AI ENGINEERING OS

Your AI engineer.With its own machine.

Every account gets a persistent cloud sandbox. Connect GitHub, hand it an issue, and it analyzes the repo, writes the code, runs the tests, and opens a pull request. Real engineering. Not chat.

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ClaudeGeminiCodex

sandbox · acme/dashboardlive

Claude · Sonnet· sandbox

PERSISTENT SANDBOX

Watch it actually do the work.

Five stages. One scroll. From connecting your repo to opening a reviewed pull request — all inside your own dedicated cloud machine.

01 · Connect

GitHub linked, credentials encrypted.

02 · Spin up

Sandbox boots. Repo cloned. State preserved.

03 · Analyze

Reads files, dependencies, issues, structure.

04 · Execute

Writes code. Runs tests. Validates output.

05 · Ship

Branch pushed. Pull request opened.

01 / 05

acme/dashboard

Connect/

Spin up/

Analyze/

Execute/

Ship

step 01

Connecting your GitHub

GitHub account linked

Credentials encrypted at rest

Scoped access · 3 repositories

step 02

Your sandbox is booting

A dedicated cloud machine spins up. Your repo is cloned in. State persists across every future session.

Container provisioned

Cloned acme/dashboard

Indexed 1,284 files

sandbox-acme-dashboardbooting

cloning…0%

8 vCPU

compute

16 GB

memory

20 GB

disk

issue #218

Dark-mode toggle doesn't persist on reload

buguiopened by petra

ai assessment

Toggle never writes to localStorage. Need to hydrate from storage on mount and persist on change.

file treescanning…

app

components

theme-toggle.tsxcandidate

lib

storage.tscandidate

tests

package.json

components/theme-toggle.tsx+5 −1

terminal · sandboxexecuting

fix: persist dark-mode preference across reloadsacme/dashboard #341 · fix/persist-theme → main

open

lintrunning

typecheckrunning

unit testsrunning

buildrunning

+24

added

−7

removed

47s

elapsed

Claude Sonnet

model

WORKFLOW

Three steps. Then it ships.

01

Connect GitHub

Link your account. Repositories, branches, and issues sync into your workspace.

02

Hand it a task

Reference an issue or describe the change. The sandbox spins up and starts working.

03

Review & merge

Inspect the diff and execution history. Push the branch and open a PR with one click.

FAQ

Questions, answered.

Those tools live in your editor and respond to prompts. Sarjan runs in its own cloud sandbox, has real terminal access, persists state between sessions, and ships pull requests — not suggestions.

Inside an isolated cloud sandbox dedicated to your account. The repo is cloned in, and execution stays sandboxed. Credentials are encrypted at rest.

Claude, Gemini, and Codex are available inside every sandbox. The platform routes each task to the most appropriate model and presents one unified experience.

Always. Work lands on a new branch inside the sandbox. You inspect files, execution history, and the diff — then choose whether to push and open a PR.

Yes. Your sandbox keeps repository state, files, history, and prior context. The AI doesn't start from scratch each time you return.

early access

Stop chatting with AI. Start shipping with one.

No spam. One email when access goes live.