# Authentication

> Cross-domain authentication using the admin login relay pattern, built-in /bffless/auth endpoints, and cookie-based sessions

## Facts
- Page: https://tashan.sh/capability/skill-bffless-authentication
- tashan id: skill:bffless/authentication
- Source: https://github.com/bffless/skills
- Type: skill
- Category: other
- tashan score: 50.0 / 100
- Adoption: 14.0
- Upkeep: 98.0
- Freshness: 95.0
- Evidence coverage: 84% of the inputs this score can use
- Health: active
- Instruction depth: not yet graded
- License: NOASSERTION
- Official: no

## Install

```sh
cp -r authentication ~/.claude/skills/
```

## Security audit
Not scanned. We audit npm-published capabilities; this one has no npm package we can resolve, or has not reached the queue. This is not a clean bill of health.

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Measured 2026-09-12 by tashan (https://tashan.sh) from public evidence. Scorer s5.