Sandbox Next
Build or maintain Cloudflare Sandbox apps on @cloudflare/sandbox@next (SDK 1.0 preview).
Install
npx skills add cloudflare/skills --skill sandbox-next -g -a claude-code -y- Repository
- cloudflare/skills3.2k
- Category
- DevOps
- Updated
- 4d ago
- License
- Apache-2.0
- Context cost
- Mediumabout 1,675 tokens
- Runs scripts
- No, instructions only
What it does
Build or maintain Cloudflare Sandbox apps on @cloudflare/sandbox@next (SDK 1.0 preview). Use sandbox-migrate-to-next when porting a stable app.
Sandbox SDK, @next (1.0 preview)
Isolated Linux environments on Cloudflare Containers, driven from Workers.
Prefer preview docs and installed @next types over memory. APIs change; this skill is a gate, a contract, and a retrieval map, not a full manual.
We recommend new projects on this line. Apps still on the default package use sandbox-stable. Port only when asked, via sandbox-migrate-to-next.
1. Gate, confirm the package line
Before writing code, inspect the app:
| Check | Must match |
|---|---|
| npm dependency | @cloudflare/sandbox@next (or another preview tag) |
| Container image | Same line (e.g. cloudflare/sandbox:next, next-python) |
| If you find… | Action |
|---|---|
Default @cloudflare/sandbox (no @next) | Stop. Load sandbox-stable. Do not apply this skill’s APIs. |
User wants to port stable → @next | Stop. Load sandbox-migrate-to-next. |
| Self-deployed bridge only | Bridge is not on the 1.0 preview line yet. Keep bridge on stable package + image. Bridge (stable) |
Never mix an @next Worker package with a stable container image (or the reverse).
Skills install: Agent setup · cloudflare/skills
