Field Guide · ClaudeTag

ClaudeTag

Claude as a tag-able teammate in Slack — and what it teaches us about delegating to agents.

Compiled 24 June 2026 · one day after launch · grounded in Anthropic primary sources1 · written for a Prism/agent operator
The one-paragraph version ClaudeTag puts Claude into your Slack workspace as a named team member you summon with @Claude. It takes a request, breaks it into stages, and works through them with whatever tools an administrator has scoped to that channel — asynchronously, in full view of the channel, so anyone can steer it or pick up where the last person stopped. It remembers what happens in its channels so you stop re-explaining context, and (optionally) speaks up on its own when something needs attention. Anthropic frames it as "the beginning of an evolution of Claude Code" — the same agent, made proactive and multiplayer. It runs on Opus 4.8, in beta on Team and Enterprise plans.1,2

1. What it actually is

ClaudeTag is not a chatbot bolted onto Slack. It is the Claude Code agent, given three things it didn't have before: a persistent identity in your workspace, memory of the channels it lives in, and the ability to act without being prompted. Anthropic's framing is deliberate:

"the beginning of an evolution of Claude Code: it makes the model even more proactive, and it works better with a full team."1

You interact with it on three surfaces:2

The internal proof point Anthropic cites: 65% of their product team's code is now written by their internal version of ClaudeTag.1

2. The core loop: tag → decompose → work

When you tag it, ClaudeTag "break[s] its task down into stages and then work[s] through them in turn, using the tools it has access to."1 Two consequences matter:

Prism transfer This is exactly the discipline in Craig's routing policy — "orchestrator stays high, delegates execution, decomposes into stages." ClaudeTag externalises it into Slack. A good @Claude task reads like a good subagent prompt: one clear objective, the stages implied or stated, and the tools it'll need already scoped in.

3. Memory: it learns your channel

ClaudeTag "builds context by remembering relevant information from the channels it's in,"1,2 and with permission "can even automatically learn from other Slack channels and data sources."1 The point is to stop re-explaining context every session.

Two guardrails worth internalising:

4. Ambient mode: when it speaks first

With ambient behaviour enabled, ClaudeTag "will proactively keep you updated about whatever it thinks you might need to know … flag relevant information from across the channels it's in … and follow up on threads or tasks that have gone quiet without being resolved."1

Prism transfer This is the same shape as Craig's prism-guardian and the medic fleet: poll state, compare against a baseline, raise the anomaly. Ambient ClaudeTag is a guardian you talk to. The lesson for prompt design: an agent that knows what "normal" looks like can be trusted to interrupt — define the baseline, or it'll either spam or stay silent.

5. Multiplayer: one Claude per channel

Within a channel there is one ClaudeTag that everyone shares: "anyone can see what it's working on, and can pick up the conversation from where the last person left off."1 Admins can stand up separate Claude identities for different uses — a build-bot in one channel, a finance assistant in another — each with its own scope and memory.1

6. Scoping & control — the part that matters for safety

This is where ClaudeTag earns its place in an enterprise — and where the transferable craft lives. Administrators control three things:

LeverWhat it does
Access bundlesA named set of credentials, repository grants, plugins, and instructions that Claude uses on behalf of anyone in the channels it covers.3
Channel scopeElevated credentials (extra repos, sensitive data) can be confined to specific private channels. Memory stays scoped to the channels an admin defines.1,3
Spend capsMonthly channel cap from the org balance: $100 / $250 / $500 / $1,000 (default) / Unlimited / custom up to $1M. Work over the cap is declined entirely, not partially executed.2,3
Audit logAdmins can "view a log of everything that @Claude has done."1

The permission model

Access stacks at three levels: organization-wide credentials, workspace (all public channels), and private-channel grants for sensitive work. Only Primary Owners or Owners can configure it; on Enterprise, member access can be role-restricted.2

The big idea for Craig An Access bundle's "instructions" field is a per-channel system prompt, and its credential/repo grants are exactly the "least-privilege tool scope" his routing policy already enforces ("never delegate risk-control to coder directly"). ClaudeTag makes the pattern concrete: scope the tools, write the instructions, cap the spend, read the log. That is a complete delegation contract — and it's the template for every subagent prompt he writes, in Slack or not.

7. Setup, in brief

Four steps, Owner-only writes:3

  1. Pair the workspace — install the Claude for Slack app; a Slack admin runs @Claude connect for a 15-minute pairing code; choose whole-workspace or specific channels.
  2. Configure access — create named Access bundles (credentials, repo grants, plugins, instructions); connect third-party tools. GitHub is wired separately via the Claude GitHub App.
  3. Set spend limits — cap monthly channel usage (DMs use individual credits, exempt from the cap).
  4. Launch — enable and validate with /invite @Claude then @Claude summarize this channel.
Note Network teams may need an IP-allowlist request in early — approval can take several days.3 Beta, Team & Enterprise only, on Opus 4.8.1

8. ClaudeTag vs. Claude Code — when to reach for which

Claude CodeClaudeTag
Lives inYour terminal / IDEYour Slack workspace
ModeYou drive, turn by turnYou delegate; it works async
AudienceMostly soloMultiplayer — shared per channel
InitiativeReactiveProactive (ambient mode)
MemorySession / files you give itPersistent, channel-scoped
Best forDeep hands-on work in a repoStanding duties a team watches: triage, status, on-call, recurring ops

They're the same lineage. Reach for Claude Code when you are in the loop on a hard change; reach for ClaudeTag when a standing duty should run where the team can see it.

9. Where to go next

Primary source to read first: Introducing Claude Tag — Anthropic Newsroom. It's short and it's canonical.

Community for wisdom: r/ClaudeAI for real-world setups as they emerge, and the Anthropic Discord for beta-specific scoping questions.

Ask your teacher This guide is a companion to a hands-on course. If anything here is unclear — or you want to draft a real Access bundle for a Prism-ops channel, or convert one of your subagent prompts into a ClaudeTag delegation — ask. That's what the teaching session is for.
  1. 1. Introducing Claude Tag — Anthropic Newsroom (24 Jun 2026).
  2. 2. What is Claude Tag? — Claude Help Center.
  3. 3. Set up Claude Tag — Claude.ai Documentation.
  4. 4. Anthropic's Claude Tag is learning your company, one Slack message at a time — TechCrunch (23 Jun 2026).