TUI "Copy to clipboard" reports success but does not update Windows clipboard under WSL

[Jackson98Tomphson]

Description

When running OpenCode inside WSL, selecting text in the TUI and choosing "Copy to clipboard" shows the success notification, but nothing is actually copied to the Windows clipboard.

I verified that the issue is not related to OSC52 support, Windows Terminal, WSL clipboard integration, or tmux.

Plugins

{ "plugin": [ "opencode-vibeguard", "opencode-notify" ] }

OpenCode version

1.18.8

Steps to reproduce

Environment

Windows Terminal
└── WSL (Ubuntu)
    └── zsh
        └── OpenCode

Reproduction

1. Start OpenCode from a WSL shell.
2. Open any chat session.
3. Highlight part of a message.
4. Select Copy to clipboard from the popup menu.
5. Open a Windows application (Notepad, VS Code, etc.).
6. Press Ctrl+V.

Expected behavior

The selected text should be copied to the Windows clipboard and pasted successfully.

Actual behavior

OpenCode displays a "Copy to clipboard" success notification,
but the Windows clipboard is not updated and nothing can be pasted.

Debugging performed

The issue occurs both:

• inside tmux
• outside tmux

Outside tmux:

echo $TERM
xterm-256color

echo $TMUX

Output:

(empty)

I also verified that OSC52 clipboard integration works correctly from the same WSL environment:

printf '\033]52;c;%s\a' "$(printf 'OSC52_TEST' | base64 -w0)"

After running the command above, I can successfully paste:

OSC52_TEST

into Windows applications.

This suggests that:

• Windows clipboard integration is working
• Windows Terminal supports OSC52
• WSL clipboard access is working
• the problem is not caused by tmux
• the issue appears to be specific to OpenCode's clipboard handling

Screenshot and/or share link

No response

Operating System

Windows 11 WSL Ubuntu

Terminal

Windows Terminal

[github-actions]

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

• Copy To Clipboard is not working #4283: Copy To Clipboard shows success notification but clipboard is not updated (same core symptom)
• Copy shows copied popup but clipboard remains unchanged on Linux terminal #24713: Copy shows copied popup but clipboard remains unchanged on Linux terminal
• Clipboard copy in WSL #5879: Clipboard copy in WSL (closed, WSL-specific)
• [WSL][tmux] opencode cannot copy text in WSL tmux #10128: [WSL][tmux] opencode cannot copy text in WSL tmux (closed, WSL-specific)

If any of these cover your case, consider adding a comment there instead.

[Jackson98Tomphson]

Closing this issue as a duplicate/local tracker of anomalyco/opentui#1271.

Note: this should not be considered resolved until PR anomalyco/opentui#1271 is merged and released in opencode. If the bug persists after release, I will reopen this issue with updated details.