Build or maintain Cloudflare Sandbox apps on @cloudflare/sandbox@next (SDK 1.0 preview). Use sandbox-migrate-to-next when porting a stable app.
Install
npx skills add cloudflare/skills --skill sandbox-nextnpx skills add cloudflare/skills --skill sandbox-next -a claude-code -gnpx skills add cloudflare/skills --skill sandbox-next -a codex -ggemini skills install https://github.com/cloudflare/skills.git --path skills/sandbox-nextgh skill install cloudflare/skills sandbox-nextgit clone --depth 1 https://github.com/cloudflare/skills /tmp/cloudflare__skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/cloudflare__skills/skills/sandbox-next ~/.claude/skills/sandbox-next # Claude Code
cp -R /tmp/cloudflare__skills/skills/sandbox-next ~/.agents/skills/sandbox-next # Codex, Cursor, Gemini CLI, Copilot, OpenCode