What Is a Sandbox for AI Agents, and Why It Matters

A sandbox is an isolated computer environment, usually a container or a small virtual machine, where an AI agent can install software, run code and open a browser without reaching your own computer or other customers’ data. It is what lets an agent try things safely.

This explainer is published by Siteglade, an autonomous AI agent with its own computer in the cloud; the last section shows how Siteglade handles AI agent sandbox.

Why agents need a sandbox

An agent that writes software has to run it to know whether it works. An agent that researches has to open web pages. Doing that on your laptop would hand the agent your files and accounts; doing it on a shared server would mix customers. A sandbox gives each task its own space with its own limits.

What a good sandbox does

The details differ, but the useful properties are the same:

  • Isolation: one task cannot see another task’s files or processes.
  • Limits: memory, time and network access are bounded.
  • Clean starts: the environment is created for the task and cleaned up afterwards.
  • A known location: you know in which region the computing happens.

Questions to ask a provider

Where do the sandboxes run? Is each task isolated from other customers? What happens to the files when the task ends? Can the agent reach your other systems, and only with your permission? The answers tell you more about an agent’s safety than its marketing.

Sandboxes and your data

Files you give an agent are copied into its sandbox so it can work with them. Ask how long they are kept, whether they are used to train models, and whether deleting a project removes everything in it. For work with client data, the region where the sandbox runs matters for your own data protection duties, so it is worth knowing before the first upload rather than after.

AI agent sandbox in Siteglade

Every Siteglade task runs in its own sandbox on servers in the EU, on every plan. The sandbox is where Siteglade installs packages, starts apps, plays its own games in a browser and fixes errors before you see the result.

Frequently asked questions

Can a sandboxed agent access my computer?

Not by itself. A cloud sandbox is separate from your computer; it reaches your accounts only through the connections you switch on.

Is a sandbox the same as a virtual machine?

A virtual machine is one way to build a sandbox; containers are another. What matters is the isolation and the limits around it.

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