How to Set Up Claude Code in 2026 (Beginner Tutorial)

Claude Code is an innovative AI tool empowering agents to directly access and modify your codebase, eliminating manual copy-pasting. It accelerates development for "vibe coders" and experienced developers alike, granting AI agents full project visibility, command execution, and feature implementation capabilities.

Setup Process:

• 🖥️ Installation: Install via terminal: PowerShell for Windows, or native install for macOS/Linux/WSL (documentation recommended).
• 📂 Project Folder: Initiate Claude Code in your project directory (cd then claude). A guided setup follows (including theme).
• 🔑 Authentication: Log in with a Claude account (subscription-based, fixed monthly cost, full claude.ai access) or an Anthropic API key (pay-as-you-go, potentially costly; requires credit via console.anthropic.com).

IDE Integration (VS Code/Cursor):

• ⚙️ Installation: For workflow enhancement, integrate with an IDE like VS Code or Cursor. Install your chosen IDE; consider the Claude Code extension for an intuitive interface.
• 💻 Access: Access Claude Code within the IDE's integrated terminal (e.g., Ctrl + Tilda). Run claude to interact.
• ✍️ New Lines: To enable multi-line input (Shift + Enter) instead of sending on Enter, execute /terminal setup.

Key Commands & Features:

• /Context: Displays token utilization (200,000-token limit), system prompt, and history. Crucial to prevent compaction.
• /Clear: Resets the current conversation window.
• /Exit: Closes Claude Code. Sessions can be resumed using resume.
• Model Selection (/Model): /model switches between Opus/Haiku models.
• Thinking Mode: Toggled by Alt + T. Disabling it speeds execution but may lower code quality; enabling robust solutions.
• Permissions: Default behavior prompts for actions. Adjust via Shift + Tab:
  • Accept Edits On Mode: Auto-makes file changes, prompts for risky commands.
  • Planning Mode: No codebase changes; focuses on planning and implementation plan generation.
  • Dangerously Skip Permissions: claude --dangerously-skip-permissions bypasses all permissions (not for beginners).
• Sub-Agents: "Deep dive agents" (e.g., explore agents) run in background to investigate solutions, identify bugs, and provide summarized feedback, keeping primary conversation focused.

To-Do App Example: The video showcases building a Kanban to-do app. Claude Code asks clarifying questions: front-end (React), data persistence (local storage), drag-and-drop, and styling (Tailwind). An implementation plan is generated and saved. The example highlights Claude's iterative capability by fixing an initial data persistence bug. It also demonstrates using three "deep dive agents" to review the implementation for bugs, delivering concise summaries for resolution. Exemplifies multi-agent collaboration for analysis and fixes.

Final Takeaway: This tutorial outlines Claude Code's setup, features, and practical application, positioning it as an essential tool for efficient 2026 software development.