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How to know when Claude Code is done on a Mac

You give Claude Code a task, switch to something else, and then keep alt-tabbing back to check on it. Here's how to make your Mac tell you instead.

By Otabek Abdiraimov, who makes Halo. Updated 8 October 2026.

The two moments that matter

A long Claude Code task has two moments when you need to look:

• It needs you. It wants permission to run a command or edit a file, and it sits there until you answer. Miss this and the task stalls for nothing.
• It's done. It finished its turn and is waiting for your next prompt.

Claude Code has a hook for each: Notification fires when it needs your permission or is waiting for input, and Stop fires when it finishes responding. Every option below is built on these two hooks.

Option 1: Claude Code's built-in alert

When Claude Code finishes or pauses for permission while you seem to be away from the terminal, it sends a notification on its own. In Ghostty and Kitty that becomes a macOS notification with no setup. In iTerm2, turn it on under Settings › Profiles › Terminal: check “Notification Center Alerts”, then click “Filter Alerts” and enable “Send escape sequence-generated alerts”.

In other terminals, such as Apple Terminal, Warp or the VS Code terminal, add this to ~/.claude/settings.json to ring the terminal bell instead:

{
  "preferredNotifChannel": "terminal_bell"
}

Free and quick, but a bell is easy to miss if your sound is off, and a banner doesn't say which project it's about.

Option 2: your own hook (free)

Add hooks to ~/.claude/settings.json that play a sound when Claude Code finishes and show a notification when it needs you:

{
  "hooks": {
    "Stop": [
      { "hooks": [{ "type": "command", "command": "afplay /System/Library/Sounds/Glass.aiff" }] }
    ],
    "Notification": [
      { "hooks": [{ "type": "command", "command": "osascript -e 'display notification \"Claude Code needs you\" with title \"Claude Code\"'" }] }
    ]
  }
}

If the file already has a "hooks" section, merge these two events into it. Claude Code picks up the change on its own; run /hooks to check that both are there.

Limits: the notification doesn't say which project needs you when you run several sessions, banners land in the corner of the screen, and nothing tells you how long a task has been running.

Option 3: see it in the notch with Halo

I built this into Halo because I kept alt-tabbing to my terminal myself. Halo uses the same hooks, but shows the result where you're already looking: the top of the screen.

• Working: the notch shows the project and what Claude Code is doing, like Editing IslandView.swift, with a running timer.
• Needs you: a raised hand appears in the notch and a soft “Ping” plays.
• Done: the notch shows Done · 4m 12s for a moment and plays “Glass”. Errors play a different sound.
• Buddy, a small face beside the notch, mirrors it: thinking while an agent works, looking right at you when it needs you, happy when it's done.
• Several sessions are listed by project in the Agents tab, the most urgent first. Codex sessions show up too, with no setup.

Setting it up

1. Install Halo and open its Settings.
2. In Island Tabs, turn on Agents and usage limits and click Connect next to Claude Code.
3. Make sure Agent status is on. Turn off Sound when an agent needs you or finishes if you only want the visual.
4. Start a new Claude Code session. It appears in the notch on its first event.

Connecting backs up ~/.claude/settings.json first and adds Halo's hooks next to yours. Disconnecting removes only Halo's hooks. The hooks write short status events to a file on your Mac; nothing is sent anywhere.

Which one to pick

• One session now and then: the built-in alert is enough.
• You like tinkering: write your own hook. It's free and you control every detail.
• Several sessions, or you run Claude Code all day: Halo, so you see which project needs you without leaving what you're doing.

Questions

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