Claude Code Examples - Quick Reference Card

🚀 Installation Quick Commands

Slash Commands

bash

# Install all
cp 01-slash-commands/*.md .claude/commands/

# Install specific
cp 01-slash-commands/optimize.md .claude/commands/

Memory

bash

# Project memory
cp 02-memory/project-CLAUDE.md ./CLAUDE.md

# Personal memory
cp 02-memory/personal-CLAUDE.md ~/.claude/CLAUDE.md

Skills

bash

# Personal skills
cp -r 03-skills/code-review-specialist ~/.claude/skills/

# Project skills
cp -r 03-skills/code-review-specialist .claude/skills/

Subagents

bash

# Install all
cp 04-subagents/*.md .claude/agents/

# Install specific
cp 04-subagents/code-reviewer.md .claude/agents/

MCP

bash

# Set credentials
export GITHUB_TOKEN="your_token"
export DATABASE_URL="postgresql://..."

# Install config (project scope)
cp 05-mcp/github-mcp.json .mcp.json

# Or user scope: add to ~/.claude.json

Hooks

bash

# Install hooks
mkdir -p ~/.claude/hooks
cp 06-hooks/*.sh ~/.claude/hooks/
chmod +x ~/.claude/hooks/*.sh

# Configure in settings (~/.claude/settings.json)

Plugins

bash

# Install from examples (if published)
/plugin install pr-review
/plugin install devops-automation
/plugin install documentation

Checkpoints

bash

# Checkpoints are created automatically with every user prompt
# To rewind, press Esc twice or use:
/rewind

# Then choose: Restore code and conversation, Restore conversation,
# Restore code, Summarize from here, or Never mind

Advanced Features

bash

# Configure in settings (.claude/settings.json)
# See 09-advanced-features/config-examples.json

# Planning mode
/plan Task description

# Permission modes (use --permission-mode flag)
# manual         - Ask for approval on every action (formerly "default"; "default" still accepted as alias)
# acceptEdits    - Auto-accept file edits, ask for others
# plan           - Read-only analysis, no modifications
# auto           - Background classifier decides permissions automatically
# dontAsk        - Only pre-approved tools run; everything else is denied
# bypassPermissions - Accept all actions (requires --dangerously-skip-permissions)

# Session management
/resume                # Resume a previous conversation (no args = picker of past sessions)
/rename "name"         # Name the current session
/fork <directive>      # Spawn a background subagent that inherits the conversation
/branch [name]         # Switch into a copy of the conversation, preserving the original
claude -c              # Continue most recent conversation
claude -r "session"    # Resume session by name/ID

📋 Feature Cheat Sheet

Feature	Install Path	Usage
Slash Commands (60+)	`.claude/commands/*.md`	`/command-name`
Memory	`./CLAUDE.md`	Auto-loaded
Skills	`.claude/skills/*/SKILL.md`	Auto-invoked
Subagents	`.claude/agents/*.md`	Auto-delegated
MCP	`.mcp.json` (project) or `~/.claude.json` (user)	`/mcp__server__action`
Hooks (29 events)	`~/.claude/hooks/*.sh`	Event-triggered (5 types)
Plugins	Via `/plugin install`	Bundles all
Checkpoints	Built-in	`Esc+Esc` or `/rewind`
Planning Mode	Built-in	`/plan <task>`
Permission Modes (6)	Built-in	`--allowedTools`, `--permission-mode`
Sessions	Built-in	`/session <command>`
Background Tasks	Built-in	Run in background
Remote Control	Built-in	WebSocket API
Web Sessions	Built-in	`claude web`
Git Worktrees	Built-in	`/worktree`
Auto Memory	Built-in	Auto-saves to CLAUDE.md
Task List	Built-in	`/task list`
Bundled Skills (10)	Built-in	`/batch`, `/claude-api`, `/code-review` (explicit invocation only since v2.1.215 — Claude won't trigger this on its own), `/simplify` (cleanup-only review; distinct from `/code-review` again since v2.1.154), `/debug`, `/fewer-permission-prompts`, `/loop`, `/run` (v2.1.145+), `/run-skill-generator` (v2.1.145+), `/verify` (v2.1.145+; explicit invocation only since v2.1.215 — Claude won't trigger this on its own)

🎯 Common Use Cases

Code Review

bash

# Method 1: Slash command
cp 01-slash-commands/optimize.md .claude/commands/
# Use: /optimize

# Method 2: Subagent
cp 04-subagents/code-reviewer.md .claude/agents/
# Use: Auto-delegated

# Method 3: Skill
cp -r 03-skills/code-review-specialist ~/.claude/skills/
# Use: Auto-invoked

# Method 4: Plugin (best)
/plugin install pr-review
# Use: /review-pr

Documentation

bash

# Slash command
cp 01-slash-commands/generate-api-docs.md .claude/commands/

# Subagent
cp 04-subagents/documentation-writer.md .claude/agents/

# Skill
cp -r 03-skills/doc-generator ~/.claude/skills/

# Plugin (complete solution)
/plugin install documentation

DevOps

bash

# Complete plugin
/plugin install devops-automation

# Commands: /deploy, /rollback, /status, /incident

Team Standards

bash

# Project memory
cp 02-memory/project-CLAUDE.md ./CLAUDE.md

# Edit for your team
vim CLAUDE.md

Automation & Hooks

bash

# Install hooks (29 events, 5 types: command, http, mcp_tool, prompt, agent)
mkdir -p ~/.claude/hooks
cp 06-hooks/*.sh ~/.claude/hooks/
chmod +x ~/.claude/hooks/*.sh

# Examples:
# - Pre-commit tests: pre-commit.sh
# - Auto-format code: format-code.sh
# - Security scanning: security-scan.sh

# Auto Mode for fully autonomous workflows
claude --permission-mode auto -p "Refactor and test the auth module"
# Or cycle modes interactively with Shift+Tab

Safe Refactoring

bash

# Checkpoints are created automatically before each prompt
# Try refactoring
# If it works: continue
# If it fails: press Esc+Esc or use /rewind to go back

Complex Implementation

bash

# Use planning mode
/plan Implement user authentication system

# Claude creates detailed plan
# Review and approve
# Claude implements systematically

CI/CD Integration

bash

# Run in headless mode (non-interactive)
claude -p "Run all tests and generate report"

# With permission mode for CI
claude -p "Run tests" --permission-mode dontAsk

# With Auto Mode for fully autonomous CI tasks
claude --permission-mode auto -p "Run tests and fix failures"

# With hooks for automation
# See 09-advanced-features/README.md

Learning & Experimentation

bash

# Use plan mode for safe analysis
claude --permission-mode plan

# Experiment safely - checkpoints are created automatically
# If you need to rewind: press Esc+Esc or use /rewind

Agent Teams

bash

# Enable agent teams
export CLAUDE_AGENT_TEAMS=1

# Or in settings.json
{ "agentTeams": { "enabled": true } }

# Start with: "Implement feature X using a team approach"

Scheduled Tasks

bash

# Run a command every 5 minutes
/loop 5m /check-status

# One-time reminder
/loop 30m "remind me to check the deploy"

📁 File Locations Reference

Your Project/
├── .claude/
│   ├── commands/              # Slash commands go here
│   ├── agents/                # Subagents go here
│   ├── skills/                # Project skills go here
│   └── settings.json          # Project settings (hooks, etc.)
├── .mcp.json                  # MCP configuration (project scope)
├── CLAUDE.md                  # Project memory
└── src/
    └── api/
        └── CLAUDE.md          # Directory-specific memory

User Home/
├── .claude/
│   ├── commands/              # Personal commands
│   ├── agents/                # Personal agents
│   ├── skills/                # Personal skills
│   ├── hooks/                 # Hook scripts
│   ├── settings.json          # User settings
│   ├── managed-settings.d/    # Managed settings (enterprise/org)
│   └── CLAUDE.md              # Personal memory
└── .claude.json               # Personal MCP config (user scope)

🔍 Finding Examples

By Use Case

Performance: 01-slash-commands/optimize.md
Security: 04-subagents/secure-reviewer.md
Testing: 04-subagents/test-engineer.md
Docs: 03-skills/doc-generator/
DevOps: 07-plugins/devops-automation/

By Complexity

Simple: Slash commands
Medium: Subagents, Memory
Advanced: Skills, Hooks
Complete: Plugins

🎓 Learning Path

Day 1

bash

# Read overview
cat README.md

# Install a command
cp 01-slash-commands/optimize.md .claude/commands/

# Try it
/optimize

Day 2-3

bash

# Set up memory
cp 02-memory/project-CLAUDE.md ./CLAUDE.md
vim CLAUDE.md

# Install subagent
cp 04-subagents/code-reviewer.md .claude/agents/

Day 4-5

bash

# Set up MCP
export GITHUB_TOKEN="your_token"
cp 05-mcp/github-mcp.json .mcp.json

# Try MCP commands
/mcp__github__list_prs

Week 2

bash

# Install skill
cp -r 03-skills/code-review-specialist ~/.claude/skills/

# Let it auto-invoke
# Just say: "Review this code for issues"

Week 3+

bash

# Install complete plugin
/plugin install pr-review

# Use bundled features
/review-pr
/check-security
/check-tests

Feature Highlights

Feature	Description	Usage
Auto Mode	Fully autonomous operation with background classifier; available by default on Bedrock/Vertex/Foundry as of v2.1.207	`Shift+Tab` to cycle modes, or `--permission-mode auto`
Channels	Discord and Telegram integration	`--channels` flag, Discord/Telegram bots
Voice Dictation	Speak commands and context to Claude	`/voice` command
Hooks (29 events)	Expanded hook system with 5 types	command, http, mcp_tool, prompt, agent hook types
MCP Elicitation	MCP servers can request user input at runtime	Auto-prompted when server needs clarification
Plugin LSP	Language Server Protocol support for plugins	`userConfig`, `${CLAUDE_PLUGIN_DATA}` variable
Remote Control	Control Claude Code via WebSocket API	`claude --remote` for external integrations
Web Sessions	Browser-based Claude Code interface	`claude web` to launch
Desktop App	Native desktop application	Download from claude.ai/download
Task List	Manage background tasks	`/task list`, `/task status <id>`
Auto Memory	Automatic memory saving from conversations	Claude auto-saves key context to CLAUDE.md
Git Worktrees	Isolated workspaces for parallel development	`/worktree` to create isolated workspace
Model Selection	Switch between Sonnet 4.6, Opus 4.8, and Haiku 4.5	`/model` — since v2.1.153 the choice is saved as the default for new sessions; press `s` for session-only
Agent Teams	Coordinate multiple agents on tasks	Enable with `CLAUDE_AGENT_TEAMS=1` env var
Dynamic Workflows (v2.1.154)	Deterministic multi-agent orchestration	`/workflows` to view runs; ask Claude to create one
Scheduled Tasks	Recurring tasks with `/loop`	`/loop 5m /command` or CronCreate tool
Chrome Integration	Browser automation	`--chrome` flag or `/chrome` command
Keyboard Customization	Custom keybindings	`/keybindings` command
/usage-credits	Configure extra usage limits (renamed from `/extra-usage` in v2.1.144; old name still works as alias)	`/usage-credits`
/run (v2.1.145+)	Launch this project's app to see a change running	`/run`
/verify (v2.1.145+)	Build, run, and observe the app to confirm a fix works (explicit invocation only since v2.1.215 — Claude won't trigger this on its own)	`/verify`
/run-skill-generator (v2.1.145+)	Teach `/run`/`/verify` how to handle a specific project	`/run-skill-generator`
Subagent Output Scanning (v2.1.210+)	Scans subagent reports for prompt-injection patterns and neutralizes them	On by default, no opt-out
Session-Wide Spawn Caps (v2.1.212, extended v2.1.217)	200/session limits on WebSearch calls and subagent spawns; v2.1.217 added a concurrent-subagent cap (default 20) and turned nested subagent spawning off by default (previously allowed up to 5 levels since v2.1.172)	`CLAUDE_CODE_MAX_WEB_SEARCHES_PER_SESSION`, `CLAUDE_CODE_MAX_SUBAGENTS_PER_SESSION`, `CLAUDE_CODE_MAX_CONCURRENT_SUBAGENTS` (default 20), `CLAUDE_CODE_MAX_SUBAGENT_SPAWN_DEPTH` (opt back into nesting); `/clear` resets
Screen Reader Mode (v2.1.208)	Plain-text rendering mode for screen readers	`--ax-screen-reader` flag, `CLAUDE_AX_SCREEN_READER=1`, or `"axScreenReader": true` in settings

Tips & Tricks

Customization

Start with examples as-is
Modify to fit your needs
Test before sharing with team
Version control your configurations

Best Practices

Use memory for team standards
Use plugins for complete workflows
Use subagents for complex tasks
Use slash commands for quick tasks

Troubleshooting

bash

# Check file locations
ls -la .claude/commands/
ls -la .claude/agents/

# Verify YAML syntax
head -20 .claude/agents/code-reviewer.md

# Test MCP connection
echo $GITHUB_TOKEN

📊 Feature Matrix

Need	Use This	Example
Quick shortcut	Slash Command (60+)	`01-slash-commands/optimize.md`
Team standards	Memory	`02-memory/project-CLAUDE.md`
Auto workflow	Skill	`03-skills/code-review-specialist/`
Specialized task	Subagent	`04-subagents/code-reviewer.md`
External data	MCP (+ Elicitation)	`05-mcp/github-mcp.json`
Event automation	Hook (29 events, 5 types)	`06-hooks/pre-commit.sh`
Complete solution	Plugin (+ LSP support)	`07-plugins/pr-review/`
Safe experiment	Checkpoint	`08-checkpoints/checkpoint-examples.md`
Fully autonomous	Auto Mode	`--permission-mode auto` or `Shift+Tab`
Chat integrations	Channels	`--channels` (Discord, Telegram)
CI/CD pipeline	CLI	`10-cli/README.md`

🔗 Quick Links

Main Guide: README.md
Complete Index: INDEX.md
Original Guide: claude_concepts_guide.md

📞 Common Questions

Q: Which should I use? A: Start with slash commands, add features as needed.

Q: Can I mix features? A: Yes! They work together. Memory + Commands + MCP = powerful.

Q: How do I share with team? A: Commit .claude/ directory to git.

Q: What about secrets? A: Use environment variables, never hardcode.

Q: Can I modify examples? A: Absolutely! They're templates to customize.

✅ Checklist

Getting started checklist:

Quick Start: cat README.md

Full Index: cat INDEX.md

This Card: Keep it handy for quick reference!

Last Updated: 2026-07-22 Claude Code Version: 2.1.217 Sources:

https://code.claude.com/docs/en/cli-reference
https://github.com/anthropics/claude-code/blob/main/CHANGELOG.mdCompatible Models: Claude Sonnet 5, Claude Sonnet 4.6, Claude Opus 4.8, Claude Haiku 4.5

Claude Code Examples - Quick Reference Card ​

🚀 Installation Quick Commands ​

Slash Commands ​

Memory ​

Skills ​

Subagents ​

MCP ​

Hooks ​

Plugins ​

Checkpoints ​

Advanced Features ​

📋 Feature Cheat Sheet ​

🎯 Common Use Cases ​

Code Review ​

Documentation ​

DevOps ​

Team Standards ​

Automation & Hooks ​

Safe Refactoring ​

Complex Implementation ​

CI/CD Integration ​

Learning & Experimentation ​

Agent Teams ​

Scheduled Tasks ​

📁 File Locations Reference ​

🔍 Finding Examples ​

By Category ​

By Use Case ​

By Complexity ​

🎓 Learning Path ​

Day 1 ​

Day 2-3 ​

Day 4-5 ​

Week 2 ​

Week 3+ ​

Feature Highlights ​

Tips & Tricks ​

Customization ​

Best Practices ​

Troubleshooting ​

📊 Feature Matrix ​

🔗 Quick Links ​

📞 Common Questions ​

✅ Checklist ​

Claude Code Examples - Quick Reference Card

🚀 Installation Quick Commands

Slash Commands

Memory

Skills

Subagents

MCP

Hooks

Plugins

Checkpoints

Advanced Features

📋 Feature Cheat Sheet

🎯 Common Use Cases

Code Review

Documentation

DevOps

Team Standards

Automation & Hooks

Safe Refactoring

Complex Implementation

CI/CD Integration

Learning & Experimentation

Agent Teams

Scheduled Tasks

📁 File Locations Reference

🔍 Finding Examples

By Category

By Use Case

By Complexity

🎓 Learning Path

Day 1

Day 2-3

Day 4-5

Week 2

Week 3+

Feature Highlights

Tips & Tricks

Customization

Best Practices

Troubleshooting

📊 Feature Matrix

🔗 Quick Links

📞 Common Questions

✅ Checklist