@pi-lab/notify

Desktop notification extension for pi coding agent.

Install

pi install npm:@pi-lab/notify

Behavior

This extension sends a desktop notification for two events:

• agent_end — title Pi, message Ready for input
• permissions:ask — title Pi, message Permission required: <toolName>

permissions:ask is emitted by @pi-lab/permissions immediately before a permission prompt is shown.

Notification backend

The built-in notification backend is auto-detected:

• Windows Terminal / WSL: PowerShell toast
• Kitty: OSC 99
• Other terminals: OSC 777

Click handling is not implemented by the built-in backend. Use the script hook for terminal- or OS-specific click behavior.

Configuration

Configuration files:

• Global: ~/.pi/agent/pi-lab/notify.json
• Local: <cwd>/.pi/pi-lab/notify.json

Local config overrides global config.

Disable built-in notifications

{
  "notify": {
    "enable": false
  }
}

enable defaults to true and only controls built-in desktop notifications. Script hooks still run when enable is false.

Script hook

{
  "notify": {
    "script": "~/.pi/agent/pi-lab/notify.sh"
  }
}

When configured, the script is executed for every notify event in addition to the built-in notification. The script receives a JSON payload on stdin and has a fixed 5 second timeout. Failures are warned in Pi and do not affect agent execution or permission prompts.

Example payload for agent_end:

{
  "event": "agent_end",
  "notificationId": "pi-agent-end-1778220000000",
  "title": "Pi",
  "message": "Ready for input",
  "timestamp": 1778220000000,
  "cwd": "/home/user/project",
  "pid": 12345,
  "terminal": {
    "term": "xterm-kitty",
    "termProgram": "kitty",
    "kittyWindowId": "1"
  }
}

Example payload for permissions:ask:

{
  "event": "permission_ask",
  "notificationId": "pi-permission-ask-1778220000000",
  "title": "Pi",
  "message": "Permission required: bash",
  "timestamp": 1778220000000,
  "cwd": "/home/user/project",
  "pid": 12345,
  "terminal": {
    "term": "xterm-kitty",
    "termProgram": "kitty",
    "kittyWindowId": "1"
  }
}

Unavailable terminal fields are omitted from the JSON sent to the script.

The script payload intentionally does not include raw tool input, permission rules, options, or tool call identifiers.

Example script:

#!/usr/bin/env bash
set -euo pipefail
payload="$(cat)"
message="$(jq -r .message <<<"$payload")"
notify-send "Pi" "$message"