About this skill
Implementing the relying-party (server) side of WebAuthn / passkeys to replace passwords — the registration ceremony, the authentication ceremony, the verification steps the server MUST perform on each (challenge match, origin match, RP ID hash, signature, counter monotonicity), conditional UI for autofill, and the synced-vs-device-bound distinction. Grounded in W3C WebAuthn-3, FIDO Alliance, passkeys.dev, and SimpleWebAuthn.
Quick start
- Copy the install prompt. Use the green button above this README.
- Send it to your agent. Paste it into your coding agent’s chat and send.
- Review the setup. Your agent checks the skill’s instructions, requirements, and installation scope.
Review, license & listing details
This is an imported listing. We haven’t certified its safety, license, or compatibility. Skills may include executable scripts.
Only SKILL.md was scanned. Supporting files and scripts were not checked. No safety grade has been assigned.
0 potential findings · Scanned 11/4/2026 · Scanner 0.2.1
Content SHA-256: 03b494618e5523eaa0e9dbecf61914a07f436684d3234e7f6163a0e866b1b3c2
About this listing
- Category
- General
- Reported license
- Not specified
- Listing language (estimated)
- English
- Review status
- Not individually reviewed
- Agent compatibility
- Atlas installation supports Claude Code, Codex, and Cursor. Skill-specific dependencies and features are checked during setup.