Check Understanding

Test your knowledge of a completed phase from the AI Engineering from Scratch course.

Activation

This skill activates when the user says things like:

• /check-understanding 3 or /check-understanding deep-learning
• "quiz me on phase 2"
• "test phase 1"
• "check my understanding of transformers"
• "do I know phase 3"
• "am I ready for the next phase"

Input

Accepts a phase number (0-19) or a phase name as argument. If no argument is provided, ask the user which phase they want to be tested on by listing all 20 phases.

Phase Map

Map the argument to the correct phase directory under phases/:

Input	Directory	Phase Name
0, setup, tooling	00-setup-and-tooling	Setup & Tooling
1, math, math-foundations	01-math-foundations	Math Foundations
2, ml, ml-fundamentals	02-ml-fundamentals	ML Fundamentals
3, deep-learning, dl	03-deep-learning-core	Deep Learning Core
4, cv, computer-vision, vision	04-computer-vision	Computer Vision
5, nlp	05-nlp-foundations-to-advanced	NLP -- Foundations to Advanced
6, speech, audio	06-speech-and-audio	Speech & Audio
7, transformers	07-transformers-deep-dive	Transformers Deep Dive
8, generative, gen-ai, genai	08-generative-ai	Generative AI
9, rl, reinforcement-learning	09-reinforcement-learning	Reinforcement Learning
10, llms, llm, llms-from-scratch	10-llms-from-scratch	LLMs from Scratch
11, llm-engineering, llm-eng	11-llm-engineering	LLM Engineering
12, multimodal	12-multimodal-ai	Multimodal AI
13, tools, protocols, mcp	13-tools-and-protocols	Tools & Protocols
14, agents, agent-engineering	14-agent-engineering	Agent Engineering
15, autonomous	15-autonomous-systems	Autonomous Systems
16, multi-agent, swarms	16-multi-agent-and-swarms	Multi-Agent & Swarms
17, infrastructure, production, infra	17-infrastructure-and-production	Infrastructure & Production
18, ethics, safety, alignment	18-ethics-safety-alignment	Ethics, Safety & Alignment
19, capstone, projects	19-capstone-projects	Capstone Projects

Procedure

Step 1: Resolve the Phase

Parse the argument. If it is a number, validate it is between 0 and 19 inclusive. If the number is out of range, tell the user: "Phase [N] does not exist. Valid phases are 0-19." and show the full list for them to pick from. If it is a name or keyword, look it up in the Phase Map above. If the keyword does not match any entry in the map, tell the user: "Unknown phase '[keyword]'. Pick from the list below:" and present all 20 phases. If no argument is provided, ask the user to pick from the full list.

Step 2: Read the Phase Content