This tutorial provides a comprehensive guide to setting up and using Claude Code, an AI coding agent that allows direct interaction with your codebase.
The Claude Code extension interface within VS Code, showing a more user-friendly chat window.
[
00:09:28
]
Installation: Learn how to install Claude Code on various operating systems (macOS, Linux, Windows) using recommended native installers.
Initial Setup: Configure your theme and choose between a Claude account subscription for fixed costs or an Anthropic API key for pay-as-you-go billing.
IDE Integration: Set up Claude Code within VS Code or Cursor, including installing the VS Code extension for a more user-friendly interface.
Key Commands: Understand essential commands like /terminal setup for new lines, /context to monitor token usage, /clear to reset conversations, and /exit to close Claude Code.
Model and Mode Settings: Discover how to change the AI model (/model) and toggle between thinking mode for better code quality and auto-accept edits mode for faster changes.
Planning Mode: Utilize planning mode to collaboratively design projects with Claude Code, which then generates a detailed implementation plan.
Kanban To-Do App Example: Follow a practical demonstration of building a React-based Kanban to-do list app, from planning to implementation and debugging.
Deep Dive Agents: Learn about using multiple deep dive agents for comprehensive code review and bug identification.
Claude Code is a powerful AI coding agent that allows direct access to your codebase, enabling agents to see projects, execute commands, and implement features without manual copy-pasting.
Claude Code is an AI tool that deeply integrates with your codebase, allowing AI agents to interact directly with your project files to build, debug, and ship software faster. It's beneficial for both novice and experienced developers.
The Claude Code VS Code extension provides a more user-friendly interface than the terminal.
The Claude Code extension interface within VS Code, showing a more user-friendly chat window.
[
00:09:28
]
Installation: Search for "Claude Code" in the VS Code extensions tab and install it.
Interface: The extension opens Claude Code in a dedicated window within VS Code, offering a more visual and easier-to-navigate experience, especially for non-developers.
Commands: Still allows access to slash commands, similar to the terminal version.
The /context command is crucial for monitoring your conversation's token usage and understanding the agent's capabilities.
Token Limit: Each conversation has a 200,000 token limit.
Information Displayed:
Current token utilization percentage.
Tokens used by system prompt, MCP tools, conversation history, and auto-compact buffer.
List of available MCP servers and skills.
Managing Context: Keep the context window lean by implementing small features. If it gets too large, clear the conversation and start fresh to avoid compaction (summarization of conversation history).
Claude Code asks clarifying questions to refine the project plan and then generates a detailed implementation strategy.
Clarifying Questions: Claude asks about front-end framework (React recommended), data persistence (local storage recommended), drag-and-drop functionality, and styling approach (Tailwind recommended). These questions help refine the project scope.
Web Search: Claude may perform web searches to gather necessary information, requiring user permission. This permission can be auto-approved for future requests.
Implementation Plan File: The generated plan is stored in a .claude/plan/ file within your project directory, allowing for future reference.
Detailed implementation plan for the Kanban To-Do App, outlining the tech stack, data model, and core features.
[
00:14:06
]
After reviewing and approving the plan, Claude Code proceeds with code generation and modification.
Approving Plan: Switch to "accept edits mode" (Shift + Tab) and instruct Claude to implement the plan.
To-Do List Tracking: Claude generates a visible to-do list (toggle with Ctrl + T) to track its progress.
Background Tasks: Claude Code can run commands asynchronously in the background (e.g., starting a dev server), allowing the agent to continue working without interruption.
Utilize multiple deep dive agents to conduct thorough code reviews.
Purpose: To identify bugs, gaps, and areas for improvement in the implemented solution.
Execution: Open a new Claude Code session, drag the implementation plan file into the conversation, and instruct Claude to use three deep dive agents to review the implementation for completeness, bugs, and gaps.
A new Claude Code session where the implementation plan file is dragged in to be reviewed by deep dive agents.
[
00:17:24
]
Parallel Processing: Claude spins up multiple agents (e.g., "Review React components," "Review state management," "Review drag-drop features") that run in parallel with their own context windows.
Summary: The main agent synthesizes feedback from the deep dive agents, identifying critical and medium priority bugs and listing what is working well.
Summary of critical and medium-priority bugs identified by deep dive agents, along with working features.
[
00:18:45
]
Bug Fixing: Instruct Claude to "fix all critical bugs," and it will create a new implementation plan specifically for those fixes.
