Backend-as-a-Service with built-in auth, data, and more
Rayfin is a managed Backend-as-a-Service platform that creates and operates application backends from data models defined with TypeScript decorators. It provides databases, authentication, APIs, storage, and hosting for teams building applications. Its catalogue skill and plugin help coding agents create and work with Rayfin projects.
Latest release typescript-sdk-1.36.2 — Rayfin SDK and CLI: v1.36.2 · 8 Oct 2026
4 files for GitHub Copilot: rayfin md.instructions.md, rayfin rayfin-cli.instructions.md, rayfin rush.instructions.md, rayfin ts.instructions.md — 4,711 tokens loaded in every session.
.github/instructions/md.instructions.md A 861 tok .github/instructions/rayfin-cli.instructions.md A 2,048 tok .github/instructions/rush.instructions.md A 1,545 tok .github/instructions/ts.instructions.md A 257 tok These files are microsoft/rayfin's own configuration — they tell GitHub Copilot how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.