Claude Code is Anthropic's coding agent. You give it a job in plain language — "the checkout page double-charges when the button is clicked twice; find and fix it" — and it reads the project, writes the change, runs the tests, and reports back. It usually runs in a terminal next to your editor, and also works in an IDE extension, the web, and Slack. It is aimed at people who already have a project to work in, but if you don't code, the useful part is that it does the finding-and-editing steps for you while leaving the decisions to you.
What the agent actually handles
Claude Code is built for tasks that take more than a quick autocomplete. It maps an unfamiliar codebase and explains how the pieces fit. It turns an issue into a change, following imports across the repo and running your tests as it goes; when something breaks, it can keep going instead of stopping at the first error. That makes it a fit for the chores nobody enjoys: renaming things everywhere, updating a dependency, or migrating code to a new interface. Because it runs locally and connects directly to the model, your code isn't sent through a separate index.
Keeping it on the rails
It asks for permission before changing files or running commands, so you can approve work step by step. Two habits make it much more reliable: describe the goal and any constraints up front, and review the diff before you keep it. For bigger changes, ask it to write a short plan first and correct that, rather than correcting finished code. Long refactors and migrations can run for a while, so it helps to commit as you go and keep an eye on usage.
Cost and expectations
Access comes with a Claude subscription or through a metered API account, and the allowances differ by plan; current terms are on the official Claude Code page. It is not a substitute for your own judgment — it will confidently do the wrong thing sometimes, and it is not meant to replace a developer, only to carry the work that doesn't need a human at every keystroke.
For an AI-native editor rather than a terminal agent, see Cursor. If you mainly want suggestions while you type, GitHub Copilot is a gentler start. Our AI tool guide compares the wider set of options.
