A coding agent in your terminal
It works on the files you already have, in the repo you're already in. Tell it what you want. It opens the files, makes the change, runs the tests, and reads what came back.
Open source, Apache-2.0. Works with the tools you already use — Claude Code, Codex, Gemini, and Qwen run through the same command.
It writes the code and runs it
Say what you want in plain words. Dev reads the repo, makes the change across files, runs commands to check its work, and shows you the diff.
Runs in your shell
Type hanzo dev in any repo. Give it a task and it works on its own — or hand it the task up front and let it run headless.
Splits the work
Big jobs go to several agents at once. Auto Drive breaks the goal into steps and keeps going until the work is done.
Our best model, or any model
Enso is our frontier model, and it leads several public benchmarks. One login also gets you every other model on the gateway, cloud agents for long jobs, and a way to deploy.
What you get
Commands run in a sandbox
Opening a repo means running its scripts, so it runs them in a sandbox every time. Drop it for one run with --no-sandbox. It never gets saved.
It reviews its own work
A watcher checks every change in a separate worktree and hands you fixes you can apply. It never blocks the session.
Nothing hidden
You see the model, the whole prompt, and the context window on every request. No silent model swaps. No quiet compression.
It can use a browser
Native browser control over CDP, with screenshots inline — so it can check the change that only shows up on a page.
Your tools
Add MCP tools for files, databases, APIs, or anything you write yourself. The repo’s own tools stay off until you ask for them.
Think harder when it matters
Set how hard it thinks per task — medium, high, or xhigh. Trade speed for depth only when the work needs it.
Choose how to get started with Dev
Dev runs in your terminal, in your editor, and in the cloud. Work beside it locally, or hand it the task and let it keep going while you step away.
Install the CLI
Works the same in bash, zsh and fish.
Run it in your IDE
Runs in the terminal your editor already has.
Open a terminal
Install it, sign in, and type hanzo dev in any repo.