I've been (grudgingly) using Claude since February.

When I started, I discovered to my shock that it was by far the worst TUI I had ever touched. Rendering glitches, keyboard input screwups, and just all-around jankiness.

Despite that awful baseline, I have to agree that it's gotten noticably worse in the past week or so.

It's started mangling my terminal sessions somehow, so that not all characters I input are visible in the UI.

Backgrounding it, doing a 'reset', then re-foregrounding seems to fix it.

Of course when I asked it to diagnose the problem, it assured me that Claude has no such big and it must be something else I'm running.

All I'm running is tmux and Claude, though, and the behavior surfaced while I was running Claude.

So, yeah - if they just recently updated Claude to use the Rust rewrite, this increased crappiness might actually be due to that. It does seem to at least roughly correlate.