The coding agent that checks its own work.
It plans, writes the change, runs your tests and opens your app in a browser. Then it tells you what it saw.
- Your idea
- Agent at work
- The result
An idea becomes a website.
Build a coffee shop website. Warm colours, a simple menu, and prices in AED.
A real session, from prompt to a working page.
Three modes. You choose.
Switch any time with one command.
/planPlan
Reads your code and proposes numbered steps. Changes nothing until you approve.
/buildBuild
Makes the change, runs it, and fixes what fails. Splits big jobs across helpers that work in parallel.
/designDesign
Agrees the screens with you first: layout, states, and one main action per screen.
- Your approval
- Agent at work
- The result
You decide what happens next.
Build a team chat app with channels and a clean, simple interface.
- 1Create channels and conversations
- 2Add a message composer
- 3Check the chat flow
Review the plan. Nothing starts until you approve.
It does not say done until it is.
Every change goes through the same four steps.
- Reproduce
- Change
- Run tests
- Check the page
Agree the design before the code.
Design Studio shows each screen as an outline. You approve it, the agent builds to it, then checks the result against it.
Pick a model. Or bring your own.
The same agent runs on every model below.
10 real bug-fix tasks per model, same agent and settings. Method on the benchmarks page. →
Your own key
Point it at any OpenAI-compatible endpoint. Your key stays on your machine.
code-ae provider add mine --endpoint <url> --model <id>Every token counts.
Most of what the agent re-reads is served from cache, which costs about a tenth.
- 2¢per solved task on the default model
- 0tokens spent tidying long sessions
- 1×each file is sent once, never twice
In your terminal and your editor.
The CLI and the editor extension run the same agent and share sessions and project notes.
- Your idea
- Agent at work
- The result
One prompt. A working checkout.
Add a checkout with a cart summary, delivery details, and order confirmation.
You stay in charge.
- Review every edit before it lands.
- Undo any turn from a checkpoint.
- Plan mode cannot change a file.
- Project notes live in a file you can read.