macOS composer stops accepting typing until clicked again

[praneeth-red]

While typing in T3 Code, characters suddenly stop appearing and the text cursor stops blinking. Clicking the composer restores typing.

Expected: Typing continues without needing to click the composer again.

Version: 0.0.45-nightly.20260930.2493

OS: macOS 27.0, build 26A428

The interruption is intermittent. The trigger hasn't been isolated, and browser automation hasn't been confirmed as the cause.

Similar symptoms were reported in #5792, which is now closed.

[MGRAFF2006]

Additional report on Arch Linux, so these symptoms are not limited to macOS.

While typing a message in T3 Code Desktop, focus frequently leaves the message input and interrupts typing. The precise trigger and focus destination have not been isolated; correlation with browser automation or incoming questions is not yet confirmed.

Expected: the composer keeps focus while typing unless I deliberately move focus.

Environment verified locally:

• T3 Code Desktop 0.0.44, installed as Arch/AUR package t3code-bin 0.0.44-1.
• Running with Electron's Wayland backend.
• Codex provider.

Relevant known cause: #15008 confirms that agent preview_click calls can steal composer focus even from hidden previews or previews belonging to another thread. That fix merged on 2026-10-03 as 798e945aa77939937464ff45deaa8947be8d402f. GitHub's compare endpoint confirms it is 32 commits after the v0.0.45 tag, so neither this installed build nor the current stable 0.0.45 contains it.

This is an additional user report, not an independently reproduced regression after #15008. No claim is being made that the merged fix fails. Posting here because #15262 was redirected to this issue for the same unknown-trigger typing interruption. If the symptoms persist on a build containing #15008, that would need separate investigation.