study-os

Korean-first AI study operating system for notes, quizzes, review, and exam planning.

Why this exists

Most AI learning tools stop at chat. Korean learners usually need a full study workflow:

• turn class material into usable notes
• generate quizzes from PDFs and documents
• track mistakes in an error notebook
• schedule spaced review
• plan toward a concrete exam date

study-os is designed as a study operating system, not just an AI tutor.

Core product idea

study-os helps a learner take raw study material and turn it into a repeatable learning loop:

1. ingest material
2. summarize and explain it in Korean
3. generate questions
4. collect mistakes
5. schedule review
6. measure progress toward an exam goal

Target users

Primary

• Korean university students
• certificate exam learners
• developers learning from English technical docs
• self-directed learners with PDFs, handouts, and notes

Secondary

• tutors and teachers preparing practice material
• parents who want lightweight progress visibility

MVP

1. Material ingestion

• upload PDF, markdown, text, and copied lecture notes
• split documents into sections and study units
• preserve source references for each generated output

2. Korean study summary

• explain content in Korean
• generate short summary, key concepts, and likely confusion points
• support tone presets such as:
  • teacher
  • tutor
  • concise exam mode

3. Quiz generation

• multiple choice
• short answer
• fill-in-the-blank
• concept check cards
• generate quizzes directly from selected sections

4. Error notebook

• save wrong answers automatically
• classify mistakes:
  • concept gap
  • careless mistake
  • question misread
  • time pressure
• attach retry questions later

5. Review scheduler

• spaced repetition for concepts and wrong answers
• daily review queue
• overdue review detection
• lightweight streak and completion tracking

6. Exam planner

• choose a target exam or create a custom goal
• set D-day
• break content into weekly and daily plans
• show weak topics and unfinished units

What makes this different

• Korean-first study flow
• focused on exam prep and review loops
• built around PDFs and lecture material, not just free-form chat
• error notebook as a first-class feature
• planner + quiz + review in one workflow

Proposed architecture

Frontend

• Next.js or similar web app
• mobile-friendly dashboard for study and review

Backend

• API server for auth, ingestion, quiz generation, and planning
• job workers for document parsing and background generation

AI layer

• model abstraction for summarization, explanation, and question generation
• Korean prompt presets
• source-grounded generation with citation links

Data layer

• relational DB for users, study units, quizzes, review events
• vector search for semantic retrieval from uploaded materials
• object storage for PDFs and assets

V1 non-goals

• full LMS replacement
• school admin system
• synchronous classroom tools
• generic all-purpose chatbot positioning

Roadmap

Phase 1

• upload document
• create Korean summary
• generate quiz
• save wrong answers
• daily review queue

Phase 2

• exam templates
• progress dashboard
• tutor/teacher mode
• Notion/Obsidian export
• Anki export

Phase 3

• parent mode
• collaborative study groups
• speaking and oral answer evaluation
• personalized curriculum adaptation

Initial repository structure

apps/
  web/
  api/
packages/
  ui/
  prompts/
  core/
  scheduler/
  ingestion/
  quiz-engine/
docs/
  product/
  architecture/
  roadmap/

Initial docs

• product brief
• MVP scope
• roadmap
• user personas
• feature backlog

Contributing

The project is in the planning stage. Early contributions should focus on:

• architecture proposals
• Korean learning UX research
• ingestion and quiz generation prototypes
• review scheduling design