Passkey passwordless authentication reference. Synced FIDO2 credentials via iCloud/Google. Covers frontend registration and login code, conditional UI autofill, feature detection, platform support matrix, UX best practices, database schema, and password-to-passkey migration strategy.
Scanned 9/7/2026
Install to Claude Code
Skills Directorynpx -y skills add bytesagain/ai-skills --skill passkey --agent claude-codeInstalls into .claude/skills of the current project.
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---
name: passkey
version: 1.0.0
description: >
Passkey passwordless authentication reference. Synced FIDO2
credentials via iCloud/Google. Covers frontend registration
and login code, conditional UI autofill, feature detection,
platform support matrix, UX best practices, database schema,
and password-to-passkey migration strategy.
author: BytesAgain
homepage: https://bytesagain.com
source: https://github.com/bytesagain/ai-skills
tags: [passkey, fido2, passwordless, authentication, webauthn, security]
---
# Passkey Reference
The future of authentication.
## Commands
| Command | Description |
|---------|-------------|
| `intro` | Overview, providers |
| `implement` | Frontend code, conditional UI |
| `platforms` | Support, UX, migration |
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