Direct Answer (9 September 2026): Claude Cowork is the desktop workspace in the Claude app. It works on local files and apps you approve. It is not Chat and it is not the Chrome extension. Use Chat when the job is a conversation. Use Cowork when the job is a folder, a document, or a multi-step desktop workflow. It ships on Pro, Max, Team, and Enterprise — not Free.
Claude Cowork lets Claude work on the machine, not just talk about the work. Last verified 9 September 2026.
Chat vs Cowork vs Chrome
- Chat — conversation, no local workspace.
- Cowork — local files, Skills, desktop workflows in the Claude app.
- Chrome extension — the page in the browser. Separate install. See Claude in Chrome.
- Claude Code — terminal / repo. Developers.
The error strings people actually search
These belong here and on the limits desk:
- Claude Cowork missing HCS services — the local helper stack did not start. Quit the Claude app, confirm disk space, relaunch. If it persists, reinstall the desktop app. Do not treat this as a chat usage-limit.
- Failed to start Claude’s workspace / not enough disk space — free space on the volume that holds the workspace, then retry. Cowork and Code spin their own copy of the server.
- Couldn’t start this server for Cowork and Code sessions — same class. The session runner failed to boot. Restart the app; do not keep retrying from Chat.
- Cowork not working — confirm you are in the desktop app on a paid seat, not claude.ai Chat and not the Chrome side panel.
How Cowork works
In the desktop app Claude can read folders you grant, write documents, run Skills, and call MCP tools. Actions ask for approval. It is not a silent screen-scraper.
What it can automate
File management, document creation (DOCX, XLSX, PPTX, PDF), data cleanup, and cross-app handoffs you approve. It is not a replacement for Claude Code on a repo.
Cowork vs Claude Code
Code is the terminal path for developers. Cowork is the visual path for operators. Both sit on Pro / Max / Team / Enterprise. Matrix: Cowork vs Code vs Agent SDK.
Getting started
Install the Claude desktop app. Open a Cowork session. Grant the folder. Describe the job. Approve the first file write before you let it run a batch.
Frequently Asked Questions
What is Claude Cowork?
Desktop workspace in the Claude app for files and local workflows.
Is Cowork included in Claude Pro?
Yes. Pro, Max, Team, Enterprise. Not Free.
Can Cowork see everything on my screen?
Only apps and folders you grant.
Do I need to code?
No.
Related: Chrome extension · limits and errors · pricing · reference hub.
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