What problem does it solve? It prevents API mismatches when working with Cloudflare Sandbox by enforcing the stable package line, so you never accidentally mix stable Worker code with @next preview APIs or container images. ## Core Features & Use Cases - Package Gate: Verifies the npm dependency and container image are both on the stable line before any code is written, and redirects to sandbox-next or sandbox-migrate-to-next when appropriate. - API Contract: Defines non-negotiable stable behaviors such as exec() command strings, startProcess/execStream for streaming, sessions for state persistence, and RPC transport preference. - Retrieval Map: Routes every task (files, ports, tunnels, backups, terminals, code interpreter, bridges) to the exact official documentation page to consult before implementing. - Use Case: You inherit a Worker using @cloudflare/sandbox and need to add background processes; the skill confirms the stable line, points you to the Background processes guide, and keeps you off preview-only APIs. ## Quick Start Ask the assistant to add a streaming command feature to your existing Cloudflare Sandbox Worker while keeping it on the stable package.
