Mastery Test

AI-powered study ecosystem for Claude Code.

Transforms lecture recordings into exam-ready learning materials through a multi-skill pipeline.

What It Does

Cerebro processes your lecture materials (video recordings, transcripts, slides, PDFs) and produces:

• Flashcards — Anki-ready TSV files. One card = one idea: the Front is a clear question, the Back is a compact 1-2 sentence explanation, and slide figures are cropped and embedded in the Front.
• Interactive Mindmaps — Dark-mode HTML files where every flashcard is visible as a Front → Back node pair. Category nodes show context tooltips on hover explaining concept relationships.
• Coverage Analysis — Compares generated flashcards against source materials, identifies gaps, and produces supplementary cards automatically.
• Study Guides — Comprehensive before-starting reports with concept architecture, exam relevance analysis, difficulty forecasts, and study strategies.
• Mastery Testing — Interactive conversational tests that adapt to your responses and identify weak spots.
• Essay Scaffolding — Skeleton answers for essay-format exams with word budgets, required points, and common mistakes to avoid.

How It Works

Cerebro uses a **discovery-based agent architecture**. The tutor agent scans your `courses/` and `skills/` directories dynamically — no hardcoded course names or paths. Add a course folder and a matching flashcard skill, and the system picks it up automatically.

The Pipeline

When new lecture materials arrive, the `lecture-ingest` pipeline runs 6 steps:

Video/Transcript → Whisper Transcription (skipped if transcript exists)
       ↓
    Lecture Summary (comprehensive narrative overview)
       ↓
    Flashcard Generation (course-specific skill, question-front architecture)
       ↓
    Coverage Analysis (gap detection + supplementary cards)
       ↓
    Mindmap Generation (interactive HTML with context tooltips)
       ↓
    Before-Starting Report (exam analysis, difficulty forecast, study strategy)

Each step's output feeds the next. The before-starting report is generated last because it needs full knowledge of the final card set.

Setup

Prerequisites

• Claude Code CLI installed
• Python 3.10+
• Anki with custom note types (see Card Types below)

Installation

git clone https://github.com/serbestonline/Cerebro.git
cd Cerebro
pip install -r requirements.txt
chmod +x setup.sh && ./setup.sh

Dependencies

Package	Purpose	Required?
openai-whisper	Transcribe lecture video recordings to text	Only if you have video files without transcripts
PyMuPDF	Extract images and render PDF pages	Optional — for future image extraction features

If you already have lecture transcripts (`.txt` files), Whisper is not needed — the pipeline skips transcription when a transcript exists.

Whisper Setup Notes

Whisper requires `ffmpeg`:

# macOS
brew install ffmpeg

# Ubuntu/Debian
sudo apt install ffmpeg

The pipeline uses Whisper's `small` model by default:

whisper "lecture.m4v" --model small --language en --output_format txt --condition_on_previous_text False --fp16 False

You can use a larger model (`medium`, `large`) for better accuracy at the cost of speed. Change the model in `skills/lecture-ingest.md` if needed.

Directory Structure

Cerebro/
├── AGENT.md                          # Tutor agent — orchestrates everything
├── README.md
├── .gitignore
│
├── skills/                           # Core skills
│   ├── flashcard-generator.md        # Central rules: card architecture, types, tags, TSV
│   ├── slide-figure-extractor.md     # Crop PDF figures into card Fronts
│   ├── lecture-ingest.md             # 6-step processing pipeline
│   ├── lecture-summary.md            # Summaries + before-starting reports
│   ├── flashcard-coverage-checker.md # Gap analysis + supplementary cards
│   ├── mindmap-generator.md          # Interactive HTML mindmaps
│   ├── lecture-mastery-tester.md     # Conversational mastery testing
│   ├── essay-scaffolder.md           # Essay skeleton answers
│   ├── weak-spot-hunter.md           # Anki performance analysis
│   └── flashcard-generators/         # Course-specific skills
│       └── (your course skills here)
│
├── assets/                           # Reference files
│   └── mindmap_reference.html        # Working mindmap example
│
├── .claude/
│   └── commands/                     # Slash commands (symlinks to skills)
│       ├── lecture-ingest.md
│       ├── lecture-summary.md
│       ├── flashcard-coverage.md
│       ├── mindmap.md
│       ├── mastery-test.md
│       ├── essay-scaffold.md
│       └── weak-spots.md
│
└── courses/                          # YOUR course folders (gitignored)
    └── (your courses here)

Setting Up Slash Commands

The `.claude/commands/` directory contains symlinks to skill files. If you cloned the repo, the symlinks may be broken. Recreate them:

cd Cerebro
mkdir -p .claude/commands
ln -sf ../../skills/lecture-ingest.md .claude/commands/lecture-ingest.md
ln -sf ../../skills/lecture-summary.md .claude/commands/lecture-summary.md
ln -sf ../../skills/flashcard-coverage-checker.md .claude/commands/flashcard-coverage.md
ln -sf ../../skills/mindmap-generator.md .claude/commands/mindmap.md
ln -sf ../../skills/lecture-mastery-tester.md .claude/commands/mastery-test.md
ln -sf ../../skills/essay-scaffolder.md .claude/commands/essay-scaffold.md
ln -sf ../../skills/weak-spot-hunter.md .claude/commands/weak-spots.md

Or run the setup script:

chmod +x setup.sh && ./setup.sh

After setup, open Claude Code in the Cerebro directory. Type `/` to see available commands.

**Note:** These are project-level commands — they only appear when Claude Code's working directory is inside the Cerebro folder. They do not pollute your global commands.

Adding Your Courses

1. Create a folder under courses/:

courses/
└── My Course Name/
    └── 01.01.26 - Lecture 1/
        ├── lecture_video.m4v        # or .mp4, .mov
        ├── lecture_slides.pdf
        └── reading_material.pdf     # optional

1. Create a course-specific flashcard skill in skills/flashcard-generators/:

---
name: my-course-flashcards
description: Generate Anki flashcards from [Course Name] lecture materials. [Brief description of what makes this course unique.]
inherits: ../flashcard-generator.md
---

# My Course Flashcards

**Course:** [Full course name]
**Deck:** User selects during Anki import — do not hardcode in TSV

## Exam Format
[Describe the exam: MCQ? Essay? Definitions? How many questions? Word limits?]

## Input Materials
[What files does this course provide? PDF slides? RMD files? PPTX?]

## Card Types for This Course
[Which card types are emphasized? Any course-specific card rules?]

## Coverage Verification
[What must be checked before finalizing output?]

1. The agent discovers the new course automatically. Run the pipeline:

/lecture-ingest

Output Per Lecture

After processing, each lecture folder contains:

01.01.26 - Lecture 1/
├── lecture_video.m4v                    # original (untouched)
├── lecture_video.txt                    # whisper transcript
├── lecture_slides.pdf                   # original (untouched)
├── lecture_summary.md                   # comprehensive summary
└── Flashcards/
    ├── flashcards.tsv                   # main flashcard deck
    ├── flashcards_supplementary.tsv     # gap-filling cards (if needed)
    ├── flashcard_mindmap.html           # interactive mindmap
    └── before_starting_report.md        # study guide

Card Types

Cerebro uses custom Anki note types:

Type	Fields	Use Case
Cerebro Basic	Front, Back, Context, Image	Standard Q&A — definitions, mechanisms, comparisons
Cerebro Cloze	Text, Context, Image	Fill-in-the-blank — terms, dates, formulas
Cerebro Type	Front, Back, Context, Code, Image	Type-your-answer — active recall
Cerebro Type Code	Front, Back, Context, Code, Image	Type code — IDE-style interface for programming courses

Card templates (HTML front, back, styling, and field definitions) are in `assets/card-templates/`. To set up in Anki:

1. Create a new note type in Anki (Tools → Manage Note Types → Add)
2. Name it exactly as shown (e.g., Cerebro Basic)
3. Add the fields listed in the corresponding *-fields.html file
4. Paste the front template from *-front.html, back from *-back.html, and styling from *-styling.html
5. Repeat for each card type you need

Key Design Principles

**Card architecture:** Every card tests exactly one idea. The Front is a clear, self-contained question — never a topic label or a statement containing its own answer. The Back is a compact 1-2 sentence explanation (~20-35 words) giving the answer plus the mechanism. Context stays empty unless there is genuine extra material. Where the lecture ships slides, the figure is cropped to its own bounds and embedded in the Front.

**Cloze Overview Pattern:** Lists of 3+ items always produce a Cloze Overview card (big picture with gaps) PLUS individual Basic cards for each item.

**3-Tier Tagging:**

• Tier 1 (Domain): Cross-course themes — memory, attention, statistics
• Tier 2 (Week): Week-1, Week-2, etc.
• Tier 3 (Concept): Specific concept — dualism, t-test, prosopagnosia

Slash Commands

When working in the Cerebro directory with Claude Code, these commands are available:

Command	What It Does
/lecture-ingest	Run the full 6-step pipeline on a lecture
/lecture-summary	Generate lecture summary + study guide
/flashcard-coverage	Analyze coverage gaps + generate supplementary cards
/mindmap	Generate interactive flashcard mindmap
/mastery-test	Interactive conversational mastery test
/essay-scaffold	Generate essay skeleton answers
/weak-spots	Analyze Anki review data for weak areas

Example Skills

The repo includes 4 example course-specific skills in `skills/flashcard-generators/`:

Skill	Course Type	Exam Format	Key Feature
clinical-neuro-flashcards.md	Clinical Neuropsychology	Essay + definitions	Glossary extraction, practice essay questions
compneuro-flashcards.md	Computational Neuroscience	MCQ only	MCQ generation (20-25/lecture), when-to-use cards
affective-neuro-flashcards.md	Affective Neuroscience	Scenario-based	Brain region ↔ function mapping, scenario practice
r-programming-flashcards.md	Statistics / R Programming	Mixed	Dual-layer input (RMD + PPTX), Cerebro Type Code 70-85%

These serve as templates. Copy one that matches your course type and adapt it.

Mindmap Preview

Open `assets/mindmap_reference.html` in a browser to see the interactive mindmap format:

• Dark mode interface
• Every flashcard visible as Front → Back nodes
• Category nodes show CONTEXT tooltips on hover
• Click to expand/collapse branches
• Color-coded theme branches

Contributing

1. Fork the repo
2. Add your course-specific flashcard skill
3. Test it with real lecture materials
4. Submit a PR with the skill file (no course data)

License

MIT