Ultimate Claude Code Tutorial: How to Use Claude Code for Beginners in 2026

Summary

The video presents a beginner’s guide to using the Claude Code desktop app to build and modify small, local projects without writing code by hand.

Setup and Basic Workflow

• Download and install the Claude Code app for Mac or Windows, then sign in. The tutorial says the feature requires a paid Claude plan, Pro or higher.
• Select Code → Local and choose a dedicated project folder. Claude can read, edit, and run files in that folder. The presenter recommends creating a separate folder for each project rather than granting access to a general folder such as Desktop or Downloads.
• Check the connection by asking Claude what files are in the project.

Choosing Models and Planning

• The tutorial recommends a two-model workflow: use Opus to analyze a larger task and propose a plan, then switch to Sonnet to implement it. The presenter describes Opus as a slower, deeper planner and Sonnet as a faster, less expensive builder.
• For small, straightforward tasks, skip the planning step and use Sonnet directly.
• Review plans before implementation; changing a plan is easier than revising files after they are built.
• For work involving several files, use Planning mode so Claude can inspect the project and propose changes without immediately editing it.

Projects Demonstrated

1. Podcast landing page: Built from an empty folder. The presenter also demonstrates adding a logo made with an image-generation tool. For visual fixes, attach a screenshot to the chat with a brief request so Claude can inspect it alongside the project files.
2. Chrome quote-saving extension: Saves highlighted text, the page title, and the source link, then displays quotes in a popup with an option to copy them as notes. The tutorial covers loading the extension through Chrome’s developer mode using Load unpacked.
3. Python Downloads-folder organizer: Monitors new files and sorts them into type-based subfolders. It avoids overwriting duplicate filenames by adding a number. Claude can run commands and install packages in the app; the presenter recommends reviewing command approvals, especially for actions that delete, overwrite, or publish data.
4. Single-file subscription tracker: A browser-based HTML app for recording services, prices, and renewal dates. It displays monthly and upcoming-payment information, with example follow-up changes for highlighting subscriptions due within seven days and showing annual costs. Data remains in that browser on that computer; opening the file elsewhere starts with an empty list.

Editing Safely and Debugging

• Before requesting changes to unfamiliar code, ask Claude to explain the relevant part.
• Make edit requests specific: describe what the code currently does, what should change, and what must remain unchanged. Review the diff before approving changes.
• When debugging, provide the complete error message and describe when it occurs. Check Claude’s proposed correction in the diff.
• Stop a running command if something looks wrong. The presenter suggests quickly approving familiar, low-risk actions such as tests, while scrutinizing actions that could cause harder-to-reverse changes.

Persistent Project Rules and Larger Tasks

• A root-level claude.md file can hold project instructions that Claude reads in later sessions. The video suggests starting with init to draft the file, then adding concise rules such as coding-language preferences, naming conventions, and whether libraries may be added.
• For a larger task, write a clear specification covering the goal, constraints, completion criteria, and things not to add. Claude can then build the requested features in sequence; review and test the stated criteria afterward.
• New Projects, described as a beta feature, can run multiple tasks in parallel in separate cloud threads. The presenter cautions that each result still needs to be checked.

Session Management, Limits, and Cautions

• Use compact during a long session to summarize important decisions and reduce accumulated context.
• If two repair attempts fail, the presenter recommends starting a new session with a concise description, the full error or symptom, and the relevant file. The claude.md rules remain available.
• The video cautions that Claude Code is not a replacement for experienced engineering teams on high-stakes systems such as banking backends or medical platforms.
• The video discusses Claude’s paid plans and API token billing. It advises beginners to start with a plan and consider API usage only after understanding their consumption.
• Keep command approval visible at first rather than enabling automatic execution immediately.

Promotional Content

The presenter promotes AI Master, describing it as a platform offering multiple AI models and tools for image, audio, and video generation, along with AI-agent workflows and educational material. This is promotional content rather than part of the Claude Code tutorial.

Main Speaker and Sources

• Main speaker: The video’s presenter from the AI Master channel.
• Tools and services discussed: Claude Code, Chrome, Python, and the AI Master platform.