How to use the Check Understanding quiz agent skill

What the skill makes your agent do

An agent skill is a set of instructions, stored in a SKILL.md file, that tells an AI agent how to handle a specific task. This one turns your agent into a quiz master for the AI Engineering from Scratch course.

You choose a phase from 0 to 19. The agent reads that phase's lesson material, writes 8 multiple-choice questions based on it, and asks them one by one. At the end it gives you a score and points you back to the lessons behind any questions you missed.

• Questions 1-4 test concepts and reasoning (what and why).
• Questions 5-8 test applied knowledge (how and build).
• Each question has four options, A to D, with one correct answer.
• Because the questions come from the course files, they match what you studied.

How do you install the Check Understanding skill?

Download the ZIP file for this skill from this page. Then install it using one of the two methods below.

For Claude Code, unzip the file into your personal skills folder at ~/.claude/skills/, or into a project's .claude/skills/ folder if you want the skill available only in that project.

In the Claude apps, upload the skill under Settings → Capabilities → Skills.

• Personal install: unzip into ~/.claude/skills/
• Project install: unzip into .claude/skills/ inside your project
• Claude apps: Settings → Capabilities → Skills, then upload

How do you start a quiz with a natural request?

You do not need a special command. The skill activates on phrases such as 'quiz me on phase 2', 'test phase 1', 'do I know phase 3', 'check my understanding of transformers', and 'am I ready for the next phase'.

You can also use the slash form with a phase number or a phase name. A phase name such as deep-learning or transformers works as well as a number.

• 'quiz me on phase 2'
• 'test phase 1'
• 'do I know phase 3'
• 'check my understanding of transformers'
• 'am I ready for the next phase'

Which phases can you choose and how do you name them?

The course has 20 phases, numbered 0 to 19. You can type the number or a keyword from the phase map. For example, 0, setup or tooling all select Setup & Tooling, and 14, agents or agent-engineering all select Agent Engineering.

If you give no phase, the agent lists all 20 phases and asks you to pick one. If you give a number outside 0-19, or a keyword that does not match, the agent says so and shows the full list.

• 0, setup, tooling: Setup & Tooling
• 3, deep-learning, dl: Deep Learning Core
• 7, transformers: Transformers Deep Dive
• 10, llms, llm: LLMs from Scratch
• 18, ethics, safety, alignment: Ethics, Safety & Alignment

How does a quiz session work?

The agent asks one question at a time and waits for your reply before moving on. Each question shows which lesson it comes from. Reply with a single letter for the option you choose.

After all 8 questions, you get a grade based on your score. The grades are Mastered for 7-8 correct, Almost for 5-6, Developing for 3-4, and Start Over for 0-2. For each wrong answer, the agent shows your answer, the correct answer, a short explanation and the lesson file to review. At the end you can retake the quiz, try another phase, or ask for an explanation of a topic you missed.

• Score 7-8: Mastered
• Score 5-6: Almost, with specific lessons to review
• Score 3-4: Developing, with each missed question and its lesson
• Score 0-2: Start Over, with all missed topics listed

What does the skill need, and what should you know about safety?

The skill needs an agent that supports SKILL.md skills and interactive prompts. It also needs the course content. You can either have the course repository cloned on your computer, or allow the agent internet access so it can fetch the course README and lesson files from GitHub.

This skill does not run scripts. It does use the network when the course repository is not cloned, because it then reads files from GitHub.

• Requires: the course repository cloned locally, or internet access to read the README and lesson files from GitHub
• Requires: an agent that supports SKILL.md skills and interactive prompts
• Runs scripts: no
• Uses network: yes

Tips for getting the most from the quiz

Take the quiz soon after you finish a phase, while the material is fresh. When you get a question wrong, open the lesson file the agent points you to before you retake the quiz.

Use the retake option to practise again. The skill avoids repeating questions until its pool runs out, and then it rephrases them. Treat a result as a self-check, not a formal assessment.

• Use a local clone of the course so the agent reads lesson files directly.
• Review the named lessons for each missed question.
• Use the Explain a topic option for any concept you find unclear.