Cowork turns the Claude desktop app into a real working environment — Claude reads your files, runs scripts, drafts documents, and automates the boring parts. It's not a chat upgrade; it's a different category. This lesson covers what it is, how to set it up, the permission model that keeps you in control, and your first session that proves the value.
Update · July 2026: Anthropic is moving Cowork to the cloud. Web and mobile access is rolling out over the coming weeks (Max plan first, other plans to follow), tasks can keep running even when your computer is offline, and Chat + Cowork now share one home tab with one sidebar and search. Everything in this lesson still applies — the desktop app is simply no longer the only door in.
Step 1 of 50% complete
The mental model
A coworker with desk access, not a smarter chatbot
Regular chat is asking a consultant for advice over the phone. Cowork is handing them a laptop with access to your files. Same intelligence — wildly different leverage. Cowork reads files in folders you've connected, edits them, runs code in a sandboxed Linux environment, and hands back finished work.
Predict first
With Cowork connected, how does the way you prompt change?
Setup
Connect a folder — that's the step people miss
Open the Claude desktop app and toggle on Cowork mode in settings.
Click Connect a folder and choose one specific folder for Claude to work in.
Test it: ask list the files in my connected folder.
If you see your real file names, you're set.
The call
Cowork asks which folder to connect. What do you choose?
Do it · the permission model
Auto, ask, or never?
Cowork's security model is the reason you can trust it. Some actions happen automatically, some always ask first, and a couple never happen at all. Sort each one.
Your first session
Start with something you've been putting off
Don't open with "hello." The fastest way to get Cowork is to hand it a real task that would take you 30+ minutes by hand.
A real first taskLook through my connected folder. Find documents from the last 90 days that look like meeting notes or call transcripts. For each: the date, a 2-sentence summary, and any action items that don't seem done yet. Present it as a single Markdown table I can copy.
Resist using Cowork for things you're faster at directly. The win is the tedious stuff — file synthesis, batch operations, anything that'd be 30+ minutes manually.
About Cowork
Cowork is currently a research preview from Anthropic. The Microsoft Copilot version is rolling out through the Frontier Firm program. Same concepts, same work pattern — the entry point just differs.
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Lesson complete
Claude can work on your real files now
What you can do now
Set up Cowork and connect a specific working folder (not your whole drive)
Delegate outcomes instead of asking how to do things
Know which actions are automatic, which ask, and which never happen
Run a real first task that saves you 30+ minutes
Disconnect a folder whenever you want to stop access
Your first 60 minutes with Cowork
Set it up, connect one folder, and run the meeting-notes prompt from the last step. The first time the table appears with real summaries from your real files, you'll feel why this is a different category from chat.
Once Cowork is connected, the biggest immediate win is anything involving many files at once — renaming, sorting, converting, extracting. The patterns that turn hours into minutes.
Hey! I'm your AI Coach for this lesson on getting started with Cowork. Ask me about setup, what to connect, the permission model, or a good first task. What do you want Claude to take off your plate?
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