btw-opencode

A plugin for OpenCode — inspired by Claude Code's /btw command — that lets you fork a session and run prompts in the background.

Demo: https://x.com/ig_idcbtw/status/2036773739363434930?s=20

Similar to Claude Code's /btw, this lets you ask questions or run side tasks without interrupting your main conversation thread. The forked session runs independently, keeping your main session context lean and saving tokens.

Features

• Fork sessions for background tasks
• Automatic recovery if the forked session is deleted
• Titles inherited from parent session with #BTW prefix
• Notifications when background tasks complete

Installation

Option 1: From npm (recommended)

Add to your opencode.json:

{
  "$schema": "https://opencode.ai/config.json",
  "plugin": ["btw-opencode"]
}

Then restart OpenCode. The plugin will be installed automatically via Bun.

Option 2: Local plugin

Clone this repo and place the built dist/btw-opencode.js in your plugins directory:

• Project-level: .opencode/plugins/
• Global: ~/.config/opencode/plugins/

Build the plugin:

bun install
bun run build

Then copy dist/btw-opencode.js to your plugins directory.

Usage

Use the /btw command to ask a side question or add context without interrupting your main conversation:

/btw <your question or note>

Examples:

/btw what version of Node.js does this project use?
/btw I'm targeting Python 3.10 for compatibility
/btw can you explain what this regex does?

The forked session will:

• Inherit the parent session's title with a #BTW prefix
• Run independently in the background
• Notify you when it completes

If the forked session is deleted, the plugin will automatically create a new one and retry.

License

MIT