> ## Documentation Index
> Fetch the complete documentation index at: https://kapso-1adbad2d.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Special Nodes

> Essential entry and exit points for Agent Graphs

Special Nodes are the foundational entry and exit points for every Agent Graph. These nodes have specific roles and behaviors that cannot be modified or deleted.

## Start Node

### Purpose & Functionality

The Start Node serves as the entry point for all conversations. Every execution flow begins here.

* It is automatically included in every Agent Graph
* Cannot be deleted
* Always has an "initial" label
* Execution always begins at this node

### Configuration

The Start Node requires no specific configuration.

### Best Practices

* Connect the Start Node to appropriate initial conversation nodes
* Consider different entry points based on conversation channel or context
* For WhatsApp flows, often connect to a WhatsApp Template Node for the first message

## End Node

### Purpose & Functionality

The End Node represents an immediate termination point for a conversation path.

* It is automatically included in every Agent Graph
* Cannot be deleted
* Always has an "end" label
* When reached, execution immediately stops (in contrast to the Warm End Node which allows for a grace period)

### Configuration

The End Node requires no specific configuration.

## Comparison: End Node vs. Warm End Node

| Feature         | End Node                               | Warm End Node            |
| --------------- | -------------------------------------- | ------------------------ |
| Termination     | Immediate                              | After timeout            |
| Final Questions | Not allowed                            | Permitted within timeout |
| Closing Message | Not built-in (requires preceding node) | Configured in prompt     |
| Timeout Setting | N/A                                    | Configurable             |
| Use Case        | Definitive conclusion                  | Graceful conclusion      |

## Related Nodes

<CardGroup cols={3}>
  <Card title="Default Node" icon="message" href="./default-node">
    The most versatile node for general conversation
  </Card>

  <Card title="Warm End Node" icon="door-open" href="./warm-end-node">
    Gracefully conclude conversations
  </Card>

  <Card title="Handoff Node" icon="user" href="./handoff-node">
    Transfer conversations to human operators
  </Card>
</CardGroup>