Message Copy

OpenCode TUI plugin for fuzzy-searching the current session, previewing the highlighted message as Markdown, and copying one exact user or assistant message as plain text.

Features

• Fuzzy-searches the full text of every user and assistant message.
• Shows a responsive split-view picker with a Markdown preview of the highlighted message.
• Keeps the original message text separate from the rendered preview, so copied text is exact plain text.
• Shows newest messages first when the search is empty.
• Opens from <leader>Y, /copy-message, or the command palette.
• Supports macOS (pbcopy), Linux Wayland (wl-copy), Linux X11 (xclip / xsel), WSL (clip.exe), and OSC52-capable terminals.

Install

Current OpenCode

opencode plugin add opencode-message-copy

You can also configure the TUI plugin directly in ~/.config/opencode/tui.json:

{
  "$schema": "https://opencode.ai/tui.json",
  "plugin": ["opencode-message-copy"]
}

On older OpenCode builds that predate plugin add, the equivalent installer command is:

opencode plugin opencode-message-copy --global

Usage

By default:

• <leader>Y opens the picker. With OpenCode's default leader, this is normally Ctrl+X, then Shift+Y.
• /copy-message opens the same picker from the prompt.
• Copy message is available in the command palette.
• Typing fuzzy-filters the full message bodies.
• Arrow keys, Ctrl+P / Ctrl+N, Page Up / Page Down, Home, and End navigate the message list using OpenCode's native select bindings.
• Enter copies the selected message.
• Esc or Ctrl+C closes the picker.

Configure

A plugin entry may include options:

{
  "$schema": "https://opencode.ai/tui.json",
  "plugin": [
    [
      "opencode-message-copy",
      {
        "binding": "<leader>Y",
        "includeUser": true,
        "includeAssistant": true
      }
    ]
  ]
}

Option	Default	Meaning
binding	"<leader>Y"	Shortcut that opens the picker. Set to false to disable it.
includeUser	true	Include user messages.
includeAssistant	true	Include assistant messages.

The package also exposes these defaults through its ./tui export so OpenCode can write them during package installation.

Compatibility

• OpenCode >=1.18.34 <2
• macOS, Linux, and WSL clipboard paths are supported.
• The UI uses OpenCode's public TUI plugin APIs and OpenTUI components; it does not patch OpenCode internals.

Local development

npm ci
npm run typecheck
npm run build
npm pack --dry-run

To test the source checkout directly, point tui.json at src/tui.ts:

{
  "$schema": "https://opencode.ai/tui.json",
  "plugin": [
    "file:///absolute/path/to/opencode-message-copy/src/tui.ts"
  ]
}

The npm package ships compiled JavaScript and declaration files from dist/. prepack runs typechecking and the build automatically before npm pack or npm publish.

Publishing

npm login
npm pack --dry-run
npm publish

After publishing, verify the package with:

npm view opencode-message-copy version

How it works

The plugin reads the current session through api.state.session.messages(...) and api.state.part(...). Each message's full whitespace-normalized body is used as the native DialogSelect search title, while the original text is retained separately for copying.

The picker is rendered in the global app slot as a plugin-owned overlay. Moving through the native message list updates a Markdown preview pane, but pressing Enter copies the original unrendered text.

License

MIT