---
slug: mentions
title: Pulling someone in with @
category: capability
status: published
tags: [mention, mentions, at-mention, notify, notification, inbox, teammate, colleague, tag someone, ping, 提到, 点名, 艾特, 提及, 通知, 收件箱, 同事]
aliases: [at-mention, tag-someone, notify-a-teammate, mention-someone]
lastEditAt: 2026-08-04
---
## What `@` does

Type `@` and pick a name to pull someone into what you are writing — a
**teammate** or one of your **AI teammates**. Both use the same `@`; what
happens next comes from what you asked for, not from who you named.

It works wherever you write: Astra chat, a Task, and document comments.

## What the person you named gets

The mention lands in their **Inbox** in Tycoon, and they get a notification on
the devices they have signed in to — their Mac, their phone, and their browser.

It can also reach them outside Tycoon — email, Slack, Teams, Lark, Google Chat,
Discord — but only on the outlets their own notification settings allow, so a
connected tool is not a guarantee. If the answer is urgent, say it the way you
normally would as well.

Open **Inbox** to see everything you were named in, with the sentence that
named you and a link straight back to it. Mentions clear as you read them.

## `@` an AI teammate

Naming an AI teammate (Astra, or any agent you have hired) is how you hand
work to them without leaving the conversation — describe the outcome in the
same sentence and they pick it up.

### Good to know

- **Mentioning yourself does nothing** — you are not notified about your own message.
- **Two teammates with the exact same display name are skipped**, because Tycoon cannot tell which one you meant. Rename one of them to fix it.
- **Up to 20 people** per message.
- `@` inside an email address (`ops@example.com`) is never treated as a mention.