better-auth

name	better-auth
description	Better-Auth library integration for authentication with social providers, sessions, RBAC, and organization management
layer	domain
category	security
triggers	["better-auth","better auth","betterauth"]
inputs	["application framework","auth requirements","database adapter","social providers"]
outputs	["auth configuration","client setup","middleware","protected routes","plugin configuration"]
linksTo	["authentication","nextjs","drizzle","prisma"]
linkedFrom	["authentication","code-review"]
preferredNextSkills	["authentication","owasp","nextjs"]
fallbackSkills	["authentication"]
riskLevel	medium
memoryReadPolicy	selective
memoryWritePolicy	none
sideEffects	["database migrations","session creation"]

Better-Auth Specialist

Purpose

Integrate Better-Auth as the authentication solution for web applications. This skill covers server and client configuration, social providers, session management, email/password auth, RBAC, organization/team support, two-factor authentication, and database adapter setup.

Key Patterns

Server Configuration

// lib/auth.ts
import { betterAuth } from "better-auth";
import { drizzleAdapter } from "better-auth/adapters/drizzle";
import { twoFactor } from "better-auth/plugins/two-factor";
import { organization } from "better-auth/plugins/organization";
import { admin } from "better-auth/plugins/admin";
import { db } from "@/db";

export const auth = betterAuth({
  database: drizzleAdapter(db, {
    provider: "pg", // or "mysql", "sqlite"
  }),

  emailAndPassword: {
    enabled: true,
    minPasswordLength: 8,
    maxPasswordLength: 128,
    autoSignIn: true,
    requireEmailVerification: true,
    sendResetPassword: async ({ user, url }) => {
      await sendEmail({
        to: user.,
        : ,
        : ,
      });
    },
  },

  : {
    : {
      : process..!,
      : process..!,
    },
    : {
      : process..!,
      : process..!,
    },
  },

  : {
    : {
      : ,
      :  * , 
    },
    :  *  *  * , 
    :  *  * , 
  },

  : [
    ({
      : ,
      : {
        : ,
        : ,
      },
    }),
    ({
      : ,
    }),
    (),
  ],

  : [process..!],

  : {
    :  crypto.(),
  },
});

   =  auth..;