Control when Claude Tag responds changedclaude-tag/users/when-claude-responds
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Upstream edited this page at 26 Sep 2026 05:31 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 28 Sep 2026 22:07 UTC.
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1313Whether Claude replies to a message without an @-mention depends on where you send it.
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15| Where you write | Replies without an @-mention? |
16| :---------------------------------- | :---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
17| A DM with Claude | Always. Every message is addressed to Claude already |
18| A thread Claude is already in | Yes, unless you've [quieted the thread](#quiet-one-conversation). Once Claude has joined, every reply there reaches it without another mention |
19| A channel, top-level | Sometimes. [What Claude does with a channel message](#what-claude-does-with-a-channel-message) describes how it decides. Include `@Claude` to guarantee a reply, or [turn unprompted replies off](#quiet-the-whole-channel) |
15| Where you write | Replies without an @-mention? |
16| :- | :- |
17| A DM with Claude | Always. Every message is addressed to Claude already |
18| A thread Claude is already in | Yes, unless you've [quieted the thread](#quiet-one-conversation). Once Claude has joined, every reply there reaches it without another mention |
19| A channel, top-level | Sometimes. [What Claude does with a channel message](#what-claude-does-with-a-channel-message) describes how it decides. Include `@Claude` to guarantee a reply, or [turn unprompted replies off](#quiet-the-whole-channel) |
2020| A message another app or bot posted | No guaranteed reply. Claude reads it as context. `@Claude` in a bot's message doesn't wake a quiet channel; in an active channel Claude may pick it up. See [Messages from other apps and bots](#messages-from-other-apps-and-bots) |
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2222When you @-mention Claude in a channel, it reacts to your message with an emoji within a few seconds to show that it picked the message up. The message goes to the channel's own [session](/docs/claude-tag/concepts/glossary#session), the session Claude works from at the channel's top level. It then answers in a thread under your message, or starts a [working session](/docs/claude-tag/concepts/how-it-works) in that thread when the request needs investigation, tools, or a longer exchange. Once a working session starts, Claude shows an "is thinking…" line under your message. A reaction with no line under it means Claude picked your message up and is either still deciding or answering directly in the thread, not that it missed you.
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4545All three places below change the same setting, so a change you make in one appears in the others.
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47| Where | How |
48| :-------------------------------------- | :--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
49| In Slack | Ask Claude in the channel, for example "@Claude only respond in this channel when someone @-mentions you" or "@Claude respond to messages here even when nobody mentions you." Claude confirms the change. |
50| The channel's Configure page | Open the **Configure** link in the footer of any Claude reply in the channel and switch the **Respond automatically** toggle. See [Configure Claude for a channel](/docs/claude-tag/users/good-habits#configure-claude-for-a-channel). |
47| Where | How |
48| :- | :- |
49| In Slack | Ask Claude in the channel, for example "@Claude only respond in this channel when someone @-mentions you" or "@Claude respond to messages here even when nobody mentions you." Claude confirms the change. |
50| The channel's Configure page | Open the **Configure** link in the footer of any Claude reply in the channel and switch the **Respond automatically** toggle. See [Configure Claude for a channel](/docs/claude-tag/users/good-habits#configure-claude-for-a-channel). |
5151| The Claude Tag admin page (admins only) | At [`claude.ai/admin-settings/claude-tag`](https://claude.ai/admin-settings/claude-tag), on the **Slack** tab under **Claude Tag's access**, open the channel's scope and switch **Respond automatically** in its **Advanced** settings. |
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5353When the scope's [**Channel member edits**](/docs/claude-tag/admins/attach-to-scope#restrict-who-can-set-channel-instructions) setting is **Block**, Claude declines to change **Respond automatically** when anyone asks in Slack, and channel members can't switch the toggle on the channel's Configure page. An admin can still change the setting on the Claude Tag admin page, and a [channel manager](/docs/claude-tag/admins/restrict-access#delegate-channel-setup-to-channel-managers) can still switch the toggle on the Configure page of a channel assigned to them.
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