firebase-game-backend SKILL.md skillA

firebase-game-backend from furkantokkan/agent-foundry is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add furkantokkan/agent-foundry/firebase-game-backend@git:20260907.501dbca

Pins git:20260907.501dbca in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
furkantokkan/agent-foundry
Path
plugins/agent-foundry/skills/firebase-game-backend/SKILL.md
Versions recorded
1
Latest version
git:20260907.501dbca, committed Sep 7, 2026
Size
3,322 bytes
Repository stars
11
License
MIT

Use when building or reviewing Firebase-backed game features for Unity or JavaScript, including Firebase Auth, Cloud Firestore, Realtime Database, Cloud Functions Gen2, Express.js HTTP APIs, Unity request/response clients, Cloud Storage, Remote Config, Analytics, App Check, security rules, local emulators, deployment, data modeling, and client/server boundaries.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Firebase Game Backend

Use this skill for Firebase features that support a Unity game, web dashboard,
companion app, or JavaScript service.

## First Read

Inspect whichever files exist:

- `firebase.json`
- `.firebaserc`
- `firestore.rules`
- `firestore.indexes.json`
- `storage.rules`
- `functions/package.json`
- `functions/src/` or `functions/index.js`
- Web app Firebase config files
- Unity Firebase wrapper code under `Assets/`

## Core Rules

- Client SDKs are untrusted. Security rules and Cloud Functions enforce policy.
- Do not put privileged operations in Unity or browser code.
- Keep Firestore rules restrictive by default.
- Rules are not filters: queries must match the rule constraints.
- Use Firebase Auth UID as the primary ownership boundary.
- Validate writes in security rules and again in trusted server code.
- Use Cloud Functions or another trusted backend for economy mutations,
  anti-cheat-sensitive rewards, purchases, inventory grants, and leaderboards.
- Use Firebase Emulator Suite for rules and function testing when available.
- Keep Firebase code behind interfaces in Unity.
- For this game backend style, prefer Firebase Functions Gen2 with JavaScript
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add furkantokkan/agent-foundry/firebase-game-backend@sha256:17c56d6d152fa2d3

The line at the top of this page pins the label git:20260907.501dbca, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_adi3b6ygtl7loudt.svg)](https://markdownregistry.com/a/art_adi3b6ygtl7loudt)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Sep 7, 2026.

versioncommittedcommitsizeaudit
git:20260907.501dbca latest2026-09-07 501dbca 3,322 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (3322 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

furkantokkan/agent-foundry · 11 stars · license MIT · pushed 2026-10-08 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_adi3b6ygtl7loudt
GET https://markdownregistry.com/api/v1/resolve?ref=furkantokkan/agent-foundry/firebase-game-backend
GET https://markdownregistry.com/api/v1/blob/17c56d6d152fa2d3eb5806ef5e7fc3b942343c0f6561469a5600836093a6798c

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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