The most common reason people freeze at the terminal: "What if I break something?" Let's kill that right now, before your first build — because the fear is the only real obstacle, and it's based on something that isn't true.
Two safety nets are on by default:
- /rewind — Claude Code automatically saves a checkpoint before every change it makes. Type /rewind (or press Esc twice on an empty input) and you can roll back to any earlier point — restore the files, the conversation, or both. It's a time machine for your work, and it's already running
- Git — a permanent "this worked" save you can always return to. You don't memorize commands; you just tell Claude "commit this as a checkpoint" and it's locked in.
Experiment freely. The worst case of anything you try is "go back to the last checkpoint" — minutes lost, never your project. Careful people learn slowly. You don't have to be careful; you have to know the undo button exists. It does. It's /rewind.