Agent skill · marketing growth · aiskillstore
firebase-auth-basics
Guide for setting up and using Firebase Authentication. Use this skill when the user's app requires user sign-in, user management, or secure data access using auth rules.
Why this skill is useful
Provides detailed domain-specific knowledge on setting up Firebase Authentication, including configuration and security rules that the AI wouldn't reliably generate on its own.
What it needs
Requires firebase-tools installed locally. Requires firebase account access. About 2k tokens when loaded. Last updated 2026-08-07. 405 stars on the source repository.
What this skill does
Prerequisites Firebase Project: Created via npx -y firebase-tools@latest projects:create (see firebase-basics). Firebase CLI: Installed and logged in (see firebase-basics). Core Concepts Firebase Authentication provides backend services, easy-to-use SDKs, and ready-made UI libraries to authenticate users to your app. Users A user is an entity that can sign in to your app. Each user is identified by a unique ID (uid) which is guaranteed to be unique across all providers. User properties include: uid: Unique identifier. email: User's email address (if available). displayName: User's display name (if available). photoURL: URL to user's photo (if available). emailVerified: Boolean indicating if the email is verified. Identity Providers Firebase Auth supports multiple ways to sign in: Email/Password: Basic email and password authentication. Federated Identity Providers: Google, Facebook, Twitter, GitHub, Microsoft, Apple, etc. Phone Number: SMS-based authentication. Anonymous: Temporary guest accounts that can be linked to permanent accounts later. Custom Auth: Integrate with your existing auth system. Google Sign In is recommended as a good and secure default provider. Tokens When a user signs in, they receive an ID Token (JWT). This token is used to identify the user when making requests to Firebase services (Realtime Database, Cloud Storage, Firestore) or your own backend. ID Token: Short-lived (1 hour), verifies identity. Refresh Token: Long-lived, used to get new ID tokens. Workflow 1. Provisioning Option 1. Enabling Authentication via CLI Only Google Sign In, anonymous auth, and email/password auth can be enabled via CLI. For other providers, use the Firebase Console. Configure Firebase Authentication in firebase.json by adding an 'auth' block: Option 2. Enabling Authentication in Console Enable other providers in the Firebase Console. 1. Go to the https://console.firebase.google.com/project//authentication/providers 2. Select your project. 3. …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills aiskillstore/firebase-auth-basics