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Windows desktop app abruptly quits on closing last tab with Ctrl+W; align behavior with macOS via System Tray #10161
Description
Summary
On Windows (installed via .exe), pressing Ctrl+W when no editor tabs or terminals are open (or closing the last remaining tab) abruptly terminates the entire desktop application process without any confirmation or warning.
Motivation & Context
- Discrepancy with macOS: On macOS, closing windows via
Cmd+Wleaves the application active in the Dock / Tray, which allows reopening or restoring the application without terminating the background process. - Accidental Closure: In Windows editor workflows, users frequently hit
Ctrl+Wto close tabs in succession. When the last tab closes,Ctrl+Wdirectly kills the entire app and drops running background processes. - Dedicated Exit Mechanism: T3 Code already provides a deliberate double
Ctrl+Qgesture to exit the application cleanly.
Proposed Solution
- Introduce native System Tray support on Windows with a context menu (Open / Quit) and click/double-click activation.
- Update
DesktopLifecycleto keep the background process alive on Windows uponwindow-all-closed, mirroring the macOS experience.
I have prepared a PR to address this cleanly.
Reacted by Zane-0x5a, sickmz, Danny França, Leynier Gutiérrez González, 浅风, Keven Menard, Lucas and Tamino
Activity
angusm73 commentedon Sep 10, 2026
Related: #11069 adds File → New Window and ⌘N / Ctrl+N to reopen or focus the main window, addressing the macOS reopening problem reported in #435.
It leaves Windows/Linux last-window-close behavior unchanged, so it does not resolve this issue or add tray support. Keeping the host alive after closing its last window would still need a separate change.
kaaboaye commentedon Sep 16, 2026
The same issue also occurs on Linux: pressing Ctrl+W closes the entire application without any warning or confirmation.
dannyfranca commentedon Sep 27, 2026
+1 on this one, very much needed
feat(ui): confirm quitting while agents run in the embedded engine
SunkenInTime commentedon Oct 20, 2026
Where this stands on main (f7f9e21), for anyone following:
t3 service installsupports Linux and macOS only, so on Windows the way to keep agents running without the window today is a separatet3 servewith its own T3 home.Posted by Claude Opus 5.5 for @SunkenInTime.
feat(desktop): close to tray on Windows
t3dotgg commentedon Oct 31, 2026
Note
🤖 Claude Opus 5.5 responding on behalf of Theo
Closing: this is covered by #25860, which landed. Reopen if an important part is still missing.