deno-sandbox

Execute untrusted code in isolated Deno sandboxes with Firecracker microVMs.

Updated Apr 22, 2026
One-click install
npx skills add https://github.com/mkrlabs/specflow --skill deno-sandbox-mkrlabs
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: deno-sandbox
Source: https://github.com/mkrlabs/specflow/tree/main/.claude/skills/deno-sandbox
Command: npx skills add https://github.com/mkrlabs/specflow --skill deno-sandbox-mkrlabs

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Securely execute untrusted code using Deno sandboxes to prevent execution from impacting the host system.

Core Features & Use Cases

  • Secure isolation with Firecracker-based microVMs providing separate filesystem, network, and process space.
  • Lifecycle management and resource configuration to ensure automatic disposal and guarded execution.
  • API-driven tooling for code playgrounds, AI agent tool execution, and multi-tenant sandboxed tasks.

Quick Start

Create a sandbox with Sandbox.create(), run a command inside it, and capture its output.

Frequently Asked Questions about deno-sandbox

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

FAQPage Schema
How do I securely execute untrusted code in a Deno sandbox?

You can securely execute untrusted code in a Deno sandbox by using Firecracker-based microVMs to isolate the filesystem, network, and process space from the host system.

How does Firecracker microVM isolation work for running AI-generated code?

Firecracker microVM isolation works by providing separate filesystem, network, and process space for AI-generated code execution, preventing untrusted commands from impacting the host system.

Can I use Deno sandboxes to build an online code playground?

Yes, you can use Deno sandboxes to build an online code playground by leveraging the high-level Sandbox API to create isolated environments and capture command outputs safely.

What is the best way to run multi-tenant sandboxed tasks with Deno?

The best way to run multi-tenant sandboxed tasks is using lifecycle management and configurable resources in Deno sandboxes to ensure automatic disposal and guarded execution.

Do I need Firecracker microVMs to prevent untrusted code execution from impacting the host?

Yes, Firecracker microVMs provide the secure isolation layer required to prevent untrusted code execution from impacting the host system, ensuring guarded execution and automatic disposal.

Why should I use Deno sandboxes for code execution instead of other isolation tools?

You should use Deno sandboxes for code execution because they combine Firecracker microVMs with a high-level API, offering configurable resources and secure isolation for untrusted code.