Control when Claude Tag responds changedclaude-tag/users/when-claude-responds
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Upstream edited this page at 2 Oct 2026 19:35 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 2 Oct 2026 19:37 UTC.
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9Claude replies without an @-mention in DMs, in any thread it's already part of, and to channel messages it judges warrant a reply. In a channel, Claude reads the messages and replies to some of them on its own, so an @-mention is how you guarantee a reply, not a requirement for one. This page covers how Claude decides whether to reply to a message nobody tagged it in, how to turn those replies off for a thread or a whole channel, and which messages never get a reply. Work Claude does on a schedule rather than in reply to a message is a [routine](/docs/claude-tag/users/proactivity), which has its own controls.
9Claude replies without an @-mention in one-to-one DMs, in any thread it's already part of, and to channel and group DM messages it judges warrant a reply. In a channel, Claude reads the messages and replies to some of them on its own, so an @-mention is how you guarantee a reply, not a requirement for one. This page covers how Claude decides whether to reply to a message nobody tagged it in, how to turn those replies off for a thread or a whole channel, and which messages never get a reply. Work Claude does on a schedule rather than in reply to a message is a [routine](/docs/claude-tag/users/proactivity), which has its own controls.
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1111## What triggers a response
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1515| Where you write | Replies without an @-mention? |
1616| :- | :- |
17| A DM with Claude | Always. Every message is addressed to Claude already |
17| A one-to-one DM with Claude | Always. Every message is addressed to Claude already |
1818| 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 |
1919| 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) |
20| A group DM that includes Claude, top-level | Sometimes. See [When Claude replies in a group DM](/docs/claude-tag/users/group-dms#when-claude-replies-in-a-group-dm) |
2021| A message another app or bot posted | No. Claude reads it as context. To get a reply, have the app include `@Claude` in its message. [Messages from other apps and bots](#messages-from-other-apps-and-bots) covers when that mention goes unanswered |
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2223When 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.
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