# Chat sessions

Chat sessions store one resume token per engine per chat (per sender in group chats), so new messages can auto-resume without replying. Reply-to-continue still works and updates the stored session for that engine.

## Enable chat sessions

```toml
[transports.telegram]
session_mode = "chat" # stateless | chat
```

With `session_mode = "chat"`, new messages in the chat continue the current thread automatically.

## Reset a session

Use `/new` to clear the stored session for the current scope:

- In a private chat, it resets the chat.
- In a group, it resets **your** session in that chat.
- In a forum topic, it resets the topic session.

See `/new` in [Commands & directives](../reference/commands-and-directives.md).

## Resume lines and branching

Chat sessions do not remove reply-to-continue. If resume lines are visible, you can reply to any older message to branch the conversation.

If you prefer a cleaner chat, hide resume lines:

```toml
[transports.telegram]
show_resume_line = false
```

## How it behaves in groups

In group chats, Takopi stores a session per sender, so different people can work independently in the same chat.

## Related

- [Conversation modes](../tutorials/conversation-modes.md)
- [Forum topics](topics.md)
- [Commands & directives](../reference/commands-and-directives.md)