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$ skillbazaar install --tag authentication --agent claudeSign in (free) to install skills with the CLI.
$ skillbazaar install --tag authentication --agent claudeSign in (free) to install skills with the CLI.
Use when setting up, troubleshooting, managing, removing, or checking the health of an Auth0 custom authentication domain (e.g. login.example.com), OR when diagnosing an error (400/403/404/409/429) from the /custom-domains Management API — especially Free-tier 403s (credit card on file, not a plan upgrade), self-managed cert 403s, PATCH-type 400s, `operation_not_supported` on `relying_party_identifier`, and 409 domain-already-exists. Handles CNAME creation in the user's DNS provider (Cloudflare, AWS Route 53, Azure DNS automated; other registrars guided), verification polling, Multiple Custom Domains (MCD), default-domain selection, TLS policy, client-IP header, per-domain passkey relying party identifier, and domain metadata.
Use when adding authentication to Expo (React Native) mobile apps — login, logout, user sessions, protected routes, biometrics, or token management. Integrates react-native-auth0 SDK with Expo Config Plugin for native iOS/Android builds. Trigger for any Expo project needing Auth0, including app.json plugin config, custom scheme setup, or credential management. Do NOT use for bare React Native CLI projects (use auth0-react-native), React web apps (use auth0-react), Next.js (use auth0-nextjs), or backend APIs.
Use when adding authentication (login, logout, protected routes) to Fastify web applications - integrates @auth0/auth0-fastify for session-based auth. For stateless Fastify APIs use auth0-fastify-api instead.
Use when adding login, logout, and user profile to a Flask web application using session-based authentication - integrates auth0-server-python for server-rendered apps with login/callback/profile/logout flows.
Use when adding Auth0 authentication to a Flutter mobile application (iOS/Android) — integrates the auth0_flutter SDK (native platform) for Web Auth login/logout via the system browser, with secure credential storage and biometric protection through the CredentialsManager.
Use when adding Auth0 authentication to a Flutter web application — integrates the auth0_flutter SDK (web platform) for browser-based authentication using redirect login, popup login, and credential caching.
Use when adding Auth0 authentication to an Ionic Angular application with Capacitor — integrates @auth0/auth0-angular SDK with Capacitor Browser and App plugins for native iOS/Android deep linking, login, logout, and user profile display.
Use when adding Auth0 authentication to an Ionic Vue application with Capacitor — integrates @auth0/auth0-vue SDK with Capacitor Browser and App plugins for native iOS/Android deep linking, login, logout, and user profile display.
Use when adding Auth0 login, logout, and callback handling to Java Servlet web applications - integrates com.auth0:mvc-auth-commons SDK for server-side Java apps using javax.servlet with session-based authentication. Triggers on AuthenticationController, AuthorizeUrl, Tokens, IdentityVerificationException, Java MVC auth.
Use when adding login, logout, and user profile to a Laravel web application using session-based authentication - integrates auth0/login (laravel-auth0) for guard-based auth with auto-registered routes.
Use when adding Auth0 authentication to .NET MAUI cross-platform applications (iOS, Android, macOS, Windows) - integrates Auth0.OidcClient.MAUI NuGet package for native login, logout, token refresh, and user profile. Trigger on MAUI authentication, add login to MAUI, Auth0 MAUI, .NET MAUI auth, cross-platform mobile auth
Use when adding MFA, 2FA, TOTP, SMS codes, push notifications, passkeys, or when requiring step-up verification for sensitive operations or meeting compliance requirements (HIPAA, PCI-DSS) - covers adaptive and risk-based authentication with Auth0.