Agent Sandbox

Overview

Agent Sandbox provides isolated cloud environments where AI coding agents can build, run, and test full-stack applications without any risk to your local filesystem or development setup. Each sandbox spins up as an independent container with its own runtime, file system, and network stack, giving the agent complete freedom to install dependencies, start servers, and execute arbitrary code in a safe, disposable environment.

How It Works

When activated, the skill provisions a lightweight cloud sandbox (typically container-based) and connects it to the agent's tool interface. The agent can then write files, run shell commands, start web servers, and access the running application via a public or tunneled URL — all within the sandbox boundary. Once the session ends, the sandbox is torn down, leaving no artifacts on the host machine.

Key Features

• Full isolation: Code execution, package installation, and server processes run entirely in the cloud sandbox, protecting your local environment from unintended side effects.
• Full-stack support: Handles frontend, backend, and database layers in a single sandbox, enabling end-to-end prototyping.
• Live preview: Applications running inside the sandbox are accessible via URL, allowing real-time inspection and testing.
• Ephemeral by design: Sandboxes are disposable — spin up for a task, tear down when done. No cleanup required.

When to Use

Agent Sandbox is ideal when you want an AI agent to prototype, debug, or demonstrate a working application without polluting your local dev environment. It is especially useful for untrusted code execution, rapid full-stack prototyping, and CI-style validation of agent-generated code.