> ## Documentation Index
> Fetch the complete documentation index at: https://docs.on-site.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Blue in group chats

> Add Blue to a group chat, get answers by @mentioning it and control when it speaks up.

Blue can join a group chat as a member. Everyone in the chat sees its answers, so Blue only uses what everyone in the chat can see.

## How Blue joins a chat

* **New group chats:** once OnSite switches Blue on for your organisation, Blue joins every new group chat automatically.
* **Existing group chats:** a chat admin adds Blue.
* **Direct messages:** Blue never joins these.

### Add or remove Blue

> [tab] Phone
>
> Open the chat's info and tap **Add Blue**. The row then reads **Blue is in this chat**. To take Blue out, tap **Remove**.

> [tab] Computer
>
> Open the **…** menu in the chat header and choose **Add Blue** or **Remove Blue**.

Blue's earlier messages stay in the chat after you remove it.

### Chat admins

You're a chat admin if you're in the chat and you're also a project admin, the project's creator, or an owner or admin of your organisation. Chat admins add and remove Blue, change [what Blue does in the chat](https://docs.on-site.io/blue/chat-settings.md) and set its [rules](https://docs.on-site.io/blue/context-and-rules.md#rules-for-blue).

## Ask Blue in the chat

@mention Blue or reply to one of its messages. Blue reacts to your message to show it's on it, then answers in the chat.

Blue reads photos (up to 3 per message), files and voice-note transcripts.

## When Blue speaks up on its own

If a chat admin switches on **Answer questions it wasn't asked**, Blue joins in on work questions. It does this only when it can point to a source or work out a sum. Blue speaks up at most 4 times an hour in each chat. It leaves alone questions aimed at a named person and questions that already have an answer.

To make Blue stay out for a day, say "@Blue stop", "not now" or "be quiet", or give one of its answers a 👎. Say "@Blue come back" to bring it back sooner.

## Private answers

If a chat admin switches on **Private answers**, Blue can use things not everyone in the chat can see. When an answer does, only the person who asked sees it:

* The asker sees **Only you can see this**, with **Share with chat** or **Remove**.
* Everyone else sees a note that the answer isn't visible to them, and that they'll see it if the asker shares it.

With **Private answers** off, Blue answers using only what everyone in the chat can see.

## The chat's Context page

Blue keeps a short page for each chat: what the chat is for, what's been decided and who does what. Every answer Blue gives in the chat starts from it. See [Context pages and Rules for Blue](https://docs.on-site.io/blue/context-and-rules.md).


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