Auth Personalization Skill

Instructions

1. •

   Auth plumbing

   • •Install Better Auth client/server SDKs
   • •Configure redirect URIs and cookie/CSRF settings
   • •In FastAPI, add auth dependency to protect endpoints
   • •Verify tokens server-side
2. •

   Data model

   • •Neon tables:
     • •users(id, email, name, role)
     • •preferences(user_id, difficulty, focus_tags, lang)
   • •Reuse sessions table if present from RAG service
3. •

   UX

   • •Docusaurus: add login/logout buttons
   • •Display session state in header
   • •Guard personalization features behind login
   • •Provide preferences UI (dropdowns/tags) saved via backend
4. •

   Personalization logic

   • •Pass user prefs into RAG prompt context:
     • •difficulty → adjust answer tone
     • •focus_tags → rerank payload
   • •Store last chapters read for resume suggestions

Examples

// Better Auth client setup
import { createAuthClient } from "better-auth/client";

export const authClient = createAuthClient({
  baseURL: process.env.NEXT_PUBLIC_API_URL,
});

# FastAPI auth dependency
from fastapi import Depends, HTTPException

async def get_current_user(token: str = Depends(oauth2_scheme)):
    # Verify Better Auth token
    # Return user or raise 401
    pass

Definition of Done

• •Users can sign up/sign in via Better Auth; session recognized by backend
• •Preferences persisted in Neon; API to update/fetch works
• •RAG responses reflect preferences (tone/focus) when provided
• •Basic UI for login + prefs exists in Docusaurus