sandbox-sdk

Define secure sandbox lifecycle, commands, and file operations on Cloudflare Workers.

Updated Feb 18, 2026
One-click install
npx skills add https://github.com/daveio/syn-horse --skill sandbox-sdk-daveio
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: sandbox-sdk
Source: https://github.com/daveio/syn-horse/tree/main/.agents/skills/sandbox-sdk
Command: npx skills add https://github.com/daveio/syn-horse --skill sandbox-sdk-daveio

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Build secure, isolated environments to safely run untrusted code, experiment with AI code execution, interpreters, CI/CD pipelines, and developer sandboxes without risking the host system.

Core Features & Use Cases

  • Lifecycle management for Sandbox SDK: provisioning, durability, and cleanup of sandboxed workers.
  • Commands, file I/O, and code interpretation: execute shell commands, read/write files, and run interpreted code in a secure context.
  • Preview URLs and integration: expose services for testing and integration in AI-assisted workflows and dev environments.

Quick Start

Install the Sandbox SDK, initialize a sandbox with getSandbox, and run a simple command to verify the setup.

Frequently Asked Questions about sandbox-sdk

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

FAQPage Schema
How do I run untrusted code securely on Cloudflare Workers?

You can run untrusted code securely on Cloudflare Workers by provisioning an isolated execution environment using the Sandbox SDK, which manages the sandbox lifecycle and handles shell commands, file I/O, and code interpretation without risking the host system.

What is the best way to build an AI code interpreter on Cloudflare Workers?

The best way to build an AI code interpreter on Cloudflare Workers is using the Sandbox SDK, which codifies sandbox provisioning, secure code execution, and preview URL generation for interactive development and AI-assisted workflows.

Does the Sandbox SDK support file I/O and shell commands in a secure execution environment?

Yes, the Sandbox SDK supports file I/O and shell commands within a secure execution environment, allowing you to read, write files, and execute interpreted code safely inside isolated Cloudflare Workers.

Can I use sandboxed code execution for CI/CD pipelines and interactive dev environments?

Yes, you can use sandboxed code execution for CI/CD pipelines and interactive dev environments, as the Sandbox SDK provides lifecycle management, durability, and cleanup for isolated workers supporting trusted code execution workflows.

Do I need the Sandbox SDK runtime and Cloudflare Workers integration to execute code securely?

Yes, you need the Sandbox SDK runtime and Cloudflare Workers integration to execute code securely, because the SDK relies on Workers infrastructure to provision isolated sandboxes and manage the execution lifecycle.

What are the limitations of running untrusted code in a Cloudflare Workers sandbox?

Limitations of running untrusted code in a Cloudflare Workers sandbox include dependency on the Sandbox SDK runtime environment and constraints of the Workers platform for provisioning, executing, and cleaning up isolated code execution sessions.