[Bug][TUI/Windows] Pasting image via Ctrl+V permanently changes terminal title to "Windows PowerShell 5.1"

[sevelee]

Description

Description

When pasting an image from clipboard using Ctrl+V in OpenCode TUI on Windows, the terminal tab title permanently changes from the OpenCode session title (e.g. OC | <session name>) to "Windows PowerShell 5.1" and never recovers.

Root Cause

In packages/tui/src/clipboard.ts, the read() function spawns powershell.exe (Windows PowerShell 5.1) to read clipboard image data:

const image = await command("powershell.exe", ["-NonInteractive", "-NoProfile", "-command", script])

PowerShell 5.1 calls SetConsoleTitle() on startup, which overwrites the terminal title. Since the child process shares the console with the parent, the title change is visible immediately. OpenCode does not restore the title after the command completes.

Expected Behavior

Terminal title should remain unchanged (or be restored) after pasting an image.

Suggested Fix

Option A: Restore the terminal title after spawning powershell.exe using ANSI escape:

process.stdout.write(`\x1b]2;${currentTitle}\x07`)

Option B: Use pwsh.exe (PowerShell 7) when available — it does not change the console title on startup.

Steps to Reproduce

1. Open OpenCode TUI in Windows Terminal (note the tab title shows OC | <session>)
2. Copy any image to clipboard (e.g. screenshot via Win+Shift+S)
3. Press Ctrl+V in the OpenCode prompt
4. Observe: terminal tab title permanently changes to "Windows PowerShell 5.1"

Environment

• OpenCode: 1.17.9
• OS: Windows 11
• Terminal: Windows Terminal
• Shell: PowerShell 7 (pwsh)

Screenshot

Plugins

No response

OpenCode version

1.17.9

Steps to reproduce

When pasting an image from clipboard using Ctrl+V in OpenCode TUI on Windows, the terminal tab title permanently changes from the OpenCode session title (e.g. OC | ) to "Windows PowerShell 5.1" and never recovers.

Screenshot and/or share link

No response

Operating System

Windows 11

Terminal

Windows Terminal

[github-actions]

This issue might be a duplicate of existing issues. Please check:

• Windows Terminal tab title resets to 'Windows PowerShell' after Ctrl+C copy (v1.17.x regression) #32293: Same symptom — Windows Terminal tab title resets to "Windows PowerShell" after a TUI action (Ctrl+C copy). Same root cause: a child process inheriting the console and calling SetConsoleTitle. The trigger differs (copy vs. image paste), but the underlying fix is likely shared.
• Windows Terminal tab title shows C:\WINDOWS\system32\cmd.exe when any npx-based MCP server is running #31120: Tab title overwritten by a spawned child process (npx/cmd.exe) sharing the console — same class of problem on Windows Terminal.

If your issue is distinct from those, feel free to keep it open and reference them for context.