Notifier

OpenCode plugin that plays sounds and sends system notifications when permission is needed, generation completes, errors occur, or the question tool is invoked. Features intelligent focus detection to avoid spamming you when you're actively using OpenCode. Works on macOS, Linux, and Windows.

Quick Start

Add this to your opencode.json:

{
  "plugin": ["@xtccc/opencode-notifier@latest"]
}

Restart OpenCode. Done.

What it does

You'll get notified when:

• OpenCode needs permission to run something
• Your session finishes
• A subagent task completes
• An error happens
• The question tool pops up

Smart Focus Detection: When suppressWhenFocused is enabled (default), notifications are delayed. If you interact with OpenCode within the focus window, the notification is suppressed (you're already there!). If you don't respond, the notification is sent after the delay.

Setup by platform

macOS: Nothing to do, works out of the box. Shows the Script Editor icon.

Linux: Should work if you already have a notification system setup. If not install libnotify:

sudo apt install libnotify-bin  # Ubuntu/Debian
sudo dnf install libnotify       # Fedora  
sudo pacman -S libnotify         # Arch

For sounds, you need one of: paplay, aplay, mpv, or ffplay

Windows: Works out of the box. But heads up:

• Only .wav files work (not mp3)
• Use full paths like C:/Users/You/sounds/alert.wav not ~/

Config file

Create ~/.config/opencode/opencode-notifier.json with the defaults:

{
  "sound": true,
  "notification": true,
  "timeout": 5,
  "showProjectName": true,
  "showIcon": true,
  "notificationSystem": "osascript",
  "suppressWhenFocused": true,
  "focusWindowSeconds": 60,
  "debug": false,
  "command": {
    "enabled": false,
    "path": "/path/to/command",
    "args": ["--event", "{event}", "--message", "{message}"],
    "minDuration": 0
  },
  "events": {
    "permission": { "sound": true, "notification": true },
    "complete": { "sound": true, "notification": true },
    "subagent_complete": { "sound": false, "notification": false },
    "error": { "sound": true, "notification": true },
    "question": { "sound": true, "notification": true }
  },
  "messages": {
    "permission": "Session needs permission",
    "complete": "Session has finished",
    "subagent_complete": "Subagent task completed",
    "error": "Session encountered an error",
    "question": "Session has a question"
  },
  "sounds": {
    "permission": null,
    "complete": null,
    "subagent_complete": null,
    "error": null,
    "question": null
  }
}

All options

Global options

{
  "sound": true,
  "notification": true,
  "timeout": 5,
  "showProjectName": true,
  "showIcon": true,
  "notificationSystem": "osascript"
}

• sound - Turn sounds on/off (default: true)
• notification - Turn notifications on/off (default: true)
• timeout - How long notifications show in seconds, Linux only (default: 5)
• showProjectName - Show folder name in notification title (default: true)
• showIcon - Show OpenCode icon, Windows/Linux only (default: true)
• notificationSystem - macOS only: "osascript" or "node-notifier" (default: "osascript")
• suppressWhenFocused - Delay notifications; cancel if you interact with OpenCode within the window (default: true)
• focusWindowSeconds - How long to wait before sending notification when suppressWhenFocused is enabled (default: 60)
• debug - Enable debug logging to see plugin activity (default: false)

Suppress When Focused

When enabled (default), the plugin intelligently avoids spamming you:

1. When an event occurs (e.g., session completes), a timer starts
2. If you respond to OpenCode within focusWindowSeconds, the notification is canceled
3. If you don't respond, the notification is sent after the delay

This prevents notifications when you're already actively using OpenCode, but ensures you get notified when you step away.

{
  "suppressWhenFocused": true,
  "focusWindowSeconds": 60
}

Set to false to always receive notifications immediately.

Events

Control each event separately:

{
  "events": {
    "permission": { "sound": true, "notification": true },
    "complete": { "sound": true, "notification": true },
    "subagent_complete": { "sound": false, "notification": false },
    "error": { "sound": true, "notification": true },
    "question": { "sound": true, "notification": true }
  }
}

Or use true/false for both:

{
  "events": {
    "complete": false
  }
}

Messages

Customize the notification text:

{
  "messages": {
    "permission": "Session needs permission",
    "complete": "Session has finished",
    "subagent_complete": "Subagent task completed",
    "error": "Session encountered an error",
    "question": "Session has a question"
  }
}

Sounds

Use your own sound files:

{
  "sounds": {
    "permission": "/path/to/alert.wav",
    "complete": "/path/to/done.wav",
    "subagent_complete": "/path/to/subagent-done.wav",
    "error": "/path/to/error.wav",
    "question": "/path/to/question.wav"
  }
}

Platform notes:

• macOS/Linux: .wav or .mp3 files work
• Windows: Only .wav files work
• If file doesn't exist, falls back to bundled sound

Custom commands

Run your own script when something happens. Use {event} and {message} as placeholders:

{
  "command": {
    "enabled": true,
    "path": "/path/to/your/script",
    "args": ["{event}", "{message}"],
    "minDuration": 10
  }
}

• enabled - Turn command on/off
• path - Path to your script/executable
• args - Arguments to pass, can use {event} and {message} tokens
• minDuration - Skip if response was quick, avoids spam (seconds)

Example: Log events to a file

{
  "command": {
    "enabled": true,
    "path": "/bin/bash",
    "args": [
      "-c",
      "echo '[{event}] {message}' >> /tmp/opencode.log"
    ]
  }
}

macOS: Pick your notification style

osascript (default): Reliable but shows Script Editor icon

{ 
  "notificationSystem": "osascript" 
}

node-notifier: Shows OpenCode icon but might miss notifications sometimes

{ 
  "notificationSystem": "node-notifier" 
}

NOTE: If you go with node-notifier and start missing notifications, just switch back or remove the option from the config. Users have reported issues with using node-notifier for receiving only sounds and no notification popups.

Updating

If Opencode does not update the plugin or there is an issue with the cache version:

# Linux/macOS
rm -rf ~/.cache/opencode/node_modules/@xtccc/opencode-notifier

# Windows
Remove-Item -Recurse -Force "$env:USERPROFILE\.cache\opencode\node_modules\@xtccc\opencode-notifier"

Then restart OpenCode.

Troubleshooting

macOS: Not seeing notifications? Go to System Settings > Notifications > Script Editor, make sure it's set to Banners or Alerts.

macOS: node-notifier not showing notifications? Switch back to osascript. Some users report node-notifier works for sounds but not visual notifications on certain macOS versions.

Linux: No notifications? Install libnotify-bin:

sudo apt install libnotify-bin  # Debian/Ubuntu
sudo dnf install libnotify       # Fedora
sudo pacman -S libnotify         # Arch

Test with: notify-send "Test" "Hello"

Linux: No sounds? Install one of: paplay, aplay, mpv, or ffplay

Windows: Custom sounds not working?

• Must be .wav format (not .mp3)
• Use full Windows paths: C:/Users/YourName/sounds/alert.wav (not ~/)
• Make sure the file actually plays in Windows Media Player
• If using WSL, the path should be accessible from Windows

Windows WSL notifications not working? WSL doesn't have a native notification daemon. Use PowerShell commands instead:

{
  "notification": false,
  "sound": true,
  "command": {
    "enabled": true,
    "path": "powershell.exe",
    "args": [
      "-Command",
      "$wshell = New-Object -ComObject Wscript.Shell; $wshell.Popup('{message}', 5, 'OpenCode - {event}', 0+64)"
    ]
  }
}

Windows: OpenCode crashes when notifications appear? This is a known Bun issue on Windows. Disable native notifications and use PowerShell popups:

{
  "notification": false,
  "sound": true,
  "command": {
    "enabled": true,
    "path": "powershell.exe",
    "args": [
      "-Command",
      "$wshell = New-Object -ComObject Wscript.Shell; $wshell.Popup('{message}', 5, 'OpenCode - {event}', 0+64)"
    ]
  }
}

Plugin not loading?

• Check your opencode.json syntax
• Clear the cache (see Updating section)
• Restart OpenCode

Changelog

See CHANGELOG.md

License

MIT