Claude Code Complete Guide¶
Key Points¶
Enhanced Development Productivity
Dramatically improve development speed with AI-powered code generation, refactoring, and debugging
Extended Thinking Mode
Deep thinking and solutions for complex problems over minutes to hours
Comprehensive Tool Integration
Seamless integration with IDEs, GitHub, and CI/CD pipelines
Enterprise-Ready
Permission management and security features for large teams
📖 What is Claude Code¶
Claude Code is an advanced AI coding assistant platform developed by Anthropic. With major updates in 2025, it has evolved from a simple chat tool to a comprehensive development support environment.
Key Features¶
- World-class Performance: Claude Opus 4.6 leads Terminal-Bench 2.0 and Humanity's Last Exam; Claude Sonnet 4.5 achieved SWE-bench 77.2% and OSWorld 61.4% (as of February 2026)
- 1,000,000 Token Context: Understands entire large-scale projects (Claude Sonnet 4 and later)
- Multimodal Support: Integrated processing of code, images, and documents
- Full Japanese Support: Natural Japanese conversation and code generation
- Haiku 4.5: Lightweight model available for fast processing
Key v2.0 Features (Late 2025 - 2026)¶
| Feature | Description |
|---|---|
| Compaction | Context compression that retains critical information across long sessions while reducing token consumption |
| Agent Teams | Multiple sub-agents work in parallel, splitting complex tasks for faster processing |
| Deep VS Code Integration | Inline diff display, terminal integration, and seamless file operations within the editor |
| Checkpoint / Restore | Save and restore working state for safe experimentation |
| 14 Hook Event Types | PreToolUse, PostToolUse, Notification, and more for automating every stage of the development workflow |
🗺️ Guide Map¶
This guide systematically covers Claude Code features with the following structure:
🎯 Basics - Start Here¶
Basic usage, prompt writing, and effective utilization techniques
Control methods to prevent AI runaway and ensure intended behavior
Command execution automation and permission management configuration
🚀 Advanced - Further Efficiency¶
Event-driven automation and customization
Advanced integration using Model Context Protocol
CI/CD pipeline integration methods
🏢 Enterprise Edition¶
Organization-wide Claude Code deployment strategy
Permission Management Optimization
Permission design and security for team development
💡 Practical Examples¶
Batch Processing Complete Guide
Parallel migrations with /batch and CI/CD integration with claude -p
Code generation from screenshots and more
🎓 Learning Paths¶
For Beginners¶
- Claude Code Best Practices - Learn basic operations
- Auto-Permission Guide - Master efficient usage
- Control & Best Practices - Safe operation methods
For Intermediate Users¶
- Hooks Complete Guide - Learn customization methods
- GitHub Actions Integration - CI/CD integration
- Batch Processing Master - Automation techniques
For Advanced Users¶
- MCP Integration Strategy - Advanced integration techniques
- Enterprise Deployment - Large-scale rollout
- Permission Management Optimization - Secure operations