Where does the bug appear (feature/product)? Cursor IDE Describe the Bug Agent window width is VERY NARROW. I am using high resolution (4k+) and this latest update made the agent frame like 1/5th of the screen wide for the text.. even expanding the window to full width the text does not expand like…

Hi @f00z Thanks for reporting this. Can you clarify whether this is the agent manager pane that lists all your open and prior agent chats, or the chat box? Please provide a screenshot if you can. Thanks!

It’s both, the agent chatlog pane, and the ‘chat history’ button. The agent chatlog was fine before (where you talk to the agent. Even the text input box at the bottom doesn’t scale width wise as it did before. it just has huge empty space on the left and right no matter how large I make the pane…

Thanks for the screenshot! There is a workaround. You can add something like this to your settings.json file: "cursor.chatMaxWidth": 2000, 2000 was plenty big for me, but you can adjust higher depending on your monitor width This removed the empty space on the sides and allowed the chat window t…

That’s an unknown key in the json, greyed out. I tried it but didn’t do anything yet but i haven’t restarted. It’s also SUPER LAGGY when the agent is working the rest of the program barely works, i can type but none of the popups work, opening files doesn’t work, preview doesn’t work, or it works …

Can you double-check that it’s your cursor user settings.json file? Do you want to paste a snippet of what your file looks like? Here’s the prompt that I used in agent mode: can you put this in my cursor settings? "cursor.chatMaxWidth": 1200 It should apply immediately. If it does not, it’s a go…

The agent can’t help with the settings because i’m using remote-ssh, so i open the menu and go to open user settings json (control shift p, open user settings (json)) I put it in that file and it says it’s not a valid key “Unknown configuration setting” when i hover over it. This is the settings f…

Same issue here. The old setting (cursor.chatMaxWidth) no longer works in recent versions. Current workaround is a CSS override: Go to: C:\Users\<you>\AppData\Local\Programs\Cursor\resources\app\out\vs\workbench\ Edit workbench.desktop.main.css and append: .chat, [class*="chat"], [class*="Chat…

Hi @here Just following up that this feature is fully supported in the latest Cursor releases. You can use a prompt like this to adjust, .e.g., can you put this in my cursor settings? "cursor.chatMaxWidth": 1200 Perfect for the ultrawide monitor fans.

This setting still does not work in the latest Cursor version 3.1.x and we still need to go via manually adjusting the css file.

Agent window/frame not resizing width

Support Bug Reports

kevinn (Kevin Neilson) April 1, 2026, 9:37pm 15

I just wanted to follow up here, I jumped the gun a bit. This setting is fully supported in nightly (2.7.x) right now but yet but public release (which is on 2.6.x).

Check out this post for a 2.6.x workaround, or you can wait for the 2.7 update

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Agent window/frame not resizing width

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