new·The score now tells you which way it movedA brain's exam only ever grows: its own material writes questions, and so does every question a real caller asked and did not get answered. The score is a percentage over that growing set, so a brain that learned more could post a smaller number — and this week three did. One of them answered two MORE questions than the week before and showed eighteen points less. Printed as a single percentage, that reads as decline to a reader and as punishment to anyone who contributes material.all news →
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Better Auth

Answer questions about Better Auth as documented today: installation and configuration, every authentication method and its options, the plugin system, database adapters, client APIs for each framework, and the reference — exact option names and defaults, not invented ones.

3,287 notes across 5 brains · updated 2026-08-14 · trained 93%

since last sitting: +92 newly passed — this brain is learning · the verified changelog →

use this brain
# sign in to get a token
$ claude mcp add --transport http mozg \
https://mozg.sh/mcp --header "Authorization: Bearer …"
> use mozg/better-auth — …
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Ask it things like

answers 92/100 on its latest exam
What email-related requirement is mandatory for every user record in Better Auth?User Schema & Database✓
What PostgreSQL client package does the documentation recommend installing for Better Auth?Core Installation & Setup✓
What is the endpoint for email OTP sign-in?Email OTP✓
What options are available for email verification in email and password authentication?Email & Password Authentication✓
What is the endpoint path for changing a user's password?Email & Password Authentication✓
What is the API endpoint for signing in with a magic link?Magic Link Authentication✓
What is the database schema for the organization table?Organization & Team Management✓
What credential provider is required for phone number sign-in?Phone Number Authentication✓

What is inside

asking this brain searches all 4
Better Auth · AuthenticationAnswer questions about Better Auth's authentication methods exactly as documented: email and password, social sign-on and each provider's setup, magic links, passkeys, two-factor, sessions and account linking — with each method's options.525 notes89%Better Auth · ConceptsAnswer questions about Better Auth's concepts: the database schema, sessions, users and accounts, hooks, rate limiting, email delivery and how the pieces fit together.340 notes83%Better Auth · PluginsAnswer questions about Better Auth plugins exactly as documented: every built-in plugin — organization, admin, two-factor, passkey, magic-link and the rest — with its configuration, schema additions and client methods.1067 notes93%Better Auth · ReferenceAnswer questions from the Better Auth reference: the options object with every field and default, the API endpoints and their payloads, error codes, and the CLI commands.244 notes89%

What it can answer

100 coverage checks
93%
Answers 92 of the exam's 100 questionsIt answers 92 questions, 92 more than last time, out of an exam that grew by 100.Nothing it used to answer has stopped working.
▲Social OAuth & OIDC26 / 27
✓Organization & Team Management8 / 8
✓Admin & User Management6 / 6
✓API Key & Bearer Token Authentication6 / 6
✓Email & Password Authentication5 / 5
✓Two-Factor Authentication5 / 5
✓Hooks & Middleware4 / 4
▲Passkey Authentication4 / 5
✓Phone Number Authentication4 / 4
▲Sessions & Cookies4 / 5
✓User Schema & Database4 / 4
✓Error Handling & Troubleshooting3 / 3
✓Magic Link Authentication3 / 3
▲Username & Identifier Management3 / 4
▲Anonymous Authentication2 / 3
▲Core Installation & Setup2 / 4
▲Email OTP2 / 3
✓Internationalization1 / 1
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Attacks survived

re-run weekly · 2026-08-10
✓gate-battery12/12 known hostile payloads caught by the ingest gate
✓injection-corpusevery active note scanned — no steering language
✓secret-corpusevery active note scanned — no keys or credentials

heuristic scans against known attack classes — measured and dated, not a promise of unpoisonability

Inside

  • Email OTP verify current email before change configuration · email otp
  • Email OTP otpLength option · email otp
  • Email OTP sign-in endpoint and parameters · email otp
  • Email OTP verify email endpoint and parameters · email otp
  • Email OTP sendVerificationOTP option · email otp
  • Email OTP change email feature configuration · email otp
  • Email OTP plugin purpose · email otp
  • Email OTP plugin installation steps · email otp
  • Email OTP automatic sign-up behavior · email otp
  • Email OTP sign-in account takeover security · email otp
  • Email OTP change email endpoint and parameters · email otp
  • Email OTP override default email verification · email otp
  • Email OTP reset password endpoint and parameters · email otp
  • Email OTP expiresIn option · email otp

Licence

CC BY-NC-SA 4.0

Use it, copy it, build on it, with credit. Selling it is not allowed.