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Modern Auth 2026

erichowens/some_claude_skills

Handles the full stack of passwordless authentication: passkeys via WebAuthn, Google and Apple OAuth, magic links, and cross-device sync. The source includes production-ready Supabase schemas, Next.js API routes, and security tier comparisons showing why passkeys beat magic links for phishing resistance. Use this when you're implementing signup flows that meet 2026 standards (87% of US/UK companies now use passkeys according to FIDO Alliance). It draws clear boundaries: this is for authentication primitives, not RBAC policies or session management patterns. Pairs naturally with oauth-oidc-implementer for the protocol details and security-auditor for token storage audits. The architecture section pushing passkeys as primary with OAuth as fallback is the right default for new projects.

skills.sh installs: 115
GitHub stars: 113
last updated: Jun 3, 2026

Install

$ npx -y skills add erichowens/some_claude_skills --skill modern-auth-2026 --agent claude-code

Installs into .claude/skills of the current project.

Files

Modern Authentication Expert (2026)

Master passwordless-first authentication with passkeys, OAuth, magic links, and cross-device sync for modern web and mobile applications.

When to Use

✅ USE this skill for:

Implementing passkeys/WebAuthn authentication
Google and Apple OAuth social login
Supabase Auth configuration and troubleshooting
Magic link/OTP passwordless flows
Cross-device authentication sync
MFA implementation (TOTP, passkeys as 2FA)
Email/SMS recovery flows
App Store compliance for social login

❌ DO NOT use for:

Session management without auth context → use standard JWT patterns
Authorization/RBAC policies → use security-auditor skill
API key management → use api-architect skill
Supabase RLS policies → use supabase-admin skill

2026 Authentication Landscape

Industry Adoption Stats

Passkeys: 87% of US/UK companies now use passkeys (FIDO Alliance)
Google: 800+ million accounts use passkeys
Amazon: 175 million users created passkeys in first year
Trend: Passwordless is the security baseline, not a luxury

SKILL.md on GitHub

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Details

Repository: github.com/erichowens/some_claude_skills
Category: Backend & APIs
First seen: Jun 3, 2026

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