Run multiple isolated agents in a single Sandbox

The @vercel/sandbox SDK now supports multiple Linux users and groups, so you can run agents side by side in a single Sandbox.

Each agent runs as its own user with a private home directory. A group opens a shared workspace when they need to collaborate. This makes multi-agent systems easier to build.

Call createUser for each agent; its commands and file operations run as that user, and users can't read, write, or list each other's files. To set up a shared directory, call createGroup and add users to it.

const sandbox = await Sandbox.create();

const coder = await sandbox.createUser("coder");
const reviewer = await sandbox.createUser("reviewer");

// Each user is isolated to its own home directory
const cmd = await coder.runCommand("whoami");
console.log(await cmd.output());

// Share work through a group directory
await sandbox.createGroup("project");
await coder.addToGroup("project");
await reviewer.addToGroup("project");

Learn more in the Vercel Sandbox documentation.