Claude Tag — the teammate you @mention.
In June 2026 Anthropic replaced its old "Claude in Slack" app with Claude Tag: a persistent @Claude that lives in a channel, remembers context, and can be handed work by anyone on the team. It's a real shift from "a chatbot I DM" to "a coworker the whole channel shares." Here's what it actually does, how it's different from what came before, and how to use it without it turning into noise.
01 The core idea: one Claude per channel
The old Slack app was basically you, privately, talking to Claude. Claude Tag is different in a way that matters: it's one shared Claude instance per channel, visible to and usable by everyone in it. You @mention @Claude, hand it a task, and go back to your own work while it runs. Anyone else in the channel can do the same, and they're all talking to the same teammate — not separate private copies.
Because it's one instance in a shared space, Claude can build context from the channel itself — remembering relevant information from the conversations it sits in, and planning tasks to do later. That's what turns it from a vending machine you query into something closer to a team member who already knows what you're working on.
02 What it can actually do
| Capability | What it means in practice |
|---|---|
| Delegation | @mention Claude with a task and keep working; it handles it async and replies in-thread |
| Shared context & memory | Remembers relevant info from the channels it's in, so you don't re-explain every time |
| Tool & data connections | Can connect to your tools, data, and codebases to actually do the work, not just chat |
| Proactive updates (optional) | If ambient behavior is on, it flags things it thinks you'll need and follows up on stalled threads |
That last one is the most double-edged, so it gets its own honest note.
03 How it's different from the old Slack app
| Old "Claude in Slack" | Claude Tag | |
|---|---|---|
| Shape | A bot you mostly DM, one-to-one | A shared teammate in the channel |
| Memory | Largely per-conversation | Builds context from the channels it's in |
| Working style | Answers when asked | Delegated tasks, async work, optional proactive follow-ups |
| Who it serves | You | Everyone in the channel |
If your org already used the old app, note the migration: Claude Tag replaces it, and administrators have 30 days to opt in. It's available in beta for Claude Enterprise and Team customers — so it's a workspace-admin decision, not something an individual flips on alone.
What's the single biggest change from the old Slack app to Claude Tag?
04 The honest read
Anthropic isn't shy that this is how they work now — they say tagging @Claude is one of the main ways the company gets things done, and that a large share of one product team's code is written by their internal version of it. Take the specific number with a grain of salt (it's a vendor's self-report), but the direction is real: chat-style AI is moving toward delegation — you hand off a task and check the result — rather than turn-by-turn Q&A.
The skill that matters is the same one good managers have: writing a clear hand-off. A vague @mention gets a vague result. "@Claude summarize this thread into three decisions and owners, and post it here by EOD" gets something useful.
05 Where should you actually use it?
Your move
Pick one channel with a recurring chore — a standup summary, a triage queue, a weekly digest — and write the hand-off you'd give a new teammate to own it. That exact wording is your first @Claude task. If you can't write a clear hand-off, that's worth knowing too: the task may be fuzzier than you thought.
More Claude lessons →What you can do now
- Understand the shift: Claude Tag is one shared @Claude per channel, not a private DM bot
- Delegate like a manager — write clear, specific hand-offs with the output and deadline you want
- Treat proactive/ambient updates as a dial: on in focused channels, off in noisy ones
- Remember it's beta for Enterprise and Team; an admin opts in (30 days to migrate from the old app)
- Don't over-trust vendor stats — judge it on the work it returns in your channels