stage · What AI actually is
08Chat versus agent
The difference between "it suggested" and "it did it"
This is one of those things that is hard to grasp until you see it. And it completely changes what the work feels like.
Chat is the familiar shape. You ask, it answers in text. It gives you code, you copy and paste it yourself. It touches nothing; you do everything.
An agent is AI with hands. It reads your files itself, edits them itself, runs commands itself, sees the error, fixes it, runs again. You set the task and watch it happen.
Roughly the difference between "someone talked me through changing a tyre on the phone" and "someone came and changed the tyre". Both are useful, but they are very different experiences.
For what we're doing here, you want an agent. It's what turns "I'm not a programmer" into "my site is live". You don't write code - you explain what it should do and check the result.
Where to get one: Claude Code, Codex, Cursor and similar tools, and there's a whole stage about them further down. Agents have also moved into the regular apps: Claude has Cowork, ChatGPT has Work mode. There the AI builds spreadsheets, slide decks and even sites on its own while you get on with your day.