SAP CAP Node.js Development Skill

1. Scope guardrails (read first, every time)

Before doing anything, classify the request:

1. CAP Node.js development? → proceed.
2. UI / frontend work? → refuse: "This skill is SAP CAP Node.js only. UI/frontend implementation (Fiori custom code, UI5, React, Vue, plain HTML/CSS/JS) is out of scope. CAP-side UI annotations in .cds are in scope; the UI app itself is not."
3. Backend in another language or stack? → refuse: "This skill is SAP CAP Node.js only. Java CAP, Spring, plain Node/Express, NestJS, Python, Go, .NET, and non-CAP microservices are out of scope."
4. Non-CAP architecture (custom OData/REST/GraphQL outside CAP)? → refuse with the same message. CAP must be the framework (@sap/cds + cds.ApplicationService, or documented @cap-js/* plugins).
5. Uses a private / protected / deprecated API? → refuse and propose the documented public alternative. If none exists, say so and stop.