TUI shows "Copied to clipboard" toast even when the clipboard write fails

[aishangwuji]

Description

In the TUI, selecting text (copy-on-select) or copying a message shows a "Copied to clipboard" toast even when nothing was actually copied — the system clipboard stays empty when pasting elsewhere.

Root cause: packages/tui/src/clipboard.ts swallows every copy error with .catch(() => undefined) in both the native command and clipboardy fallback paths, so write() always resolves and every caller shows a success toast.

Plugins

none

OpenCode version

dev

Steps to reproduce

1. Run opencode TUI on Linux (e.g. Ubuntu, GNOME/Wayland) where wl-clipboard/xclip/xsel is not installed
2. Drag-select some text (copy-on-select is enabled by default on Linux) or copy a message
3. The "Copied to clipboard" toast appears
4. Paste into another app — the clipboard is empty

Operating System

Ubuntu (GNOME/Wayland)

Terminal

GNOME Terminal

[github-actions]

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

• “Copied to clipboard” doesn't work #41470: "Copied to clipboard" doesn't work — same symptom (toast shows success but clipboard remains empty) on Linux
• Copy shows copied popup but clipboard remains unchanged on Linux terminal #24713: Copy shows copied popup but clipboard remains unchanged on Linux terminal — same root behavior, also notes the need for proper error surfacing
• Clipboard copy not working on Ubuntu 24.04 (GNOME Terminal) #29834: Clipboard copy not working on Ubuntu 24.04 (GNOME Terminal) — identical environment (Ubuntu, GNOME Terminal) and symptom
• Copy Text "Copied to clipboard" does never work #7048: Copy Text "Copied to clipboard" does never work — same issue on Ubuntu with various terminals

Your report does add useful value by identifying the specific root cause in packages/tui/src/clipboard.ts (the .catch(() => undefined) swallowing errors). If you believe your issue is distinct or provides new actionable detail beyond those linked above, please let a maintainer know.

[aishangwuji]

This issue is a duplicate of #41470 ("Copied to clipboard" toast shows success but the clipboard remains empty). The root cause in packages/tui/src/clipboard.ts (errors swallowed by .catch(() => undefined)) is addressed by PR #41924.