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A curated walkthrough of the library — ordered lessons, a 15-question quiz between each, and 3 next-steps so you stay in flow. Earn XP, badges, and a streak as you go.
Library · 6440 lessons · Coder view
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Lessons handpicked for the Coder shelf.
AI-assisted coding is not magic and not cheating. It is a new way of working where a model drafts, you decide. Let's draw a map before we start building.
Let's actually feel what autocomplete is like. Write a comment, pause, and watch a full function appear. Then learn what to do next.
A prompt that writes a poem is not the same as a prompt that ships working code. Code has hidden standards. You need to make them explicit.
The AI will hand you code that looks right but isn't. Here are the most common bugs and the habits that catch them before they bite.
Fresh Coder lessons added to the library.
AI writes Java for you faster than your teacher can say 'Scanner'. Using it without cheating yourself out of the class is the real skill.
Red-teamers try to make models misbehave before bad actors do. Here is how the job works, who does it, and what they look for.
A research preview posted on a Wednesday became the fastest-growing consumer product in history.
The imitation game became famous, but most AI researchers now think it measures the wrong thing.
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AI-assisted coding is not magic and not cheating. It is a new way of working where a model drafts, you decide. Let's draw a map before we start building.
Let's actually feel what autocomplete is like. Write a comment, pause, and watch a full function appear. Then learn what to do next.
A prompt that writes a poem is not the same as a prompt that ships working code. Code has hidden standards. You need to make them explicit.
The AI will hand you code that looks right but isn't. Here are the most common bugs and the habits that catch them before they bite.
Bugs are where AI is most useful and most humbling. Paste errors, ask for causes, run experiments, and learn how to get a real answer instead of a guess.
Writing a test first is not just good engineering. It is the clearest possible prompt for an AI. Let's use tests to make AI code reliable.
Most of a developer's life is reading code someone else wrote. AI is astonishing at this. Here's how to get fast, honest explanations of unfamiliar code.
Refactoring means changing code without changing behavior. That used to be scary. With tests and AI together, it becomes routine.
Time to get hands on. Install a real AI coding editor, sign in, and write your first line together. No credit card required to start.
Git is a time machine for your code. Before we ship anything, let's learn the three commands that matter and what they actually do under the hood.
Let's make something real. A single-page site with HTML, CSS, and a little interactivity. You plan, the AI drafts, you review and ship.
Bring it all together. Pick one of three starter projects, plan it, build it with AI, and deploy it. You are now a builder who ships.
Variables are named boxes for data. You'll write your first ten, then use AI to decode error messages and grow your intuition for types.
If-statements and loops are where programs come alive. You'll write both kinds, then see where AI autocomplete helps and where it lies.
A function is a reusable chunk of code with a name. You'll write three, add type hints, and let AI suggest better names and docstrings.
Lists are ordered rows; dicts are labeled lookups. You'll use both to solve a real problem, and catch the mistakes autocomplete makes.
A CLI quiz app: Claude generates questions on any topic, you answer, it grades. Teaches prompts, loops, and keeping state.
Variables, loops, and functions are the atoms of Python. Let an AI help you write them while you learn what each line actually does.
Lists hold ordered items. Dicts hold keyed pairs. Comprehensions make both sing. Learn the core patterns AI will push you toward.
Reading and writing files is where real scripts start. Learn the with-statement, path handling, and JSON round-trips.
TypeScript is JavaScript with types. Learn how `strict` mode catches bugs at compile time and how AI writes cleaner types than you might alone.
SELECT, WHERE, JOIN, GROUP BY. Four keywords run the data world. AI is excellent at SQL because it has read every StackOverflow answer ever.
The terminal is where real work happens. Pipes, variables, and loops in bash are a superpower — and AI is surprisingly good at shell one-liners.
v0 by Vercel turns a prompt, screenshot, or Figma file into a working Next.js app deployed in one click.
Your posts, chats, photos, and behavior have been scraped, sold, and fed to models. Here is what has actually happened and what you can actually do.
A transformer processes a token through many layers before outputting a prediction. The logit lens shows you what the model would predict if it stopped at each layer along the way.
Red-teamers try to make models misbehave before bad actors do. Here is how the job works, who does it, and what they look for.
You cannot understand modern AI without understanding its diet. Let's map where the data comes from, how it gets cleaned, and what that means.
Artifacts is Claude's canvas. Charts, code, docs, and interactive React components render live next to the chat.
Every coder uses AI now. The skill is learning to code WITH AI from day one, not letting AI code for you.
Stats is 10 percent concepts and 90 percent careful arithmetic. AI is shockingly good at the arithmetic, which frees you to actually think about the concepts.
Benchmarks are how AI progress gets measured. Understanding them is the first step in reading any AI claim.
When you change a prompt, how do you know the new version is actually better? A/B testing is the honest answer.
Stable Diffusion, Midjourney, and DALL-E all trace back to LAION, an open dataset of 5 billion image-text pairs. It changed AI, and started a legal storm.
The imitation game became famous, but most AI researchers now think it measures the wrong thing.
Midjourney is the artist favorite. FLUX.2 Pro is the API-native challenger. Here is which one to pick depending on what you are making.