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Lezioni

How LLMs Actually Work: Tokens, Context Windows and the Performance CliffBefore you touch a single tool, you need a working mental model of what a large language model is doing. This lesson explains tokens, context windows and the performance cliff that hits long conversations, so every later decision about models, prompts and agents makes sense.Choosing Your Model: Haiku vs Sonnet vs Opus, GPT, Gemini and BenchmarksThere is no single best model, only the right model for a task and a budget. This lesson maps the 2026 model landscape - Claude Haiku, Sonnet and Opus, OpenAI GPT, Google Gemini - explains how to read benchmarks without being fooled, and shows where to get strong models cheaply through OpenRouter and free Gemini credits.What Is a Harness? Claude Code vs Codex vs Pi vs OpenCodeA model predicts text. A harness turns that text into action: reading files, running commands, editing code, looping until a task is done. This lesson defines the harness clearly and compares the four that matter in 2026 - Claude Code, Codex, Pi and OpenCode - including when the minimal Pi harness genuinely beats the heavyweight option.Installing and Running Claude Code and CodexThis is the hands-on setup lesson. You will install Claude Code and Codex, run your first real agent session, understand the 20, 100 and 200 dollar plans (and why 200 is cheap for a serious builder), and set up the basic guardrails that protect your business and intellectual property from day one.

Corsi

Foundations - From Zero to Your First Shipped AppThe complete starting point. Understand how LLMs and coding agents actually work, install Claude Code and Codex, prompt them like a pro, then scaffold, build and ship a real website to the public internet.Claude Code Mastery - Becoming a Power UserGo deep on Claude Code. Teach it your rules with CLAUDE.md, build reusable skills and commands, automate quality gates with hooks, connect tools with MCP, and run multi-agent workflows without burning context or money.The Modern App Stack - Auth, Data and PaymentsAssemble a real product. Learn how modern apps fit together, add Clerk authentication and Google OAuth, model reactive data in Convex, handle secrets safely, charge customers with Stripe, and migrate from dev to production.Automation and Agentic SystemsBuild automations and agentic tooling. Compare n8n, Zapier and Trigger.dev, automate the browser with Playwright, run code safely in sandboxes, build your own AI tools on top of APIs, and design human-in-the-loop systems.

Risorse

Claude Code Setup ChecklistClaude Code Setup Checklist: a practical, reusable building block for shipping real AI workflows in your business.Codex Workflow TemplateCodex Workflow Template: a practical, reusable building block for shipping real AI workflows in your business.Agent Task BriefAgent Task Brief: a practical, reusable building block for shipping real AI workflows in your business.Spec Sheet TemplateSpec Sheet Template: a practical, reusable building block for shipping real AI workflows in your business.

Conoscenza

How LLMs Actually Work: Tokens, Context and the Performance CliffA plain-language guide to how large language models work: what tokens are, how the context window limits them, and why long prompts get worse, not better.Claude Code for Business: Setup, Workflows and SecurityHow to use Claude Code in a business: installation, safe workflows, project rules with CLAUDE.md and governance. A practical guide for teams and leaders.Choosing an AI Model: Haiku, Sonnet, Opus, GPT and Gemini ComparedHow to choose between Claude Haiku, Sonnet and Opus, OpenAI GPT and Gemini: model tiers, honest benchmarks, pricing and where to get strong models cheaply.Ship Your First App with AI: From Idea to a Live WebsiteA beginner guide to building and shipping a real website with AI: scaffolding, a dev server, Git and GitHub, then deploying to Vercel with a custom domain.

Fondamenti

What Is Node.js (and How to Install It)Node.js is a runtime that lets you run JavaScript outside the browser. Learn what it is, why you need it, and how to install it in a few minutes.Terminal Basics for Total BeginnersThe terminal is a text window where you type commands to control your computer. Learn the handful of commands you actually need to get started.What Is Git? Version Control ExplainedGit is a version control tool that saves snapshots of your project so you can always go back. Learn what it is and the few commands you need.What Is GitHub? A Beginner GuideGitHub is a website that stores your Git projects online so you can back them up, collaborate and deploy. Learn what it is and how to use it.

Costruisce

BizCollect: Building a Business Data Tool API-FirstThe project that taught me AI must love your API, not your UI.s2p: Auto-Posting Every Release to All My ChannelsOne GitHub release, posted everywhere, with zero manual copy-paste.Favicon Maker: A Small Tool That Earned Its KeepA focused logo-to-favicon generator, and a lesson in scope.CodeCourier: Running Untrusted Code Without Getting BurnedExecuting AI-generated code safely, in a sandbox that can blow up.

Glossario

AI AgentAI agent meaning, in plain English: a system that uses a language model to decide and act in a loop toward a goal, calling tools along the way. Clear definition, examples, and how AI agents differ from a chatbot.Agentic AIAgentic AI is AI that acts autonomously toward a goal, planning and using tools across many steps. Definition, how it differs from generative AI, and real examples.Vibe CodingVibe coding is building software by describing what you want in plain language and letting an AI write the code, focusing on the result over the syntax.MCP (Model Context Protocol)MCP (Model Context Protocol) is an open standard that connects AI models to external tools and data through a common interface, often called the USB-C for AI.

Guide

How to Use Claude Code: Complete Beginner Guide (2026)Learn how to use Claude Code from scratch in 2026: install it, start your first session, run the plan-edit-run-review loop, write a CLAUDE.md, and go deeper.Claude Code Subagents Explained (with Examples)What Claude Code subagents are, when to use them, and how to create one in .claude/agents with YAML frontmatter. Built-in subagents, examples and the /agents command.Claude Code Hooks: Automate Your Quality GatesLearn what Claude Code hooks are, every lifecycle event, and how to set them up in settings.json to run lint, tests and format automatically and block bad actions.Claude Code Skills and Slash CommandsHow Claude Code Skills and slash commands work in 2026: create a reusable /command, write a SKILL.md, use arguments and dynamic context, and know when to use each.

Confronti

Claude Code vs Codex CLI (2026 Comparison)Claude Code vs Codex CLI in 2026: an honest comparison of the two leading terminal AI coding agents on autonomy, models, cost, openness and which to pick.Claude Code vs Cursor (2026 Comparison)Claude Code vs Cursor in 2026: an honest comparison of a terminal coding agent and an AI IDE on workflow, models, pricing, autonomy and which one fits you.Best AI Coding Tools in 2026The best AI coding tools in 2026 compared honestly: Claude Code, Cursor, Codex CLI, GitHub Copilot, Windsurf and Aider, with the right pick for each use case.Opus vs Sonnet vs Haiku: Which Claude Model? (2026)Opus vs Sonnet vs Haiku in 2026: how the three Claude models compare on capability, speed and cost per token, and which one to pick for coding and agents.

Strumenti

llms.txt GeneratorGenerate a spec-correct llms.txt file for your site in seconds. Free, client-side, copy or download the result. Plus a plain-language explainer of what llms.txt is.LLM Cost CalculatorFree LLM API cost calculator. Estimate per-call and monthly cost for Claude, GPT and Gemini, compare two models, and model prompt caching and batch savings.Token & Context Window EstimatorFree token counter and context window estimator. Paste text to estimate tokens and see if it fits each model context window for Claude, GPT and Gemini.AI Automation ROI CalculatorFree AI automation ROI calculator. Enter hours, people and cost to see time saved, monthly and annual savings, payback period and first-year ROI in seconds.

Registro delle modifiche

Claude Code Workflow Review, 12 June 2026What is changing in agentic coding workflows and which project rules you should review.Codex Business Workflows, 12 June 2026How to use Codex for reading code, small fixes and structured reviews inside business processes.Convex and Clerk Template, 12 June 2026The auth connection between Clerk and Convex needs clear JWT templates and server-side roles.Model Pricing and Tiers, 12 June 2026Why routing easy work to small models and reserving large models for hard reasoning is the biggest cost lever.

Comunità

Which model tier should I use for simple data extraction?Which model tier should I use for simple data extraction? - with a concrete starting point, the decision made, and the next step.Review: my first Vercel deploy with a custom domainReview: my first Vercel deploy with a custom domain - with a concrete starting point, the decision made, and the next step.Showcase: shipped my first AI-built landing pageShowcase: shipped my first AI-built landing page - with a concrete starting point, the decision made, and the next step.Claude Code update: what power users should checkClaude Code update: what power users should check - with a concrete starting point, the decision made, and the next step.
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