Setting up and first session

Install an agent, open your project and give a clear first task.

📖 Key ideas

Install Claude Code with npm or the native installer, then run claude in your project folder.
Codex CLI installs with npm and runs with codex.
Sign in with your account or API key.
Start by asking the agent to explain the project structure.
Work on a Git branch so every change is easy to review or undo.

💡 Real-life example: Like a new team member's first day: show them around the office before giving real tasks.

CLICommand-line interface

Project folderWhere the agent reads and edits code

BranchSeparate line of Git work

SessionOne conversation with the agent