A little more context
Four things worth knowing
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Cowork put this engine in a window anyone can use. Claude Code is the same agentic engine reached from the terminal, for people who want to work closer to the metal - inside a codebase or their own dev tools. Most non-code work never needs it; Cowork is enough. This note is here for the moment you are curious to go one layer deeper.
Claude Code is a command-line tool that lets you hand coding and other agentic tasks to Claude straight from your terminal. It runs the same engine as Cowork, with no graphical window in the way. It also lives beyond the terminal: on the web, in a desktop app, inside VS Code and JetBrains IDEs, in Slack, and in CI/CD through GitHub Actions and GitLab.
It is a different door to the same room. Everything you learned about briefing, skills, and keeping a human in the loop applies here too.
Claude Code needs a paid Claude subscription (Pro, Max, Team, or Enterprise), a Console account, or access through a supported cloud provider.
Follow the official install guide at code.claude.com. Native installs keep themselves up to date in the background, so you stay on the latest version.
Open your terminal in any project folder and start it with claude. On first use you are prompted to log in.
Type /help to see what is available, and /resume to pick up a previous conversation. From there, brief it like any task.
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Pick what fits. I'll tell you whether to reach for it or stay in Cowork.