The real work happens in Claude Code, and the other three are convenient doors for specific moments. Tom once answered this in the alumni group with a single number: 99% of his time runs in Claude Code, and the remaining percent goes to chat, mostly as a Google replacement.
I walk our graduates through their first steps after the workshop, and this question lands with me more than any other, by a wide margin. I counted it dozens of times over the last five months in our groups. The confusion makes complete sense, because underneath all four sits exactly the same model. The only difference is which hands you give it.
Chat is a conversation without hands: knowledge questions, quick phrasing, a second opinion. It never touches your files, so the system you built in the workshop simply is not there. Claude Code is the hands: it reads the brain, runs the agents, writes to files and remembers through them. That is the system's home, and it stays home as you advance. Cowork is the same engine in a softer wrapper, like Claude Code with training wheels: great for the first week, and starts to pinch the moment you want parallel windows or finer control. And Claude Design is a sketch desk: start the visual concept there, then export the result into Claude Code and keep working.
One more thing about Design, because we watched this up close in its launch week: it has a separate weekly usage quota, unrelated to your regular plan. One of our graduates upgraded her subscription and could not understand why it did not help (the quota simply resets the following week). So when Design stops mid-flow, breathe. Nothing is broken on your side, its own separate meter just ran out.
A prompt, on the house
Before every new task, help me pick a work surface. Walk me through three questions:
1. Does the task touch my system's files (brain, agents, outputs)? ← Claude Code.
2. A knowledge question or a short piece of writing, no files? ← chat, and we saved spinning up the whole system.
3. An early visual concept? ← Design, and we export the result to Claude Code at the end.
Answer in one line: the chosen surface, and the reason in plain words.Paste it once at the start of a workday, and within a week the right choice starts happening on its own.
