Learn Claude Code

From slowto pro withClaude Code.

A guided path from "what's a terminal?" to shipping AI agents, plus quizzes and timed mock exams for the Claude Certified Architect and Claude Developer certifications.

Start learning free → Take a mock exam
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Five levels. One clear path.

Each level builds on the last. Short lessons, everyday analogies, and a quick quiz at the end of every one.

🌱Level 1

Curious

What Claude Code is, how to install it and how to ask for what you want.

🚲Level 2

Getting going

Editing real files safely, steering with modes and undoing mistakes.

🚗Level 3

Daily driver

Memory, context and custom commands that make Claude feel like a teammate.

🏎️Level 4

Power user

Skills, subagents, hooks and MCP: extend Claude Code to fit your workflow.

🚀Level 5

Pro

Automation, the Agent SDK and architecting production-grade agentic systems.

Question of the day

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Exam prep that feels like the real exam.

Scenario-based questions with one right answer and three tempting traps, like the real thing. Every answer comes with an explanation.

Anthropic certification · business users

Claude Certified Associate – Foundations

Use Claude well at work: prompting, checking outputs, choosing tools, workflows, governance and troubleshooting.

Prompting and Task Execution14%
Output Evaluation and Validation21%
Product and Model Selection12%
Workflow Integration and Solution Design16%
Configuration and Knowledge Management12%
Governance, Risk, and Responsible Use15%
Troubleshooting and Optimization10%
Mock examPracticeStudy guide
Anthropic certification · developers

Claude Certified Developer – Foundations

Build on Claude: the API, agents, model choice, prompts and context, tools and MCP, security.

Agents and Workflows14.7%
Applications and Integration33.1%
Claude Code3.1%
Eval, Testing, and Debugging2.6%
Model Selection and Optimization16.8%
Prompt and Context Engineering11%
Security and Safety8.1%
Tools and MCPs10.6%
Mock examPracticeStudy guide
Anthropic certification · architects

Claude Certified Architect – Foundations

Design production systems with Claude: agents, tools, MCP, Claude Code, prompts and reliability.

Agentic Architecture & Orchestration27%
Tool Design & MCP Integration18%
Claude Code Configuration & Workflows20%
Prompt Engineering & Structured Output20%
Context Management & Reliability15%
Mock examPracticeStudy guide
Anthropic certification · senior architects

Claude Certified Architect – Professional

Lead Claude solutions end to end: design, models and context, integration, evaluation, governance and stakeholders.

Solution Design and Architecture17%
Claude Models, Prompting and Context Engineering13%
Integration19%
Evaluation, Testing and Optimization16%
Governance, Safety and Risk Management14%
Stakeholder Communication and Lifecycle Management14%
Developer Productivity and Operational Enablement7%
Mock examPracticeStudy guide
Skills track

Claude Code Skills

Hands-on Claude Code: the CLI, configuration, skills, subagents, hooks, MCP, CI and the API basics.

Claude Code Foundations & CLI25%
Configuration & Memory20%
Extending Claude Code25%
Automation, CI & Agent SDK15%
Claude API Fundamentals15%
Mock examPracticeStudy guide
🎯

Practice mode

Instant feedback and a clear explanation after every answer. Drill a single domain until it clicks.

⏱️

Timed mock exams

Questions weighted by domain, a countdown, flag-for-review, and a score out of 1000 with a domain breakdown.

🃏

Flashcards

Flip through scenarios on your phone on the train. The fastest way to lock in the key decision rules.

Learning, but make it funny.

Every meme hides a real lesson. If you get the joke, you're learning. If you don't yet, the link underneath explains it.

Hooks, not hopes

Power user

Writing "please ALWAYS run the tests" in CLAUDE.md and praying

A PostToolUse hook that runs them every single time

Why hooks beat polite requests →

The galaxy-brain workflow

Beginner

Copy-pasting code from a chatbot

Asking Claude Code to fix it

Plan mode first, then fix it

Subagents reviewing each other while you make a cup of tea

Meet subagents →

This is fine

Getting going

Running --dangerously-skip-permissions on the production server

This is fine.

Permissions, safely →
See all 16 memes →

Questions, answered.

What is Claude Code?

Claude Code is Anthropic's agentic coding tool. You describe what you want in everyday language and it reads your project, edits files, runs commands and tests, and works through multi-step tasks with you. It runs in the terminal, IDEs, a desktop app and the browser.

Do I need to be a developer to learn Claude Code?

No. Level 1 assumes zero coding experience and explains every term as it comes up. Many people start with Claude Code to build internal tools and automations, then grow into more technical work.

How long does it take to go from beginner to pro?

The 19 lessons take about 2.5 hours to read. Most people work through a level a week alongside real projects, so expect four to six weeks to feel confident.

Will this help me pass the Claude Certified Architect exam?

Yes, it is designed to. The Architect practice bank covers all five exam domains with scenario-based questions, a timed mock exam weighted by domain, and explanations for every answer. Use it alongside Anthropic's official materials.

Is it free? Do I need an account?

Everything is free and there is no sign-up. Open any lesson, quiz or mock exam and start straight away.

Learn Claude Code, the C90.

The whole course on one tape. Side A gets you going, Side B makes you dangerous. No pencil needed to rewind.

Want Claude Code working in your business?

Learn Claude Code is made by Tenzing Digital. We build custom AI agents and software for Irish businesses. If you'd rather have experts alongside you than learn it all alone, we'd love to help.

Talk to Tenzing →Training for teamsAbout this site
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Your first lesson takes six minutes.

No account, no credit card, no jargon. Dive in.

Begin Level 1 →