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soroban-abacus-flashcards/apps/web/.claude/WORKSHEET_GRADING_STATUS.md

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Worksheet Grading System - Current Status

Date: 2025-11-10 Status: ⚠️ INCOMPLETE - DO NOT USE

What Exists

The following files/features were partially implemented but do not work correctly:

Database Tables

  • worksheet_attempts - Stores grading attempts
  • problem_attempts - Stores individual problem results
  • mastery_profiles - Tracks student progress
  • worksheet_settings - User preferences

Status: Tables exist but grading logic is broken

API Routes

  • /api/worksheets/upload - Upload worksheet images
  • /api/worksheets/attempts/[attemptId] - Get grading results

Status: Upload works, grading is broken

Library Files

  • src/lib/ai/gradeWorksheet.ts - OpenAI GPT-5 integration
  • src/lib/grading/processAttempt.ts - Grading orchestration
  • src/lib/grading/updateMasteryProfile.ts - Mastery tracking

Status: Partially implemented, has bugs, incomplete

UI Pages

  • /worksheets/attempts/[attemptId] - View results

Status: UI exists but backend doesn't work

What's Broken

  1. OpenAI Response Parsing - Wrong output index, JSON parsing issues
  2. Streaming Progress - Event parsing bugs, connection issues
  3. Socket.IO Integration - Path configuration, event handling
  4. No Testing Infrastructure - No way to test components independently
  5. No Debug UI - No visibility into what's happening

Why It Failed

Built too much at once without incremental testing.

See WORKSHEET_GRADING_POSTMORTEM.md for detailed analysis.

Next Steps

When ready to tackle this again:

  1. Read WORKSHEET_GRADING_SPEC_V2.md
  2. Start with Phase 1: Build /worksheets/debug/openai-test
  3. Get that working perfectly with user feedback
  4. Only then move to Phase 2

Do not attempt to fix the existing implementation. Start fresh following the new spec.

Files to Reference

  • WORKSHEET_GRADING_POSTMORTEM.md - What went wrong and why
  • WORKSHEET_GRADING_SPEC_V2.md - How to build it correctly next time
  • WORKSHEET_GRADING_STATUS.md - This file (current status)

Migrations to Keep

Migrations 0017-0020 created the worksheet tables. These can stay but the application logic needs to be rebuilt from scratch following the new approach.

Recommendation

Leave the existing code in place but don't use it. When ready to implement:

  1. Build test pages first (in /worksheets/debug/)
  2. Get each piece working independently
  3. Integrate only after all pieces work
  4. Replace the broken production pages

This way we keep the database schema but rebuild the logic correctly.