# Sandbox Next

> Sandbox SDK 1.0 preview tag

**Subcategory:** Cloudflare  
**License:** Apache-2.0  
**Source:** https://github.com/cloudflare/skills/blob/main/skills/sandbox-next/SKILL.md

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## When it is useful

Use when building or changing Cloudflare Sandbox apps on @cloudflare/sandbox@next (Sandbox SDK 1.0 preview)—code execution, AI runners, interpreters, CI-like jobs, terminals, files, mounts, tunnels, preview URLs, lifecycle, or errors. Not for the default stable package (use sandbox-stable) or for porting stable to @next (use sandbox-migrate-to-next).

## The Catch

Preview Catch: this is @cloudflare/sandbox@next, not the stable default. Vendor skill for Cloudflare.