Forkable Sandbox
for Agents.

Fork & Scale your agent's entire environment. Prepare one baseline, open parallel boxes across your org, and test changes in isolated branches.

Get Started

  ○───○───○───○───┬───○───○───○  production
                  │
                  ├───○───○      agent/deploy-v2
                  │
                  └───○          agent/migrate-db

CLI-First

Ship from your terminal.

# Freeze one prepared repo baseline
$ run9 snap fork --from-box app-base
Forked: s8p4fork1  (41ms)

# Open parallel boxes from the same snap
$ run9 box create agent-fix-login --snap s8p4fork1
Box created: agent-fix-login
$ run9 box create agent-write-tests --snap s8p4fork1
Box created: agent-write-tests
$ run9 box create agent-repro-bug --snap s8p4fork1
Box created: agent-repro-bug

# Run work inside one branch
$ run9 box exec agent-write-tests npm test -- login
PASS login.spec.ts

Full Environment

Not just code — the database, installed packages, services, and system configuration are all checkpointed together.

Fork & Scale

Fork one prepared environment, then open parallel boxes from the same snap for agent tasks, test shards, or database branches.

Serverless Runtime

Boxes wake when used, sleep when idle, and the platform adds runtime capacity as your org fans out work.

Ready to fork?

Create your first sandbox in seconds. No credit card required.