Claude Code Quick Start Guide

Welcome to Claude Code! This powerful AI programming assistant can help you improve programming efficiency and automate development tasks.

1. Installation & Configuration

1.1 System Requirements

• Operating System: macOS 10.15+, Ubuntu 20.04+/Debian 10+, or Windows via WSL
• Hardware: 4GB+ RAM
• Software: Node.js 18+
• Network: Internet connection required for authentication and AI processing

1.2 Installation Steps

Install globally using npm:

npm install -g @anthropic-ai/claude-code

Important: Don't use sudo npm install -g, which may cause permission issues and security risks.

After installation, navigate to your project directory and start Claude Code:

cd your-awesome-project
claude

2. API Key Acquisition & Configuration

2.1 Register Account

1. Visit https://coultra.blueshirtmap.com
2. Click the register button to create a new account
3. Fill in the necessary registration information

2.2 Create API Key

1. After successful login, go to the API key management page
2. Create a new API key group
3. Select "ClaudeCode" as the group name
4. Generate and copy your API key

3. Configuration File Setup

3.1 API Key Configuration

Configuration File Setup Method

Create or edit configuration file:

# User settings (global)
~/.claude/settings.json

# Project settings (project level)
.claude/settings.json

Configuration file example:

{
    "env": {
      "ANTHROPIC_API_KEY": "Your-API-Key",
      "ANTHROPIC_BASE_URL": "https://coultra.blueshirtmap.com",
      "CLAUDE_CODE_MAX_OUTPUT_TOKENS":64000,
      "CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC":1,
      "CLAUDE_MODEL": "Claude-Model-Name"
    },
    "permissions": {
      "allow": [],
      "deny": []
    }
  }

3.2 Permission Settings (Optional)

Claude Code adopts a conservative permission policy, requiring user confirmation for operations that may modify the system by default. You can customize the allowed tools list:

• Use /permissions command to add or remove tools
• Edit settings.json file for batch configuration
• Use --allowedTools CLI flag to set session-specific permissions

3.3 Working Directory Configuration (Optional)

Configure additional working directories that Claude can access:

{
  "permissions": {
    "additionalDirectories": ["../docs/", "../shared/"]
  }
}

3.4 Quick Setup - One-Click Script

After purchasing the API, you only need to modify line 8 of this script readonly API_KEY="", fill in your API key (token), save this script as claudecode.sh, then open terminal:

chmod +x claudecode.sh
./claudecode.sh

Just follow the prompts.

#!/bin/bash

# ==============================================================================
# 🔧 Configuration Area - Please set your API configuration here
# ==============================================================================

# 🔑 API Key - Please fill in your API key
readonly API_KEY=""

# 🌐 API Base URL - Please fill in your API base URL (e.g.: "https://coultra.blueshirtmap.com")
readonly API_BASE_URL="https://coultra.blueshirtmap.com"

# ==============================================================================
# Do not modify the content below
# ==============================================================================

# Script constants
readonly CLAUDE_COMMAND="claude"
readonly NPM_PACKAGE="@anthropic-ai/claude-code"
readonly CLAUDE_DIR="$HOME/.claude"
readonly SETTINGS_FILE="$CLAUDE_DIR/settings.json"

# Detect operating system
detect_os() {
    case "$(uname -s)" in
        Darwin)
            echo "macos"
            ;;
        Linux)
            echo "linux"
            ;;
        *)
            echo "unknown"
            ;;
    esac
}

# Check if configuration is complete
check_config() {
    if [ -z "$API_KEY" ] || [ -z "$API_BASE_URL" ]; then
        echo "❌ Configuration incomplete! Please edit the script and fill in the following information:"
        echo "  - API_KEY: Your API key"
        echo "  - API_BASE_URL: API base address (e.g.: https://coultra.blueshirtmap.com )"
        exit 1
    fi
}

# Install Homebrew (macOS only)
install_homebrew() {
    if ! command -v brew &> /dev/null; then
        echo "Installing Homebrew..."
        /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
        
        # Add Homebrew to PATH
        if [[ -f "/opt/homebrew/bin/brew" ]]; then
            eval "$(/opt/homebrew/bin/brew shellenv)"
        elif [[ -f "/usr/local/bin/brew" ]]; then
            eval "$(/usr/local/bin/brew shellenv)"
        fi
        
        echo "✅ Homebrew installation completed"
    else
        echo "ℹ️ Homebrew already installed"
    fi
}

# Install packages on macOS
install_macos_packages() {
    install_homebrew
    
    # Install Node.js (includes npm)
    if ! command -v node &> /dev/null; then
        echo "Installing Node.js..."
        brew install node
        echo "✅ Node.js installation completed"
    else
        echo "ℹ️ Node.js already installed"
    fi
    
    # Install jq
    if ! command -v jq &> /dev/null; then
        echo "Installing jq..."
        brew install jq
        echo "✅ jq installation completed"
    else
        echo "ℹ️ jq already installed"
    fi
    
    # Install Python3
    if ! command -v python3 &> /dev/null; then
        echo "Installing Python3..."
        brew install python3
        echo "✅ Python3 installation completed"
    else
        echo "ℹ️ Python3 already installed"
    fi
}

# Install packages on Linux
install_linux_packages() {
    # Detect Linux distribution
    if command -v apt-get &> /dev/null; then
        # Ubuntu/Debian
        echo "Detected Ubuntu/Debian system"
        
        # Update package manager
        echo "Updating package manager..."
        sudo apt-get update
        
        # Install Node.js
        if ! command -v node &> /dev/null; then
            echo "Installing Node.js..."
            # Install NodeSource repository
            curl -fsSL https://deb.nodesource.com/setup_lts.x | sudo -E bash -
            sudo apt-get install -y nodejs
            echo "✅ Node.js installation completed"
        else
            echo "ℹ️ Node.js already installed"
        fi
        
        # Install jq
        if ! command -v jq &> /dev/null; then
            echo "Installing jq..."
            sudo apt-get install -y jq
            echo "✅ jq installation completed"
        else
            echo "ℹ️ jq already installed"
        fi
        
        # Install Python3
        if ! command -v python3 &> /dev/null; then
            echo "Installing Python3..."
            sudo apt-get install -y python3 python3-pip
            echo "✅ Python3 installation completed"
        else
            echo "ℹ️ Python3 already installed"
        fi
        
    elif command -v yum &> /dev/null; then
        # CentOS/RHEL
        echo "Detected CentOS/RHEL system"
        
        # Install Node.js
        if ! command -v node &> /dev/null; then
            echo "Installing Node.js..."
            curl -fsSL https://rpm.nodesource.com/setup_lts.x | sudo bash -
            sudo yum install -y nodejs
            echo "✅ Node.js installation completed"
        else
            echo "ℹ️ Node.js already installed"
        fi
        
        # Install jq
        if ! command -v jq &> /dev/null; then
            echo "Installing jq..."
            sudo yum install -y jq
            echo "✅ jq installation completed"
        else
            echo "ℹ️ jq already installed"
        fi
        
        # Install Python3
        if ! command -v python3 &> /dev/null; then
            echo "Installing Python3..."
            sudo yum install -y python3 python3-pip
            echo "✅ Python3 installation completed"
        else
            echo "ℹ️ Python3 already installed"
        fi
        
    elif command -v pacman &> /dev/null; then
        # Arch Linux
        echo "Detected Arch Linux system"
        
        # Install Node.js
        if ! command -v node &> /dev/null; then
            echo "Installing Node.js..."
            sudo pacman -S --noconfirm nodejs npm
            echo "✅ Node.js installation completed"
        else
            echo "ℹ️ Node.js already installed"
        fi
        
        # Install jq
        if ! command -v jq &> /dev/null; then
            echo "Installing jq..."
            sudo pacman -S --noconfirm jq
            echo "✅ jq installation completed"
        else
            echo "ℹ️ jq already installed"
        fi
        
        # Install Python3
        if ! command -v python3 &> /dev/null; then
            echo "Installing Python3..."
            sudo pacman -S --noconfirm python python-pip
            echo "✅ Python3 installation completed"
        else
            echo "ℹ️ Python3 already installed"
        fi
        
    else
        echo "❌ Unsupported Linux distribution, please manually install the following packages:"
        echo "  - Node.js (including npm)"
        echo "  - jq"
        echo "  - python3"
        exit 1
    fi
}

# Install Claude Code
install_claude_code() {
    if command -v "$CLAUDE_COMMAND" &> /dev/null; then
        echo "ℹ️ Claude Code already installed"
    else
        echo "Installing Claude Code..."
        
        if ! command -v npm &> /dev/null; then
            echo "❌ npm not installed, cannot install Claude Code"
            exit 1
        fi
        
        if ! npm install -g "$NPM_PACKAGE"; then
            echo "❌ Claude Code installation failed"
            exit 1
        fi
        
        echo "✅ Claude Code installation completed"
    fi
}

# Configure Claude Code
configure_claude_code() {
    echo "Configuring Claude Code..."
    
    # Create .claude directory
    if [ ! -d "$CLAUDE_DIR" ]; then
        mkdir -p "$CLAUDE_DIR"
    fi
    
    # Backup original configuration (if exists)
    if [ -f "$SETTINGS_FILE" ]; then
        cp "$SETTINGS_FILE" "$SETTINGS_FILE.backup"
        echo "ℹ️ Original configuration backed up as settings.json.backup"
    fi
    
    # Create new configuration file
    cat > "$SETTINGS_FILE" << EOF
{
  "env": {
    "ANTHROPIC_API_KEY": "$API_KEY",
    "ANTHROPIC_BASE_URL": "$API_BASE_URL",
    "CLAUDE_CODE_MAX_OUTPUT_TOKENS": 64000,
    "CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC": 1
  },
  "permissions": {
    "allow": [],
    "deny": []
  },
  "apiKeyHelper": "echo '$API_KEY'"
}
EOF
    
    echo "✅ Configuration file creation completed"
}

# Main function
main() {
    echo "🚀 Claude Code Automatic Installation and Configuration Script"
    echo "============================================================="
    
    # Check configuration
    check_config
    
    # Detect operating system
    OS=$(detect_os)
    echo "Detected operating system: $OS"
    
    # Install dependencies based on operating system
    case "$OS" in
        "macos")
            install_macos_packages
            ;;
        "linux")
            install_linux_packages
            ;;
        *)
            echo "❌ Unsupported operating system: $OS"
            exit 1
            ;;
    esac
    
    # Install Claude Code
    install_claude_code
    
    # Configure Claude Code
    configure_claude_code
    
    echo "🎉 All configuration completed!"
    echo "Configuration file location: $SETTINGS_FILE"
    echo "You can now use the 'claude' command!"
}

# Run main function
main "$@"

4. Basic Usage

4.1 Launch Methods

Interactive Mode

claude

Launch with Initial Prompt

claude "explain this project"

Non-interactive Mode

claude -p "explain this function"

Process Pipeline Input

cat logs.txt | claude -p "explain"

4.2 Common Commands

• claude update - Update to latest version
• claude -c - Continue recent conversation
• claude -r <session-id> - Restore specific session
• claude mcp - Configure MCP server

4.3 Keyboard Shortcuts

General Control

• Ctrl+C: Cancel current input or generation
• Ctrl+D: Exit Claude Code session
• Ctrl+L: Clear terminal screen
• Up/Down: Browse command history
• Esc + Esc: Edit previous message

Multi-line Input

• \ + Enter: Works for all terminals
• Option+Enter: macOS default
• Shift+Enter: Available after executing /terminal-setup

5. Advanced Features

5.1 CLI Reference

Claude Code provides rich command-line options to customize its behavior:

Basic CLI Commands

Command	Description	Example
claude	Start interactive REPL	claude
claude "query"	Start REPL with initial prompt	claude "explain this project"
claude -p "query"	Query via SDK then exit	claude -p "explain this function"
claude -c	Continue recent conversation	claude -c
claude update	Update to latest version	claude update

Important CLI Flags

Flag	Description	Example
--allowedTools	List of allowed tools	--allowedTools "Bash(git log:*)" "Read"
--verbose	Enable verbose logging	claude --verbose
--model	Set model to use	claude --model claude-sonnet-4
--permission-mode	Specify permission mode	claude --permission-mode plan
--dangerously-skip-permissions	Skip permission prompts (use with caution)	claude --dangerously-skip-permissions

5.2 Interactive Mode

Vim Mode

Enable vim-style editing:

/vim

Mode Switching

• Esc: Enter NORMAL mode
• i: Insert before cursor
• a: Insert after cursor
• o: Create new line below

Navigation (NORMAL mode)

• h/j/k/l: Left/Down/Up/Right movement
• w: Next word
• 0: Line beginning
• $: Line end
• gg: Text beginning
• G: Text end

5.3 Slash Commands

Claude Code provides various slash commands to enhance interaction:

Basic Commands

Command	Description	Example
/help	Show help information	/help
/clear	Clear conversation history	/clear
/config	Manage configuration	/config
/permissions	Manage permissions	/permissions
/vim	Enable vim mode	/vim

Advanced Commands

Command	Description	Function
/init	Initialize project	Auto-generate CLAUDE.md file
/terminal-setup	Setup terminal	Configure keyboard shortcuts
/project:<command>	Project-specific commands	Run custom project commands

5.4 Custom Slash Commands

You can create custom slash commands:

1. Create Markdown files in .claude/commands/ directory
2. File name becomes command name
3. Content serves as command template, can use $ARGUMENTS placeholder

Example: .claude/commands/fix-github-issue.md

Please analyze and fix GitHub issue: $ARGUMENTS.

Follow these steps:
1. Use `gh issue view` to get issue details
2. Understand the problem description
3. Search related code files
4. Implement necessary fixes
5. Write and run tests
6. Ensure code passes lint checks
7. Create descriptive commit message
8. Push and create PR

6. Practical Tutorials

6.1 Understanding New Codebase

Quick Codebase Overview

If you just joined a new project and want to quickly understand its structure:

1. Enter project root directory: cd /path/to/project
2. Start Claude Code: claude
3. Request codebase overview: > Give me a codebase overview
4. Dive deeper into specific components:
   • > Explain the main architectural patterns used here
   • > What are the key data models?
   • > How is authentication handled?

Tips:

• Start with broad questions, then gradually focus on specific areas
• Ask about coding conventions and patterns used in the project
• Request a glossary of project-specific terminology

Finding Relevant Code

When you need to locate code related to a specific feature:

1. Ask Claude to find related files: > Find files that handle user authentication
2. Get context on component interactions: > How do these auth files work together?
3. Understand execution flow: > Trace the login process from frontend to database

Tips:

• Be specific about what you're looking for
• Use domain-specific language from the project

6.2 Efficient Bug Fixing

Diagnosing Error Messages

When encountering errors, find and fix issues through:

1. Share error message with Claude: > I'm seeing an error when running npm test
2. Request fix suggestions: > Provide ways to fix the @ts-ignore in user.ts
3. Apply fixes: > Update user.ts with the null checks you suggested

Tips:

• Tell Claude the command used to reproduce the issue and provide stack trace
• Mention any steps to reproduce the error
• Specify if the error is intermittent or consistent

6.3 Code Refactoring

Modernizing Legacy Code

When updating old code with modern programming patterns:

1. Identify code to refactor: > Find deprecated APIs in our codebase
2. Request refactoring suggestions: > Suggest how to refactor utils.js using modern JavaScript features
3. Apply changes safely: > Refactor utils.js with ES2024 features while maintaining original behavior
4. Validate refactoring: > Run tests on the refactored code

Tips:

• Ask Claude about benefits of modern approaches
• Request backward compatibility when needed
• Perform small, testable incremental refactoring

6.4 Handling Tests

Adding Test Coverage

To add tests for uncovered code:

1. Identify untested code: > Find uncovered functions in NotificationsService.swift
2. Generate test framework: > Add tests for notification service
3. Add meaningful test cases: > Add test cases for edge cases in notification service
4. Run and validate tests: > Run new tests and fix any failures

Tips:

• Request tests covering edge cases and error conditions
• Ask for unit tests and integration tests as needed
• Have Claude explain testing strategy

6.5 Creating Pull Requests

Generating Comprehensive PRs

When creating a well-documented pull request:

1. Summarize changes: > Summarize the changes I made to the auth module
2. Generate PR with Claude: > Create a PR
3. Review and enhance description: > Enhance the PR description with more info about security improvements
4. Add testing information: > Add information about how to test these changes

Tips:

• Ask Claude to create a PR directly
• Review Claude-generated PR before submission
• Request Claude to highlight potential risks or considerations

6.6 Handling Documentation

Generating Code Documentation

To add or update code documentation:

1. Identify code without proper JSDoc comments: > Find functions without proper JSDoc comments in auth module
2. Generate documentation: > Add JSDoc comments to uncommented functions in auth.js
3. Review and enhance documentation: > Improve generated documentation with more context and examples
4. Validate documentation: > Check if documentation meets our project standards

Tips:

• Specify required documentation style (JSDoc, docstrings, etc.)
• Request examples in documentation
• Ask for documentation of public APIs, interfaces, and complex logic

6.7 Working with Images

Analyzing Images and Screenshots

To work with images or have Claude analyze image content:

1. Add image to conversation:

   • Drag image into Claude Code window
   • Copy and paste image to CLI (ctrl+v)
   • Provide image path: > Analyze this image: /path/to/your/image.png

2. Request Claude to analyze image:

   • > What does this image show?
   • > Describe the UI elements in this screenshot
   • > What's wrong with this chart?

3. Use images for context:

   • > This is a screenshot of the error, what's causing it?
   • > This is the current database schema, how do we need to modify it for new features?

4. Get code suggestions from images:

   • > Generate CSS to match this design mockup
   • > What HTML structure could recreate this component?

Tips:

• Use images when text descriptions are unclear or verbose
• Provide screenshots of errors, UI designs, or diagrams for better context
• Use multiple images in conversation when needed

6.8 Setting Up Project Memory

Creating Effective CLAUDE.md Files

To store important project information, conventions, and common commands:

Initialize CLAUDE.md file for your codebase: > /init

Tips:

• Include common commands (build, test, lint) to avoid repeated searches
• Document code style preferences and naming conventions
• Add project-specific important architectural patterns

You can add CLAUDE.md files to the folder where you run Claude, parent directories (Claude auto-reads these), or subdirectories (Claude pulls these as needed).

6.9 Unix-style Utilities

Adding to Validation Process

Add Claude to your build scripts:

// package.json
{
  ...
  "scripts": {
    ...
    "lint:claude": "claude -p 'You are a code linter, please review the diff against main branch and report any issues related to typos. Each issue should have filename and line number on one line, description on the second line. Return no other text.'"
  }
}

Piping Input/Output

Pipe data through Claude:

cat build-error.txt | claude -p 'Concisely explain the root cause of this build error' > output.txt

6.10 MCP Server Configuration

Configuring MCP Servers

To enhance Claude's capabilities by connecting to specialized tools and external servers:

1. Add MCP Stdio server:

   • Basic syntax: claude mcp add <name> <command> [args...]
   • Example adding local server: claude mcp add my-server -e API_KEY=123 -- /path/to/server arg1 arg2

2. Manage MCP servers:

   • List all configured servers: claude mcp list
   • Get details of specific server: claude mcp get my-server
   • Remove server: claude mcp remove my-server

Tips:

• Use -s or --scope flag with project (default) or global to specify where configuration is stored
• Use -e or --env flag to set environment variables (e.g., -e KEY=value)
• MCP follows client-server architecture, Claude Code (client) can connect to multiple specialized servers

Connecting to Postgres MCP Server

To give Claude read-only access to query PostgreSQL database and inspect schema:

1. Add Postgres MCP server:

claude mcp add postgres-server /path/to/postgres-mcp-server --connection-string "postgresql://user:pass@localhost:5432/mydb"

2. Use Claude to query database:
   • > Describe the schema of our users table
   • > What are the most recent orders in the system?
   • > Show the relationship between customers and invoices

Tips:

• Postgres MCP server provides read-only access for security
• Claude can help explore database structure and run analytical queries
• Use it to quickly understand database schema in unfamiliar projects
• Ensure your connection string uses credentials with minimum required permissions

7. Advanced Features

7.1 IDE Integration

Claude Code supports connections to mainstream IDEs:

• You can see Claude Code changes directly in IDE and interact with it
• Claude Code now supports VSCode and JetBrains
• If you use Linux/macOS, you can use the plugin directly
  • For VSCode, invoke Claude Code in VSCode's built-in terminal and plugin will auto-install
  • For JetBrains, download via this link: Claude Code [Beta] - IntelliJ IDEs Plugin
• You may need to manually specify IDE or check IDE connection with: > /ide
• If using VSCode+WSL, please install WSL plugin from VSCode marketplace first
• For more usage, refer to Claude Code's official documentation

7.2 Model Switching and Configuration

Claude Code supports flexible switching between Claude 4 Opus and Claude 4 Sonnet:

• We strongly recommend using Claude 4 Sonnet - experience is similar to Claude 4 Opus but billing rate is only 1/5
• We default to Claude 4 Sonnet, you can modify this in configuration after login
• If you haven't disabled "Force Sonnet" in site settings, model switching in /model won't take effect
• Switch models in Claude Code with: > /model

7.3 Context Management

Claude Code supports context compression to save credits:

• Claude Code typically has long context, we recommend using this slash command to compress and save credits
• Longer context often requires more credits
• /compact [Your description]

7.4 Conversation Recovery

Claude Code can restore previous conversations:

• Use this command to restore your last conversation: claude --continue
• This immediately restores your most recent conversation without prompts
• To display timestamps, use: claude --resume
• This shows an interactive conversation selector displaying:
  • Conversation start time
  • Initial prompt or conversation summary
  • Message count
• Use arrow keys to navigate and press Enter to select conversation

7.5 Image Processing

Claude Code can process image information:

• You can use any of these methods:
  • Drag and drop image into Claude Code window (on macOS)
  • Copy image and paste with Ctrl+v into CLI (on macOS)
  • Provide image path: > Analyze this image: /path/to/your/image.png
• You can request work using natural language:
  • > This is an error screenshot. What's causing it?
  • > What does this image show?
  • > Describe the UI elements in this screenshot
  • > Generate CSS to match this design mockup
  • > What HTML structure could recreate this component?

7.6 Deep Thinking

Claude Code supports deep thinking:

• You need to request deep thinking through natural language
• > I need to implement a new authentication system using OAuth2 for our API. Think deeply about the best approach to implement this in our codebase.
• > Think about potential security vulnerabilities in this approach
• > Think more deeply about edge cases we should handle
• Recommended for complex problems, but consumes significant credits

7.7 Advanced Git Operations

Claude Code supports natural language Git operations:

• > Commit my changes
• > Create a PR
• > Which commit added markdown tests last December?
• > Rebase on main branch and resolve any merge conflicts

Using Git Worktrees

You can use worktrees to create isolated coding environments:

• If you need to work on multiple tasks simultaneously with complete code isolation between Claude Code instances
• Git worktrees allow you to check out multiple branches from the same repository into separate directories
• Each worktree has its own working directory with isolated files while sharing the same Git history
• Create new worktree:

# Create worktree with new branch
git worktree add ../project-feature-a -b feature-a

# Or create worktree with existing branch
git worktree add ../project-bugfix bugfix-123

• Run Claude Code in each worktree:

# Navigate to your worktree
cd ../project-feature-a

# Run Claude Code in this isolated environment
claude

7.8 Other Advanced Features

Claude Code supports various advanced features:

• Claude Code can be used as Unix-like tool
• Claude Code supports custom slash commands
• Claude Code supports adding command arguments with $ARGUMENTS
• Claude Code supports advanced settings configuration
• Claude Code supports GitHub Actions integration
• Claude Code supports SDK development
• Claude Code supports Model Context Protocol (MCP)

8. Troubleshooting

8.1 Memory Storage Issues

How does Claude Code store memory?

Claude Code stores memory in ~/.claude. Unless specifically required, please don't delete this directory.

8.2 Model Name Issues

Why does it occasionally reply with wrong model name?

TryAllAI promises not to replace your requested model and never mix in other models. This is because Claude Code doesn't use Claude 4 series models for simple tasks.

8.3 Command Line Errors

How to handle command line parameter execution errors?

These issues are common on WSL and are Agent-related errors. We recommend using macOS/Ubuntu, which typically have fewer issues.

8.4 Cleaning Claude Code

How to completely clean Claude Code?

You can execute the following command to clean Claude Code login information:

rm ~/.claude* -rf

8.5 API Errors

How to handle API Error, Tools Error?

This is usually a network issue. Please exit and re-execute with claude -c. If the problem persists, contact support.

8.6 OAuth Verification Errors

OAuth verification error solutions

• Ensure no proxy is configured in environment variables before login verification
• If the problem persists, ignore the popup browser and copy the terminal link to open, verify through verification code method

8.7 Response Timeout Issues

What to do when there's no response for a long time?

• We recommend pressing ctrl+c and restarting Claude Code, this is often a network issue
• If command line is still unresponsive, we recommend killing the process and starting a new session, this won't affect your work progress
• You can restore the last session with: claude -c

9. Conclusion

Claude Code is a powerful AI programming assistant that can significantly improve your development efficiency through proper configuration and usage. We recommend:

1. Start with basic features and gradually explore advanced capabilities
2. Customize configuration according to project needs
3. Use CLAUDE.md files to record project-specific information
4. Use permission management reasonably to ensure security
5. Explore MCP and custom command extension features

Enjoy using Claude Code! For questions, please refer to official documentation or community support.