Hand Off a Whole Job with Cowork · Lesson 1 of 6
What Cowork is, and when to use it (or not)
15 minutes. Learn what Cowork does differently from chat, then pick three real jobs to hand off.
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You probably use Claude like this. You ask a question. It answers. You ask for a change. It changes it. You copy the result into Word or Excel, fix the formatting, and save it yourself.
That's chat. It's great for short things. It's slow for big jobs, because you are the one carrying every piece from step to step.
Cowork works differently. You describe the finished result you want. Claude works out the steps, does them, and hands you back the file.
Anthropic describes Cowork as Claude taking on complex, multi-step tasks and carrying them out for you. In its own words, you can describe an outcome, step away, and come back to finished work.
Here is what that means at your desk, according to Anthropic's help pages:
- It makes real files. Excel spreadsheets with working formulas, PowerPoint presentations, formatted documents, and organized folders.
- It can work in a folder on your computer. In the Claude Desktop app, you give Claude access to a folder. It can read the files there, organize them and create new ones, without you uploading and downloading each one.
- It asks before deleting. By default, Cowork asks your permission before it permanently deletes any file.
- You can step in. You can correct course or give more direction while it works.
- The heavy lifting happens somewhere safe. Anthropic says Cowork's work runs in an isolated, temporary environment on its servers, separate from your computer.
Cowork is on paid plans: Pro, Max, Team and Enterprise. The desktop app runs on Mac and Windows.
Anthropic's help page gives the steps. In the Claude Desktop app (or on the web, or in the mobile app), find the message box and select Cowork. Then describe your task. To go back to regular chat, select Chat.
If you don't see a Chat or Cowork choice, you may already have the new combined Claude. Anthropic says that on Pro and Max plans with the new experience, Claude works out what kind of task it is for you. Every conversation starts as a chat and moves into Cowork when a job needs it. Same habits, one less click.
To let it work with files on your computer, Anthropic's getting-started tutorial says to select Work in a folder in the chat bar and choose the folder. Folders you've given Cowork access to show up under Trusted folders.
Here's a simple test. Ask: "Is the result a file, and does it take more than three steps?"
Use Cowork when:
- The finished thing is a file: a report, a deck, a document set, a cleaned-up folder.
- The job has several steps you'd normally do by hand: open five spreadsheets, combine them, total them, chart them, write a summary.
- You can describe what "done" looks like before you start.
- You'd happily hand it to a capable new hire with a one-page note.
Use plain chat when:
- You want a quick answer, an idea, or a rewrite of one paragraph.
- You're still figuring out what you want. Think it through in chat first, then hand off the job.
- The job is one step. Cowork can do it, but Anthropic notes that multi-step tasks use a lot more of your plan's usage than simple questions do. Don't spend it on a one-liner.
Do it yourself (or keep a person in charge) when:
- The job sends something to a customer, signs something, or moves money. Anthropic's own advice is to stay close and review what Claude does when the work has real consequences, like money, messages sent as you, or important files.
- The only copy of the files is the one you'd point it at. Make a copy first (Lesson 5 shows how).
- The files hold things that shouldn't be shared: payroll, bank statements, health records, passwords. Anthropic's safety page says to be cautious about giving Cowork access to financial documents, credentials or personal records.
- You can't explain what "done" looks like. If you can't brief it, you can't check it.
At our fictional Comfort Zone Heating & Cooling, Marisol runs the office for 20 people. She listed every job that takes her more than an hour a month and ran each through the test.
- Monthly service report for Ray. She pulls call counts from three spreadsheets, totals them, makes two charts and writes a paragraph. Two hours a month. A file, many steps. Cowork.
- Slides for the quarterly team meeting. Ray hands her a page of scribbled notes. One afternoon a quarter. A file, many steps. Cowork.
- The "Scans" folder. 600 scanned warranty cards and permits, named things like "scan_0412.pdf." A folder, many steps. Cowork, on a copy.
- Answering a customer's billing complaint. A person handles that. Not Cowork, not chat.
- "What's a polite way to say we're booked until Tuesday?" One step. Chat.
Notice what she left out. The billing complaint touches money and a customer's feelings. That stays with a person, every time.
- Open the Claude Desktop app. Find the message box and check what you see: a Chat and Cowork choice, or one combined box. Either is fine.
- Write down every job that takes you more than an hour a month. Aim for eight to ten.
- Run each one through the test: Is the result a file? More than three steps? Can you describe "done"? Does it touch customers, money or private records?
- Pick three jobs for this course, one of each kind if you can:
- A report from spreadsheets or exports (Lesson 3)
- A deck or a document from notes or drafts (Lesson 4)
- A cleanup or batch job on a folder of files (Lesson 5)
- Open three copies of the Hand-Off Brief template and write just the job name at the top of each.
Check it worked
- You know where to start a Cowork job on your screen, or you know you have the combined experience.
- You have three jobs picked, each one ending in a file.
- None of the three sends anything to a customer or moves money on its own.
- You have one Hand-Off Brief started per job, with the name filled in.
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Next: the one page that makes a hand-off work. The brief.
→ Lesson 2: Write a hand-off brief