pi-terminal-notifier

macOS native notifications for pi — focus-aware, click-to-activate, with a namespaced event bus.

Why

When pi finishes a long turn or needs input, you are often in another app. pi-terminal-notifier posts a native macOS banner with a short sound, skips noise while you are already looking at the terminal, and brings you back on click.

Install

pi install npm:pi-terminal-notifier

How it works

Source	Behavior
agent_end	✅ Task Complete / ❌ Task Failed from the last assistant text; suppressed when the pi terminal is frontmost
Event bus	Other extensions emit pi-terminal-notifier:notify for approvals, plan ready, etc.

Foreground suppression is skipped when force: true (use when the user must act).

Click-to-activate focuses Ghostty, VS Code, Terminal, or iTerm2. Inside tmux, it also selects the originating window and pane.

Events

// Approval required
pi.events.emit("pi-terminal-notifier:notify", {
  title: "✏️ Approval Needed",
  body: "$ npm run deploy",
  sound: "question",
  force: true,
  group: "approval",
});

// Plan ready
pi.events.emit("pi-terminal-notifier:notify", {
  title: "📋 Plan Ready",
  body: "Review the implementation plan.",
  sound: "plan-ready",
  force: true,
  group: "plan-ready",
});

Tool Call Integration

Notify when ask_user_question is waiting for user input:

pi.on("tool_call", async (event) => {
  if (event.toolName !== "ask_user_question") return undefined;

  const input = event.input as {
    questions?: Array<{
      header?: string;
      question?: string;
    }>;
  };
  const first = input.questions?.[0];

  pi.events.emit("pi-terminal-notifier:notify", {
    title: "✋ Input Needed",
    body: [first?.header, first?.question]
      .filter(Boolean)
      .join("\n"),
    sound: "question",
  });

  return undefined;
});

Field	Description
title	Notification title
body	Message body
subtitle	Optional; defaults to the current directory basename
sound	Sound key (filename without extension)
force	Skip frontmost-terminal suppression
group	terminal-notifier group id (replace previous in same group)

Sounds

Key	File
task-complete	sounds/task-complete.aiff
review-complete	sounds/review-complete.aiff
question	sounds/question.aiff
plan-ready	sounds/plan-ready.aiff
error	sounds/error.aiff

Played via afplay. Source MP3s and full attribution: NOTICE.

Compatibility

Environment	Notifications	Foreground suppression	Click to activate
Ghostty	Supported	Supported	Supported
VS Code terminal	Supported	Workspace-aware	Supported
Apple Terminal	Supported	Supported	Supported
iTerm2	Supported	Supported	Supported
tmux	Supported	Active pane/window-aware	Returns to the originating pane
Other terminals	Supported	Not detected	Not available

VS Code foreground detection checks the front window's workspace against the current working directory. In tmux, suppression checks whether the originating pane and window are active; clicking a notification selects that window and pane before focusing the terminal.

Tested

• Apple Silicon, macOS 15
• Ghostty running tmux
• Native notification delivery and sound playback

Ghostty + tmux is the environment tested by the author. VS Code, Apple Terminal, and iTerm2 integrations are implemented from their process and bundle identifiers but have not yet been independently verified.

macOS Setup

After the first notification is sent:

1. Open System Settings → Notifications → pi-terminal-notifier.
2. Turn on Allow Notifications.
3. Enable Sounds and choose Banners or Alerts as the notification style.
4. If notifications are still hidden, check that Focus or Do Not Disturb is not suppressing them.

Requirements / Notes

• macOS only
• Bundled notifier is Apple Silicon (arm64) only, ad-hoc signed, not notarized
• Browser/GitHub downloads may be Gatekeeper-quarantined; a local clone usually works as-is
• Child processes (pi -p, --no-session) and subagent sessions do not register user-facing notifications

License

GPL-3.0-or-later — see LICENSE.

Third-party components, including the notifier binary and sound assets, are documented in NOTICE.