sandbox-sdk

What is sandbox-sdk?

sandbox-sdk is a Claude skill by cloudflare that build sandboxed applications for secure, isolated code execution on Workers. It is listed under Security and has 3,091 GitHub stars.

Is sandbox-sdk safe to install?

We have not scanned sandbox-sdk yet because its SKILL.md could not be fetched. Read the source before installing.

How do I install sandbox-sdk?

1. Install with the skills CLI. Works for Claude Code and other agents that read skills.

   npx skills add https://github.com/cloudflare/skills --skill sandbox-sdk

2. Or copy it by hand. Claude Code loads any folder with a SKILL.md from ~/.claude/skills.

   git clone https://github.com/cloudflare/skills
   cp -r skills/sandbox-sdk ~/.claude/skills/sandbox-sdk

3. Use it. Claude loads the skill when a task matches its description. You can also name it in your prompt.

   Use the sandbox-sdk skill to …

Or ask Claude to set it up

Paste this into Claude Code and it installs sandbox-sdk for you:

Install the "sandbox-sdk" skill from https://github.com/cloudflare/skills into ~/.claude/skills, then tell me in one line what it does.

More from cloudflare/skills

This repository has 8 Claude skills on MCPMods.

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• workers-best-practices: Review and author Workers code against production best practices and wrangler.jsonc conventions (Low risk)
• wrangler: Deploy and manage Workers, KV, R2, D1, Vectorize, Queues, Workflows (Low risk)
• web-perf: Audit Core Web Vitals and render-blocking resources (Low risk)
• agents-sdk: Build stateful AI agents with scheduling, RPC, and MCP servers (Low risk)
• cloudflare-email-service: Send transactional email and route inbound mail with Cloudflare Email Sending and Email Routing (Low risk)
• durable-objects: Stateful coordination with RPC, SQLite, and WebSockets (Low risk)