> ## Documentation Index
> Fetch the complete documentation index at: https://docs.elkar.co/llms.txt
> Use this file to discover all available pages before exploring further.

# Task updates

> List of supported task modifier udpates

To simplify task management, Elkar provides a `TaskModifier` class with five core methods. These methods handle interactions with the store and queue, allowing you to focus on task logic directly.

1. **Get Task**

Retrieves a task, either from the store or via the method.

```python theme={null}
await task_modifier.get_task(
	from_store=False # Set to True to fetch from the store 
)
```

2. **Get Task Send Params**

Fetches the parameters needed to send a task.

```python theme={null}
await task_modifier.get_task_send_params()
```

3. **Status Update**

Describes the state of the task and the agent's progress. Messages in the status are appended to the task's history.

```python theme={null}
await task_modifier.set_status(
    TaskStatus(
        state=TaskState.COMPLETED,
        message=Message(parts=[TextPart(text="I've finished the task!")])
    )
)
```

4. **Artifact Update**

Artifacts represent the result of the task. Indices are used to identify artifacts within a task. Updates append to existing artifacts if the index matches and the chunk is not the last one.

```python theme={null}
await task_modifier.upsert_artifact(
    Artifact(parts=[TextPart(text="I've finished the task!")], index=0)
)
```

5. **Append Messages to History**

Stores relevant information, such as thoughts or past communications, related to the task.

```python theme={null}
await task_modifier.add_messages_to_history(
    [Message(parts=[TextPart(text="I'm working on the task...")])]
)
```