A getting-started router for Rayfin that scaffolds a new application with the Rayfin command-line tool and then uses the version-locked setup guidance installed in that project. The available description does not specify the application's features or supported platforms.

It is for creating a new Rayfin app and routing subsequent setup work to the matching project skill.

It provides a project-specific starting path and helps keep setup instructions aligned with the installed Rayfin version. There is not enough information here to describe more capabilities accurately.

rayfin — Plugin for Gemini CLI by microsoft

About the project

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.

microsoft/rayfin · 653 stars · on GitHub

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo

git clone --depth 1 https://github.com/microsoft/rayfin

Made for: Gemini CLI.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/plugins/microsoft/rayfin/gemini-extension/github.svg)](https://agentmods.dev/plugins/microsoft/rayfin/gemini-extension)

Your own site

<a href="https://agentmods.dev/plugins/microsoft/rayfin/gemini-extension"><img src="https://agentmods.dev/badge/plugins/microsoft/rayfin/gemini-extension/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/plugins/microsoft/rayfin/gemini-extension"><img src="https://agentmods.dev/badge/plugins/microsoft/rayfin/gemini-extension.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

rayfin scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

The scan reads gemini-extension.json. This mod also ships 1 executable file (scripts/bump-npm-version/index.ts), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

gemini-extension.json · 6 lines

What it actually says

{
  "name": "rayfin",
  "version": "0.4.2",
  "description": "Getting-started router skill for Rayfin - scaffold a new app with the Rayfin CLI, then use the version-locked skill installed in the project."
}

Files

What ships with it

3 files beside gemini-extension.json in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

1mo ago Changed 46456b697ca2
1mo ago Changed 218f305d9d6e
1mo ago First seen · 6 lines scan A e13ec7259d9a

Subscribe to this mod's changes

rayfin is a plugin published in the GitHub repository microsoft/rayfin (653 stars, last pushed 7d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-18.

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