V2 Notification

Native OS notifications for OpenCode V2

A CLI plugin for OpenCode V2 that delivers native OS notifications when tasks complete, errors occur, or the AI needs your input.

Why This Exists

You delegate a task and switch to another window. Now you're checking back every 30 seconds. Did it finish? Did it error? Is it waiting for permission?

This plugin solves that:

• Stay focused - Work in other apps. A notification arrives when the AI needs you.
• Uses OpenCode's built-in attention API - Native notifications on all platforms
• Smart defaults - Won't spam you. Only notifies for meaningful events with parent-session filtering and quiet-hours support.
• Lightweight - Event-driven, no tools added to your conversation

Installation

opencode plugin add @serkanalgur/opencodev2-notification

Via opencode.json

Add to your opencode.json or opencode.jsonc:

{
  "plugins": ["@serkanalgur/opencodev2-notification"]
}

As a local plugin

Or copy the plugin files to your .opencode/plugins/ directory:

.opencode/plugins/notification/index.ts

⚠️ Required: enable attention (mandatory)

This plugin will NOT work unless you turn on OpenCode's attention setting first. The plugin only uses OpenCode's built-in notification API — it cannot enable it for you. If attention is off, every notification is silently dropped (attention_disabled) and nothing appears on screen or plays a sound.

Add this block to ~/.config/opencode/cli.json:

{
  "attention": {
    "notifications": true,
    "sound": true,
    "volume": 0.4
  }
}

• attention.notifications → shows system notifications (usually when the terminal is not focused).
• attention.sound → plays a sound always (even while the terminal is focused).

On macOS, also allow notifications for your terminal app: System Settings → Notifications → (Terminal/iTerm) → Allow Notifications.

If attention is disabled, v1.2.6+ prints a clear warning in the terminal when an event fires:

opencodev2-notification: attention is disabled. Enable it in ~/.config/opencode/cli.json:
  "attention": { "notifications": true, "sound": true }

How It Works

"Notify the human when the AI needs them back, not for every micro-event."

Event	Notifies?	Sound	Why
Session complete	Yes	done	Main task done - time to review
Session error	Yes	error	Something broke - needs attention
Permission needed	Yes	permission	AI is blocked, waiting for you
Sub-task complete/error	No (default)	-	Set notifyChildSessions: true to include child sessions

The plugin automatically:

1. Uses OpenCode's built-in attention.notify() API for native notifications
2. Only notifies when terminal is not focused (no spam while you're working)
3. Deduplicates rapid-fire notifications

Platform Support

Platform	Method	Status
macOS	Notification Center	✅ Full support
Windows	Toast notifications	✅ Full support
Linux	Desktop notifications	✅ Full support

Plugin Configuration (Optional)

The plugin ships with sensible defaults and works right after you've completed the required attention setup above.

To customize the plugin itself, create ~/.config/opencode/opencodev2-notification.json:

{
  "notifyChildSessions": false,
  "sounds": {
    "idle": "done",
    "error": "error",
    "permission": "permission"
  },
  "quietHours": {
    "enabled": false,
    "start": "22:00",
    "end": "08:00"
  }
}

Configuration Keys

Key	Type	Default	Description
notifyChildSessions	boolean	false	Include child/sub-session notifications
sounds.idle	string	"done"	Sound for session complete
sounds.error	string	"error"	Sound for errors
sounds.permission	string	"permission"	Sound for permission requests
quietHours.enabled	boolean	false	Enable quiet hours
quietHours.start	string	"22:00"	Quiet hours start (HH:MM)
quietHours.end	string	"08:00"	Quiet hours end (HH:MM)

Available Sound Names

default, question, permission, error, done, subagent_done

FAQ

Does this add bloat to my context?

Minimal footprint. The plugin is event-driven - it listens for session events and fires notifications. No tools are added to your conversation.

Will I get spammed with notifications?

No. Smart defaults prevent noise:

• Only notifies for parent sessions (not every sub-task)
• Supports quiet-hours suppression
• Only notifies when terminal is not focused
• Deduplication prevents rapid-fire notifications

Can I disable it temporarily?

Remove the plugin from your opencode.json or delete the plugin files.

Credits

Inspired by opencode-notify by kdcokenny.

License

MIT