Let Cmd+W, Return close a terminal (Return currently cancels the close confirmation)

[kyle944]

On macOS, pressing Cmd+W in a focused integrated terminal opens the "Close terminal?" confirmation. Pressing Return then cancels it, so Cmd+W, Return leaves the terminal open. The natural keyboard flow for closing a terminal does nothing.

Steps to reproduce (T3 Code Nightly 0.0.46-nightly.20261012.3021, macOS desktop):

1. Open and focus an integrated terminal.
2. Press Cmd+W. The "Close terminal?" dialog opens.
3. Press Return. The dialog closes and the terminal stays open.

Why it happens, against main at 511d20c6: confirmTerminalClose in apps/web/src/lib/terminalCloseConfirm.ts goes through the shared ConfirmDialogHost with variant: "destructive". The host passes no initialFocus, so Base UI focuses the first button, Cancel, and Return activates it. I understand this is deliberate. The triage of #13427 kept destructive confirms Cancel-first, and #18187 preserves that, so this case won't change when that PR lands. That is why this is an Idea and not a bug report.

The case for treating terminal close differently: Cmd+W is already a deliberate keystroke, and the dialog is a second check on it. macOS Terminal and iTerm2 both make "Terminate"/"Close" the default button in their equivalent prompt, so Cmd+W, Return closes the window there. Having to press Tab before Return, or reach for the mouse, makes the keyboard path slower than in the terminals people are used to. Thread delete and the other destructive prompts would keep Cancel focus.

Two possible directions, either of which would solve it:

1. Let the terminal-close confirm focus Confirm on open (for example via the opt-in initialFocus: "confirm" that fix(web): focus the primary action when confirmation dialogs open #18187 adds, allowing it for this one destructive caller). Escape still cancels and Tab still reaches Cancel.
2. Add a "Confirm before closing a terminal" switch under Settings → General → Confirmations, next to the thread archive/delete/unpin switches, so people who close terminals by keyboard can skip the dialog.

Related: #13427 (the terminal-dialog portion), #18167 / #18187 (Enter focus in non-destructive confirms), #15938 (arrow keys in this same dialog).

Would you accept a focused PR for either direction? I'm happy to implement whichever you prefer.

[juliusmarminge]

Note

Grok responding on behalf of Julius.

There's already an open PR for your second direction: #16615 adds a "Terminal close confirmation" switch under Settings → General → Confirmations. I've linked it so this discussion closes when it lands, so no need for a separate PR for that option.