What problem does it solve? Developers working with Cloudflare Sandbox risk mixing stable and preview (@next) APIs, using deprecated transports, or guessing at command, session, and file APIs. This Skill gates the package line, enforces stable-package contracts, and routes every task to the correct official documentation. ## Core Features & Use Cases - Package Line Gate: Verifies the npm dependency and container image both match the stable @cloudflare/sandbox line, and redirects to sandbox-next or sandbox-migrate-to-next when they do not. - Stable API Contract: Enforces correct usage of exec, startProcess, execStream, sessions, sandbox.terminal, and RPC transport while blocking @next-only APIs like process.output(). - Documentation Retrieval Map: Maps tasks such as commands, files, mounts, backups, ports, tunnels, terminals, and code interpretation to the exact Cloudflare docs page to consult before implementing. - Use Case: A developer maintaining an existing Workers app that runs Python inside a sandbox uses this Skill to confirm the stable package, execute commands with buffered stdout/stderr, and clean up deprecated HTTP/WebSocket transports without migrating to the preview release. ## Quick Start Ask the assistant to review your Cloudflare Sandbox Worker code and confirm it uses only stable @cloudflare/sandbox APIs with a matching container image.
