Summary
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.
Install to Claude Code
npx -y skills add erichowens/some_claude_skills --skill modern-auth-2026 --agent claude-codeInstalls into .claude/skills of the current project.
Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →
Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →
Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →
Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →
Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →
belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
Files
SKILL.md
Select a file.
Featured
Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
