Add chat autocompletion and the /clear command

[jtpio]

Slash commands are useful to perform regular actions, such as clearing the history of messages.

This adds a IAutocompletionRegistry to register /clear and be able to clear the chat history.

jupyterlite-ai-clear-command.mp4

[jtpio]

We may also need to apply the same trick as in jupyterlab/jupyter-chat#159.

[brichet]

Thanks for looking into it @jtpio.

FYI there may be some changes in the way the autocompletion are handled and registered in jupyter-chat:

• Design proposal: Chat Completions API (rev. 1.1) jupyterlab/jupyter-chat#144
• Define a new framework for chat commands jupyterlab/jupyter-chat#161

[jtpio]

FYI there may be some changes in the way the autocompletion are handled and registered in jupyter-chat:

Thanks for the heads-up. Sounds good, we can adapt here after updating to a new version of jupyter-chat.

[brichet]

There seems to be an issue with keyboard when displaying and hiding the completer suggestion.
In the example below, pressing enter should send the message, but does not work anymore if the autocomplion has been opened

record-2025-02-14_11.13.18.webm

I think that it is an issue with jupyter-chat, I will make some tests there.

[brichet]

We should also clear the message history this._history.messages, to avoid sending cleared messages.

This makes me realize that the history seems to never be cleared, which could lead to a huge message list. I'll open an issue on this.

[jtpio]

In the example below, pressing enter should send the message, but does not work anymore if the autocomplion has been opened

It also seems to be an issue with the Jupyter AI v3 pre-release. For example when testing from the main branch of https://github.com/jupyterlab/jupyter-ai:

jupyter-chat-enter-key-issue.mp4

So yes, it is likely an issue in jupyter-chat.

[brichet]

Thanks @jtpio, looks great.

I also tested the linting error on MUI icons, it works well 👍