deno-sandbox

Execute untrusted code in isolated Firecracker microVMs via the Deno Sandbox SDK.

1|1|Updated Apr 17, 2025

Search Tags:#security #isolation #code execution #deno #sandbox #untrusted code

Ready to run

npx skills add https://github.com/4ster-light/4ster.dev --skill deno-sandbox

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: deno-sandbox
Source: https://github.com/4ster-light/4ster.dev/tree/main/.agents/skills/deno-sandbox
Command: npx skills add https://github.com/4ster-light/4ster.dev --skill deno-sandbox

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill provides a secure and isolated environment for executing untrusted or AI-generated code, preventing potential harm to your system.

Core Features & Use Cases

Isolated Execution: Runs code in a separate microVM, ensuring no access to the host system.
Secure Code Playgrounds: Ideal for building interactive coding environments where users submit their own code.
AI Agent Tool Execution: Safely run code generated by AI models as part of an agent's workflow.

Quick Start

Use the deno-sandbox skill to run the provided typescript code in an isolated environment.

Frequently Asked Questions about deno-sandbox

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I securely run untrusted code in an isolated environment?▼

To securely run untrusted code, you can use a Deno Sandbox to execute scripts within a Firecracker-based microVM. This isolated execution environment prevents potential harm to your host system by managing process spawning and ensuring no unauthorized system access.

What is the best way to execute AI-generated code safely?▼

Executing AI-generated code safely is achieved by running it inside a secure Deno Sandbox. This approach utilizes microVM isolation to manage the sandbox lifecycle, preventing data leakage and ensuring system safety during AI agent tool execution workflows.

How does microVM isolation work for code execution sandboxes?▼

MicroVM isolation works by spawning a separate, lightweight virtual machine for code execution using the @deno/sandbox SDK. This ensures the untrusted code runs completely detached from the host operating system, managing I/O streaming and resource disposal securely.

Can I build a secure code playground using Deno?▼

Yes, you can build secure code playgrounds using Deno by leveraging the @deno/sandbox SDK. It provides an isolated environment that manages process spawning and resource disposal, making it ideal for interactive environments where users submit their own code.

Does running untrusted code in a Deno sandbox prevent data leakage?▼

Running untrusted code in a Deno sandbox prevents data leakage by utilizing Firecracker-based microVM isolation. This ensures the executed code has no access to the host system, safely managing I/O streaming and resource disposal throughout the process lifecycle.