Claude Code Terminal Workflow: Complete Developer Guide

TL;DR

Claude Code's CLI offers powerful terminal-based AI coding. Install via npm, authenticate, and start coding with natural language. Agent mode handles multi-step tasks autonomously. MCP connects to external tools like Git, databases, and Slack.

Installation

# Install globally
npm install -g @anthropic-ai/claude-code

# Authenticate
claude-code auth login

# Verify installation
claude-code --version

Basic Usage

# Start interactive session
claude-code

# One-shot command
claude-code "explain this function"

# With file context
claude-code "refactor main.py for better error handling"

# Specify model
claude-code --model opus "complex architecture question"

Essential Commands

Command	Description

claude-code

Start interactive session

claude-code auth

Authentication management

claude-code config

Configuration settings

claude-code mcp

MCP server management

claude-code history

View conversation history

Agent Mode

Agent mode enables autonomous multi-step task execution:

# Enable agent mode
claude-code --agent "implement user authentication with tests"

# Agent will:
# 1. Analyze existing codebase
# 2. Create necessary files
# 3. Implement features
# 4. Write tests
# 5. Run tests and fix failures
# 6. Commit changes

MCP Integrations

Connect Claude Code to external tools:

# Configure MCP servers
claude-code mcp add git --repo /path/to/repo
claude-code mcp add postgres --connection "postgres://..."
claude-code mcp add slack --token "xoxb-..."

# Use in conversation
"Check git status and create a PR for these changes"
"Query the users table for inactive accounts"
"Post deployment status to #engineering"

Git Workflow

# Natural language git
claude-code "check what files changed"
claude-code "create a feature branch for auth"
claude-code "commit with a descriptive message"
claude-code "create a PR with summary"

# Review workflow
claude-code "review the diff and suggest improvements"
claude-code "find potential bugs in staged changes"

Configuration

# ~/.claude-code/config.json
{
  "default_model": "sonnet-5",
  "max_tokens": 4096,
  "agent_mode": false,
  "mcp_servers": [
    {"name": "git", "command": "mcp-server-git"}
  ],
  "safety_confirmations": true
}

Productivity Tips

• Use aliases: alias cc='claude-code'
• Pipe input: cat file.py | claude-code "explain this"
• Output to file: claude-code "generate tests" > tests.py
• Session persistence: claude-code --continue
• Quiet mode: claude-code -q "quick question"

vs Codex CLI

Feature	Claude Code	Codex CLI

Agent mode

Built-in

Limited

MCP support

Extensive

None

Context window

200K

128K

Speed

Moderate

Fast

Git integration

Native

Basic

Conclusion

Claude Code's terminal workflow provides a powerful alternative to IDE-based tools. The combination of agent mode, MCP integrations, and natural language commands creates an efficient development experience for CLI enthusiasts.