[EMM_386]

The problem is they are using the Ink library which clears and redraws for each update.

https://github.com/anthropics/claude-code/issues/769

I locally patched the closed-source CLI npm package but it's not perfect. They would have to switch how their TUI is rendered on their side.

Apparently OpenAI Codex is rust+ratatui which does not have this issue.

[thomasahle]

I'm always surprised that Python doesn't have as good TUI libraries as Javascript or Rust. With the amount of CLI tooling written in Python, you'd think it had better libraries than any other language.

[wonger_]

Blessed was a decent one iirc:

https://github.com/jquast/blessed

One reason for the lack of python might be the timing of the TUI renaissance, which I think happened (is happening?) alongside the rise of languages like Go and Rust.

[behnamoh]

it has, but python being single threaded (until recently) didn't make it an attractive choice for CLI tools.

example: `ranger` is written in python and it's freaking slow. in comparison, `yazi` (Rust) has been a breeze.

Edit: Sorry, I meant GIL, not single thread.

[acdha]

Textual looks really nice, but I usually make web apps so I haven’t tried it for anything serious:

https://textual.textualize.io/

[blks]

I’m using Textual for my TUI needs, it’s very decent.

[jschlatter]

They started with Ink but have since switched to their own renderer:

> We originally built Claude Code on Ink, a React renderer for the terminal. [...] Over the past few months, we've rewritten our rendering system from scratch (while still using React).

https://github.com/anthropics/claude-code/issues/769#issueco...

[cududa]

Thanks for sharing. Very … interesting. Just trying to understand why the heck would React be the best tool here?

[lifetimerubyist]

React?!

Good grief get me off this sloppy ride.

[behnamoh]

then maybe they should've bought and fixed Ink instead of bun, just saying!

[reissbaker]

FWIW, Ink is working on an incremental rendering system: they have a flag to enable it. It's currently pretty buggy though unfortunately. Definitely wish Anthropic would commit some resources back to the project they're built on to help fix it...