firebase-auth

⚠Review·Scanned 2/18/2026

This skill implements Firebase Authentication with client and admin examples, Next.js routes, and templates. It reads/stores credentials via env vars like FIREBASE_PRIVATE_KEY and lists CLI commands (firebase init, firebase emulators:start, firebase auth:export) that instruct shell execution.

by jezweb·v10a1f16·37.8 KB·369 installs
Scanned from main at 10a1f16 · Transparency log ↗
$ vett add jezweb/claude-skills/firebase-authReview findings below

Firebase Authentication Skill

Production-tested skill for implementing Firebase Authentication in web and mobile applications.

Auto-Trigger Keywords

This skill activates when Claude detects these keywords:

Technology Keywords

  • firebase auth, firebase authentication
  • firebase login, firebase sign in, firebase signup
  • firebase user, firebase session
  • firebase-admin auth
  • firebase oauth, firebase social login

Operation Keywords

  • signInWithEmailAndPassword, createUserWithEmailAndPassword
  • signInWithPopup, signInWithRedirect
  • onAuthStateChanged, auth state
  • getIdToken, verifyIdToken
  • firebase session cookie
  • firebase custom claims
  • firebase phone auth, firebase mfa
  • firebase password reset
  • firebase email verification

Provider Keywords

  • firebase google sign in
  • firebase github login
  • firebase facebook auth
  • firebase apple sign in
  • firebase microsoft auth
  • firebase twitter auth

Error Keywords

  • auth/invalid-credential
  • auth/user-not-found
  • auth/wrong-password
  • auth/email-already-in-use
  • auth/popup-closed-by-user
  • auth/popup-blocked
  • auth/requires-recent-login
  • auth/too-many-requests
  • firebase token expired
  • firebase auth cors error

Framework Keywords

  • next.js firebase auth
  • react firebase auth
  • firebase auth middleware
  • firebase protected route
  • firebase auth context

What This Skill Covers

  • Email/password authentication
  • OAuth providers (Google, GitHub, etc.)
  • Phone authentication
  • Multi-factor authentication (MFA)
  • Auth state management
  • Token management and verification
  • Session cookies for SSR
  • Custom claims and roles
  • Protected routes
  • Error handling best practices

When to Use This Skill

Use when:

  • Setting up authentication in a Firebase project
  • Implementing sign-in/sign-up flows
  • Adding social login providers
  • Managing user sessions
  • Protecting API routes and pages
  • Implementing role-based access control
  • Handling authentication errors
  • Migrating to modular SDK (v9+)

Related Skills

  • firebase-firestore - Firebase Firestore database
  • firebase-storage - Firebase Cloud Storage
  • clerk-auth - Alternative: Clerk authentication
  • better-auth - Alternative: Better Auth library