claude code guide

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Basic Information

This repository is a comprehensive, playbook-style reference for the Claude Code CLI and its ecosystem. It documents how to install and run the Anthropic CLI across platforms, explains core and session commands, details configuration files and environment variables, and describes the Model Context Protocol (MCP) and how to add MCP servers. The guide teaches how to create, version and manage sub-agents with scoped permissions and isolated contexts, explains the permission model and dangerous mode, and lists built-in slash commands and flag semantics. It also covers automation patterns for CI/CD and local git hooks, provides troubleshooting and health-checks, and collects best practices, security guidance, and advanced workflows such as CLAUDE.md project memory and multi-directory workspaces. The content is presented as an operational manual and command reference for teams and developers using Claude Code in development and automation workflows.

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Features
A near-complete command and flag reference for the Claude Code CLI including REPL, one-shot modes, session resume, config management and output formats. Multi-platform installation instructions (npm, Homebrew, AUR, Docker, WSL) and system requirements. Detailed MCP integration guidance with JSON schema examples, ready-to-copy MCP server entries, and tool permission patterns. Opinionated sub-agent design rules, example prompts, expected outputs and acceptance checklists. Environment variable and configuration file guidance including ~/.claude.json and project settings.json, feature flags, and safe-edit recommendations. Automation and scripting examples for GitHub Actions and git hooks, CI best practices, sample pre-commit and review workflows, and JSON output patterns. Troubleshooting, diagnostic commands, security best practices, thinking keywords for extended planning, and templates for team workflows and runbooks.
Use Cases
The guide helps developers and teams adopt Claude Code safely and effectively by centralizing commands, configuration patterns and operational practices. It reduces onboarding time with step-by-step installation and auth setup, explains how to limit write access and audit agent outputs, and provides policies for sub-agent responsibilities to produce smaller, reviewable diffs. CI/CDE and local git hook examples show how to automate code review and security checks. MCP examples make it easier to connect Claude to repositories, databases and web tools. Troubleshooting, health checks and recommended environment settings improve reliability. Security checklists, permission patterns and safe-edit rules help avoid accidental data loss or leaked secrets. Templates and best practices promote reproducible team workflows and versioned agent prompts inside repositories.

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