elif message.status == "step":
+                            chat_refs.append(doc_info)
+                        else:
+                            history_refs.append(doc_info)
+            
+            # Stop processing if we hit a first message
+            if message.status == "first":
+                break
+        
+        # Sort both lists by datetime in descending order
+        chat_refs.sort(key=lambda x: x["datetime"], reverse=True)
+        history_refs.sort(key=lambda x: x["datetime"], reverse=True)
+        
         return {
-            "chat": self._getChatDocumentReferences(),
-            "history": self._getHistoryDocumentReferences()
+            "chat": chat_refs,
+            "history": history_refs
         }
     
     def getDocumentReferenceFromChatDocument(self, document: ChatDocument) -> str:
         """Get document reference from ChatDocument"""
         return f"document_{document.id}_{document.filename}"
     
-    def getDocumentReferenceFromTaskResult(self, result: TaskResult) -> str:
-        """Get document reference from TaskResult"""
-        return f"documentList_{result.id}_{result.documentsLabel}"
+    def getDocumentReferenceFromMessage(self, message: ChatMessage) -> str:
+        """Get document reference from ChatMessage with action context"""
+        if not message.actionId or not message.documentsLabel:
+            return None
+            
+        # If documentsLabel already contains the full reference format, return it
+        if message.documentsLabel.startswith("documentList_"):
+            return message.documentsLabel
+            
+        # Otherwise construct the reference
+        return f"documentList_{message.actionId}_{message.documentsLabel}"
     
     def getChatDocumentsFromDocumentReference(self, documentReference: str) -> List[ChatDocument]:
         """Get ChatDocuments from document reference"""
-        return self.documentManager.getDocumentsByReference(documentReference)
+        try:
+            # Parse reference format
+            parts = documentReference.split('_', 2)  # Split into max 3 parts
+            if len(parts) < 3:
+                return []
+                
+            ref_type = parts[0]
+            ref_id = parts[1]
+            ref_label = parts[2]  # Keep the full label
+            
+            if ref_type == "document":
+                # Handle ChatDocument reference: document_<id>_<filename>
+                # Find document in workflow messages
+                for message in self.workflow.messages:
+                    if message.documents:
+                        for doc in message.documents:
+                            if doc.id == ref_id:
+                                return [doc]
+                                
+            elif ref_type == "documentList":
+                # Handle document list reference: documentList_<action.id>_<label>
+                # Find message with matching action ID and documents label
+                for message in self.workflow.messages:
+                    if (message.actionId == ref_id and 
+                        message.documentsLabel == documentReference and  # Compare full reference
+                        message.documents):
+                        return message.documents
+                            
+            return []
+            
+        except Exception as e:
+            logger.error(f"Error getting documents from reference {documentReference}: {str(e)}")
+            return []
     
     def getConnectionReferenceList(self) -> List[Dict[str, str]]:
         """Get list of connection references sorted by authority"""
@@ -130,9 +235,42 @@ class ServiceContainer:
         """Call AI image service"""
         return self.interfaceAi.callAiImage(imageData, mimeType, prompt)
     
-    def createFile(self, fileName: str, mimeType: str, content: bytes, base64encoded: bool = False) -> Dict[str, Any]:
-        """Create new file"""
-        return self.interfaceFiles.createFile(fileName, mimeType, content, base64encoded)
+    def createFile(self, fileName: str, mimeType: str, content: str, base64encoded: bool = False) -> str:
+        """Create new file and return its ID"""
+        # Convert content to bytes based on base64 flag
+        if base64encoded:
+            content_bytes = base64.b64decode(content)
+        else:
+            content_bytes = content.encode('utf-8')
+            
+        # First create the file metadata
+        file_item = self.interfaceFiles.createFile(
+            name=fileName,
+            mimeType=mimeType,
+            size=len(content_bytes)
+        )
+        
+        # Then store the file data
+        self.interfaceFiles.createFileData(file_item.id, content_bytes)
+        
+        return file_item.id
+    
+    def createDocument(self, fileName: str, mimeType: str, content: str, base64encoded: bool = True) -> ChatDocument:
+        """Create document from file data object created by AI call"""
+        # First create the file and get its ID
+        file_id = self.createFile(fileName, mimeType, content, base64encoded)
+        
+        # Get file info for metadata
+        file_info = self.interfaceFiles.getFile(file_id)
+        
+        # Create document with file reference
+        return ChatDocument(
+            id=str(uuid.uuid4()),
+            fileId=file_id,
+            filename=fileName,
+            fileSize=file_info.fileSize,
+            mimeType=mimeType
+        )
     
     def getFileInfo(self, fileId: str) -> Dict[str, Any]:
         """Get file information"""
diff --git a/notes/changelog.txt b/notes/changelog.txt
index 7e04221c..590ae63f 100644
--- a/notes/changelog.txt
+++ b/notes/changelog.txt
@@ -1,4 +1,25 @@
-Prompt for task definition:
+TODO
+- documenthandling to review with document-file-filedata --> redundant and too complex --> to have ChatDocument with label and reference to fileid with function to get metadate directly from file object
+- prompt for task definition to fix
+- implement all functions from service object correctly
+- result parsing: execute task actions by using data references stepwise, all documents in TaskResults to save as ChatDocuments, to be available for next action.
+- action execution: to use conversion functions, user DocumentReference and ConnectionReference
+
+ADAPT:
+
+can you analyse the following specification:
+- clear what is required?
+- clear what to do?
+- questions?
+please give a summarized feedback before implementing
+
+
+How does the task process need to work:
+- specification for task-prompt below ensures, that a json with actions is produced, where references are clear, always having uuid integrated, only valid references
+- ai call result to be validated against json specification before proceeding, proper error handling for retry or abort depending on error (e.g. is ai down then to abort, if ai error to proceed with error to potentially fix it, etc.)
+- then to process the action list.
+
+Resulting specification Prompt for task definition:
   - original user input (summary)
   - prompt for task to do
   - method list
@@ -9,16 +30,14 @@ Prompt for task definition:
     - rules for result: status (enum), feedback (to tell what is done and what needed next. Only to to the tasks, which are possible with the available methods, referencing and data, rest to do in next round)
     - available data to use: list of documentReference, list of connectionReference
     - methods usage:
-      - syntax: method.action([parameter:type])->resultLabel:type
+      - syntax: method.action([parameter:type])->resultLabel:type (reference note: resultLabel to be stored in TaskAction.execResultLabel for later use)
+      - resultLabel to be in format documentList_<generated uuid>_<generated label>
       - sequence of method.action to be the sequence ot processing
-      - as parameter only to use available items of documentReference and connectionReference or resultLabel of a previous method.action
-    - required result format: json for TaskResult, nothing else
+      - as parameter only to use available items of documentReference or connectionReference or resultLabel from a previous method.action
+    - required result format: json, nothing else
 
 
-TODO
-- result parsing: execute task actions by using data references stepwise, all documents in TaskResults to save as ChatDocuments, to be available for next action.
-- action execution: to use conversion functions, user DocumentReference and ConnectionReference
-
+FINALIZE:
 
 service (ServiceContainer)
 	user <-- currentUser
@@ -37,11 +56,11 @@ service (ServiceContainer)
     sharepoint.download([connectionReference:str, filepath:str])->documentReference:str
 			
 	functions
-		extractContent(prompt,documentReference):str <- managerDocument.extractContent(prompt,FilePreview)
-		getMethodsCatalog():{...} <- to import dynamically all methods from the files "method*.py" in folder modules/methods
-		getMethodsList():[str] <- to transform result from getMethodsCatalog into a list with the method items in format "method.action([parameter:type])->resultLabel:type"
+ok		extractContent(prompt,documentReference):str <- managerDocument.extractContent(prompt,FilePreview)
+ok		getMethodsCatalog():{...} <- to import dynamically all methods from the files "method*.py" in folder modules/methods
+ok		getMethodsList():[str] <- to transform result from getMethodsCatalog into a list with the method items in format "method.action([parameter:type])->resultLabel:type # description"
 
-    getDocumentReferenceList():{"chat":[{"documentReference":str,"datetime":str}],"history":[{"documentReference":str,"datetime":str}]} sorted by datetime desc
+ok    getDocumentReferenceList():{"chat":[{"documentReference":str,"datetime":str}],"history":[{"documentReference":str,"datetime":str}]} sorted by datetime desc
     getDocumentReferenceFromChatDocument(ChatDocument):"document_"+ChatDocument.id+"_"+ChatDocument.filename
     getDocumentReferenceFromTaskResult(TaskResult):"documentList_"+TaskResult.id+"_"+TaskResult.documentsLabel
     getChatDocumentsFromDocumentReference(documentReference):List[ChatDocuments]