LaunchKit · 2026

Setup & Installation

npx skills add https://github.com/firebase/agent-skills --skill firebase-auth-basics
or paste the link and ask your coding assistant to install it
https://github.com/firebase/agent-skills/tree/main/skills/firebase-auth-basics
View on GitHub

What This Skill Does

Guides setup and usage of Firebase Authentication, covering sign-in providers like Google, email/password, phone, and anonymous auth. Handles user management, token lifecycle, and security rules for Firestore and Storage.

Saves you from building auth flows, token management, and provider integrations from scratch by wiring up Firebase's built-in identity system through a single config file.

When to use it

  • Adding Google Sign-In to a web app with Firebase
  • Setting up anonymous guest accounts that convert to permanent users later
  • Writing Firestore security rules that check authentication status
  • Configuring email and password auth through the Firebase CLI
  • Managing user sessions and token refresh in a client-side app