anthropics
[BUG] Semi-infinite scrolling in terminal
Environment
- Platform (select one):
- [ ] Anthropic API
- Claude CLI version: 1.0.24
- Operating System: MacOS Sequoia 15.5
- Terminal: iTerm
Bug Description
Not sure how to describe. The code randomly starts infinitely scrolling through the terminal content. It eventually stops. It seems to happen a lot when plan is enabled. After selecting Yes, it tends to scroll infinitely through the content again, but eventually stabilizes although sometimes it crashes.
Steps to Reproduce
It's random. I can't reproduce but it keeps happening. I would be surprised if this was only happening for me.
Expected Behavior
No infinite scrolling.
Actual Behavior
Infinite scrolling
Additional Context
NA
I still have the problem using WSL in vs code but i believe i have used in just plain wsl and still gett he issue
This issue seems to be related to https://github.com/anthropics/claude-code/issues/769
I have the same issue. At seemingly random times, between 3 and 10 minutes of usage, a screen full of previous text would continue to scroll for seconds and sometimes minutes. There were times I was worried that all that text would cause the token usage to exceed some quotas, so I killed the process after scrolling for minutes. Restarting Claude Code didn't seem to help.
- Ghosty terminal
- macOS Silicon
- Max 200 plan
- Claude Code Status v1.0.43
Are you guys ever planning to fix this? It is a major drag on productivity and gives me a headache!
now I am getting this error after it happens:
node:events:502
throw er; // Unhandled 'error' event
^
Error: write ENOBUFS
at afterWriteDispatched (node:internal/stream_base_commons:159:15)
at writevGeneric (node:internal/stream_base_commons:142:3)
at Socket._writeGeneric (node:net:969:11)
at Socket._writev (node:net:978:8)
at doWrite (node:internal/streams/writable:596:12)
at clearBuffer (node:internal/streams/writable:775:5)
at onwrite (node:internal/streams/writable:653:7)
at WriteWrap.onWriteComplete [as oncomplete] (node:internal/stream_base_commons:105:10)
Emitted 'error' event on WriteStream instance at:
at emitErrorNT (node:internal/streams/destroy:170:8)
at emitErrorCloseNT (node:internal/streams/destroy:129:3)
at process.processTicksAndRejections (node:internal/process/task_queues:90:21) {
errno: -55,
code: 'ENOBUFS',
syscall: 'write'
}
Node.js v22.13.0
This is affecting me as well. Nothing new to add to the bug report, but I'm leaving a comment to add weight to the ticket.
This is affecting me as well. I don’t have anything new to add to the bug report, but I’m leaving a comment to support the ticket. I’m using Terminal and MCP Serena
I experienced this as well, then remembered that I had set my iTerm "Scrollback lines" setting to "unlimited scrollback".
I changed that to 5,000 lines instead, and I haven't experienced the issue since. Yes, I still get little blips where I see some very fast scrolling through terminal line history. But they only last a few seconds instead of multiple minutes.
There are a couple of ways to recreate this. The main way is if you paste a large block of text while it is thinking. This used to crash it all the time. I learned not to do this, so I don't know if this still works, but it was reliable before.
also happens in Claude Code in the Terminal in VSCode Remote from windows onto a Linux host with IDE integration enabled. I'm now trying a Claude app window in VSCode itself Claude Code v1.0.98
This seems to be a terminal issue not a claude code issue. I have the same issue with auggie-cli....
On Mon, Sep 1, 2025 at 1:40 AM M Lange @.***> wrote:
Shadyman left a comment (anthropics/claude-code#2118) https://github.com/anthropics/claude-code/issues/2118#issuecomment-3240924154
also happens with VSCode Remote from windows onto linux. Claude Code v1.0.98
— Reply to this email directly, view it on GitHub https://github.com/anthropics/claude-code/issues/2118#issuecomment-3240924154, or unsubscribe https://github.com/notifications/unsubscribe-auth/ACTWE74OPYO6AL44FQZYKZD3QPL4DAVCNFSM6AAAAAB7LTBVUGVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTENBQHEZDIMJVGQ . You are receiving this because you authored the thread.Message ID: @.***>
It seems to trigger whenever Claude displays something that's larger than the working area of the chat portion of the screen (ie, not the text box, status line, etc.)
Large MCP executions, large summaries, etc, basically anything that scrolls off the end of the screen. It seems to want to re-scroll (re-draw?) every time a new line is output or a new key is pressed until it's done whatever it does during the scroll-fest.
This is a HUGE ux impediment and needs urgent fix. I also find that keystrokes including ESC do not get registered while the infinite scrolling is ongoing
Doing CTRL + T or CTRL + O multiple times it fixes the problem but not everytime its better than nothing i guess
Everyone on my team has this problem. Any time the output is too long it seems that Claude goes nuts with scrolling until it prints the next thing. This happens all day long and it is a huge issue as I can't really type. I wouldn't be surprised if it could be medically dangerous for people who have strobe sensitivities.
I've seen this inside:
VSCode on Windows to Ubuntu PuTTY on Windows to Ubuntu KiTTY on Windows to Ubuntu
It has persisted since Claude 1.x all the way up to v2.0.21 (just updated tonight).
Bump. Also seems related to https://github.com/anthropics/claude-code/issues/826
This is a significant UX issue. The only "workaround" I've found is to frequently start new sessions (entirely close out Claude Code + start in fresh sessions with no previous context).
