Add comprehensive CLI reference documentation covering: - All CLI commands and flags with examples - Model configuration, system prompts, permissions - Output formats (text, JSON, stream-JSON) - Session management and MCP configuration - 7 high-value use cases: CI/CD, piping, batch processing, multi-session workflows, custom agents, security, JSON API Update README.md and LEARNING-ROADMAP.md with CLI lesson navigation and learning path integration.
529 lines
16 KiB
Markdown
529 lines
16 KiB
Markdown

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# 📚 Claude Code Learning Roadmap
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**New to Claude Code?** This comprehensive guide will help you master Claude Code features progressively, starting with the simplest and most frequently used capabilities.
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---
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## 🎯 Learning Philosophy
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The folders in this repository are numbered in **recommended learning order** based on three key principles:
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1. **Dependencies** - Foundational concepts come first
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2. **Complexity** - Easier features before advanced ones
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3. **Frequency of Use** - Most common features taught early
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This approach ensures you build a solid foundation while gaining immediate productivity benefits.
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---
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## 🗺️ Your Learning Path
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```mermaid
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graph TD
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A[1. Slash Commands<br/>⭐ START HERE] --> B[2. Memory<br/>Essential Foundation]
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B --> C[3. Skills<br/>Auto-invoked Capabilities]
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C --> D[4. Subagents<br/>Task Delegation]
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D --> E[5. MCP<br/>External Integration]
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E --> F[6. Hooks<br/>Event Automation]
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F --> G[7. Plugins<br/>Bundled Solutions]
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G --> H[8. Checkpoints<br/>Safe Experimentation]
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H --> I[9. Advanced Features<br/>Power User Tools]
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I --> J[10. CLI Reference<br/>Command Mastery]
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style A fill:#90EE90
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style B fill:#87CEEB
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style C fill:#87CEEB
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style D fill:#FFD700
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style E fill:#FFD700
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style F fill:#FFA500
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style G fill:#FF6347
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style H fill:#FF6347
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style I fill:#8B0000,color:#fff
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style J fill:#87CEEB
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```
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**Color Legend:**
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- 🟢 Green: Beginner - Start here!
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- 🔵 Light Blue: Beginner+ - Essential foundations
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- 🟡 Gold: Intermediate - Common usage
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- 🟠 Orange: Intermediate-Advanced - Specialized
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- 🔴 Red: Advanced - Power user features
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- 🔴 Dark Red: Most Advanced - Expert territory
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---
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## 📊 Complete Roadmap Table
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| Step | Feature | Complexity | Time | Dependencies | Why Learn This | Key Benefits |
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|------|---------|-----------|------|--------------|----------------|--------------|
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| **1** | [Slash Commands](01-slash-commands/) | ⭐ Beginner | 30 min | None | Quick productivity wins | Instant automation, team standards |
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| **2** | [Memory](02-memory/) | ⭐⭐ Beginner+ | 45 min | None | Essential for all features | Persistent context, preferences |
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| **3** | [Skills](03-skills/) | ⭐⭐ Intermediate | 1 hour | Slash Commands | Automatic expertise | Reusable capabilities, consistency |
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| **4** | [Subagents](04-subagents/) | ⭐⭐⭐ Intermediate+ | 1.5 hours | Memory, Commands | Complex task handling | Delegation, specialized expertise |
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| **5** | [MCP](05-mcp/) | ⭐⭐⭐ Intermediate+ | 1 hour | Configuration | Live data access | Real-time integration, APIs |
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| **6** | [Hooks](06-hooks/) | ⭐⭐ Intermediate | 1 hour | Tools, Commands | Workflow automation | Validation, quality gates |
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| **7** | [Plugins](07-plugins/) | ⭐⭐⭐⭐ Advanced | 2 hours | All previous | Complete solutions | Team onboarding, distribution |
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| **8** | [Checkpoints](08-checkpoints/) | ⭐⭐ Intermediate | 45 min | Session management | Safe exploration | Experimentation, recovery |
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| **9** | [Advanced Features](09-advanced-features/) | ⭐⭐⭐⭐⭐ Advanced | 2-3 hours | All previous | Power user tools | Planning, headless, permissions |
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| **10** | [CLI Reference](10-cli/) | ⭐⭐ Beginner+ | 1 hour | None | CLI mastery | Scripting, CI/CD, automation |
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**Total Learning Time**: ~11-13 hours (spread across 4-5 weeks recommended)
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---
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## 🎯 Learning Milestones
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### Milestone 1: Essential Productivity (Week 1)
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**Topics**: Slash Commands + Memory
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**Time**: 1-2 hours
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**Complexity**: ⭐ Beginner
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**Goal**: Immediate productivity boost with custom commands and persistent context
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#### What You'll Achieve
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✅ Create custom slash commands for repetitive tasks
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✅ Set up project memory for team standards
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✅ Configure personal preferences
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✅ Understand how Claude loads context automatically
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#### Hands-on Exercises
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```bash
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# Exercise 1: Install your first slash command
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mkdir -p .claude/commands
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cp 01-slash-commands/optimize.md .claude/commands/
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# Exercise 2: Create project memory
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cp 02-memory/project-CLAUDE.md ./CLAUDE.md
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# Exercise 3: Try it out
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# In Claude Code, type: /optimize
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```
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#### Success Criteria
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- [ ] Successfully invoke `/optimize` command
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- [ ] Claude remembers your project standards from CLAUDE.md
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- [ ] You understand when to use slash commands vs. memory
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#### Next Steps
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Once comfortable, read:
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- [01-slash-commands/README.md](01-slash-commands/README.md)
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- [02-memory/README.md](02-memory/README.md)
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---
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### Milestone 2: Automation (Week 2)
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**Topics**: Skills + Hooks
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**Time**: 2-3 hours
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**Complexity**: ⭐⭐ Intermediate
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**Goal**: Automate common workflows and quality checks
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#### What You'll Achieve
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✅ Auto-invoke specialized capabilities
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✅ Set up event-driven automation
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✅ Enforce code quality standards
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✅ Create custom hooks for your workflow
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#### Hands-on Exercises
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```bash
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# Exercise 1: Install a skill
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cp -r 03-skills/code-review ~/.claude/skills/
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# Exercise 2: Set up hooks
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mkdir -p ~/.claude/hooks
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cp 06-hooks/pre-commit.sh ~/.claude/hooks/
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chmod +x ~/.claude/hooks/pre-commit.sh
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# Exercise 3: Configure hooks in settings
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# Add to ~/.claude/config.json:
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{
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"hooks": {
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"PreCommit": "~/.claude/hooks/pre-commit.sh"
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}
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}
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```
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#### Success Criteria
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- [ ] Code review skill automatically invoked when relevant
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- [ ] Pre-commit hook runs before git commits
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- [ ] You understand skill auto-invocation vs. hook triggers
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#### Next Steps
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- Create your own custom skill
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- Set up additional hooks for your workflow
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- Read: [03-skills/README.md](03-skills/README.md)
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- Read: [06-hooks/README.md](06-hooks/README.md)
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---
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### Milestone 3: Advanced Integration (Week 3-4)
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**Topics**: Subagents + MCP + Plugins
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**Time**: 4-5 hours
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**Complexity**: ⭐⭐⭐ Intermediate-Advanced
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**Goal**: Integrate external services and delegate complex tasks
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#### What You'll Achieve
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✅ Delegate work to specialized AI agents
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✅ Access live data from GitHub, databases, etc.
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✅ Install complete bundled solutions
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✅ Understand when to use each integration type
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#### Hands-on Exercises
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```bash
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# Exercise 1: Set up GitHub MCP
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export GITHUB_TOKEN="your_github_token"
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cp 05-mcp/github-mcp.json ~/.claude/mcp.json
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# Exercise 2: Test MCP integration
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# In Claude Code: /mcp__github__list_prs
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# Exercise 3: Install subagents
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mkdir -p .claude/agents
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cp 04-subagents/*.md .claude/agents/
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# Exercise 4: Install a complete plugin
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# In Claude Code: /plugin install pr-review
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```
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#### Success Criteria
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- [ ] Successfully query GitHub data via MCP
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- [ ] Claude delegates complex tasks to subagents
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- [ ] You've installed and used a plugin
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- [ ] You understand the difference between MCP, subagents, and plugins
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#### Integration Exercise
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Try this complete workflow:
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1. Use MCP to fetch a GitHub PR
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2. Let Claude delegate review to code-reviewer subagent
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3. Use hooks to run tests automatically
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4. See how the plugin bundles everything together
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#### Next Steps
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- Set up additional MCP servers (database, Slack, etc.)
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- Create custom subagents for your domain
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- Read: [04-subagents/README.md](04-subagents/README.md)
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- Read: [05-mcp/README.md](05-mcp/README.md)
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- Read: [07-plugins/README.md](07-plugins/README.md)
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---
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### Milestone 4: Power User (Week 5+)
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**Topics**: Checkpoints + Advanced Features
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**Time**: 3-4 hours
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**Complexity**: ⭐⭐⭐⭐⭐ Advanced
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**Goal**: Master advanced workflows and experimentation
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#### What You'll Achieve
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✅ Safe experimentation with checkpoints
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✅ Planning mode for complex features
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✅ Headless mode for CI/CD
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✅ Fine-grained permission control
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✅ Background task management
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#### Hands-on Exercises
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```bash
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# Exercise 1: Try checkpoint workflow
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# In Claude Code:
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/checkpoint save "Before experiment"
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# ... make experimental changes ...
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/checkpoint rewind "Before experiment"
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# Exercise 2: Use planning mode
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/plan Implement user authentication system
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# Exercise 3: Try headless mode
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claude-code --headless --task "Run all tests and generate report"
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# Exercise 4: Configure advanced features
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# See 09-advanced-features/config-examples.json
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```
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#### Success Criteria
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- [ ] Created and reverted to a checkpoint
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- [ ] Used planning mode for a complex feature
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- [ ] Ran Claude Code in headless mode
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- [ ] Configured permission modes
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- [ ] Used background tasks for long operations
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#### Advanced Exercise
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Complete this end-to-end workflow:
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1. Create checkpoint "Clean state"
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2. Use planning mode to design a feature
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3. Implement with subagent delegation
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4. Run tests in background
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5. If tests fail, rewind to checkpoint
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6. Try alternative approach
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7. Use headless mode in CI/CD
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#### Next Steps
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- Set up CI/CD integration
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- Create custom configuration for your team
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- Read: [08-checkpoints/README.md](08-checkpoints/README.md)
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- Read: [09-advanced-features/README.md](09-advanced-features/README.md)
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---
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### Milestone 5: CLI Mastery (Anytime)
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**Topics**: CLI Reference
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**Time**: 1 hour
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**Complexity**: ⭐⭐ Beginner+
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**Goal**: Master command-line usage for scripting and automation
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#### What You'll Achieve
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✅ Understand all CLI commands and flags
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✅ Use print mode for scripting
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✅ Integrate Claude Code into CI/CD pipelines
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✅ Process files and logs via piping
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✅ Configure custom agents via CLI
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#### Hands-on Exercises
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```bash
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# Exercise 1: Interactive vs Print mode
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claude "explain this project" # Interactive
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claude -p "explain this function" # Print mode
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# Exercise 2: Process file content
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cat error.log | claude -p "explain this error"
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# Exercise 3: JSON output for scripts
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claude -p --output-format json "list all functions"
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# Exercise 4: Session management
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claude -r "feature-auth" "continue implementation"
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# Exercise 5: CI/CD integration
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claude -p --max-turns 3 --output-format json "review code"
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```
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#### Success Criteria
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- [ ] Used print mode for non-interactive queries
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- [ ] Piped file content to Claude for analysis
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- [ ] Generated JSON output for scripting
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- [ ] Resumed a previous session
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- [ ] Understood permission and tool flags
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#### CLI Integration Exercise
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Create a simple CI/CD script:
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1. Use `claude -p` to review changed files
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2. Output results as JSON
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3. Process with `jq` for specific issues
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4. Integrate into GitHub Actions workflow
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#### Next Steps
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- Create shell aliases for common commands
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- Set up batch processing scripts
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- Read: [10-cli/README.md](10-cli/README.md)
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---
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## ⚡ Quick Start Paths
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### If You Only Have 15 Minutes
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**Goal**: Get your first win
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1. Copy one slash command: `cp 01-slash-commands/optimize.md .claude/commands/`
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2. Try it in Claude Code: `/optimize`
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3. Read: [01-slash-commands/README.md](01-slash-commands/README.md)
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**Outcome**: You'll have a working slash command and understand the basics
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---
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### If You Have 1 Hour
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**Goal**: Set up essential productivity tools
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1. **Slash commands** (15 min): Copy and test `/optimize` and `/pr`
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2. **Project memory** (15 min): Create CLAUDE.md with your project standards
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3. **Install a skill** (15 min): Set up code-review skill
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4. **Try them together** (15 min): See how they work in harmony
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**Outcome**: Basic productivity boost with commands, memory, and auto-skills
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---
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### If You Have a Weekend
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**Goal**: Become proficient with most features
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**Saturday Morning** (3 hours):
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- Complete Milestone 1: Slash Commands + Memory
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- Complete Milestone 2: Skills + Hooks
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**Saturday Afternoon** (3 hours):
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- Complete Milestone 3: Subagents + MCP
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- Install and explore plugins
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**Sunday** (4 hours):
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- Complete Milestone 4: Checkpoints + Advanced Features
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- Build a custom plugin for your team
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- Set up complete CI/CD workflow
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**Outcome**: You'll be a Claude Code power user ready to train others
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---
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## 💡 Learning Tips
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### ✅ Do
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- **Follow the numbered order** (01 → 02 → 03...)
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- **Complete hands-on exercises** for each topic
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- **Start simple** and add complexity gradually
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- **Test each feature** before moving to the next
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- **Take notes** on what works for your workflow
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- **Refer back** to earlier concepts as you learn advanced topics
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- **Experiment safely** using checkpoints
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- **Share knowledge** with your team
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### ❌ Don't
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- **Skip directly to advanced features** - you'll miss foundations
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- **Try to learn everything at once** - it's overwhelming
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- **Copy configurations without understanding them** - you won't know how to debug
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- **Forget to test** - always verify features work
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- **Rush through milestones** - take time to understand
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- **Ignore the documentation** - each README has valuable details
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- **Work in isolation** - discuss with teammates
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---
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## 🎓 Learning Styles
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### Visual Learners
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- Study the mermaid diagrams in each README
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- Watch the command execution flow
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- Draw your own workflow diagrams
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- Use the visual learning path above
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### Hands-on Learners
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- Complete every hands-on exercise
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- Experiment with variations
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- Break things and fix them
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- Create your own examples
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### Reading Learners
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- Read each README thoroughly
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- Study the code examples
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- Review the comparison tables
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- Read the blog posts linked in resources
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### Social Learners
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- Set up pair programming sessions
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- Teach concepts to teammates
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- Join Claude Code community discussions
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- Share your custom configurations
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---
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## 📈 Progress Tracking
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Use this checklist to track your progress:
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### Week 1: Foundations
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- [ ] Completed 01-slash-commands
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- [ ] Completed 02-memory
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- [ ] Created first custom slash command
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- [ ] Set up project memory
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- [ ] Milestone 1 achieved
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### Week 2: Automation
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- [ ] Completed 03-skills
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- [ ] Completed 06-hooks
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- [ ] Installed first skill
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- [ ] Set up pre-commit hook
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- [ ] Milestone 2 achieved
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### Week 3-4: Integration
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- [ ] Completed 04-subagents
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- [ ] Completed 05-mcp
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- [ ] Completed 07-plugins
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- [ ] Connected GitHub MCP
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- [ ] Created custom subagent
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- [ ] Installed plugin
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- [ ] Milestone 3 achieved
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### Week 5+: Mastery
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- [ ] Completed 08-checkpoints
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- [ ] Completed 09-advanced-features
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- [ ] Completed 10-cli
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- [ ] Used planning mode successfully
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- [ ] Set up headless CI/CD
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- [ ] Created team plugin
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- [ ] Used CLI for scripting and automation
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- [ ] Milestone 4 & 5 achieved
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---
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## 🆘 Common Learning Challenges
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### Challenge 1: "Too many concepts at once"
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**Solution**: Focus on one milestone at a time. Complete all exercises before moving forward.
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### Challenge 2: "Don't know which feature to use when"
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**Solution**: Refer to the [Use Case Matrix](README.md#use-case-matrix) in the main README.
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### Challenge 3: "Configuration not working"
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**Solution**: Check the [Troubleshooting](README.md#troubleshooting) section and verify file locations.
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### Challenge 4: "Concepts seem to overlap"
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**Solution**: Review the [Feature Comparison](README.md#feature-comparison) table to understand differences.
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### Challenge 5: "Hard to remember everything"
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**Solution**: Create your own cheat sheet. Use checkpoints to experiment safely.
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---
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## 🎯 What's Next After Completion?
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Once you've completed all milestones:
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1. **Create team documentation** - Document your team's Claude Code setup
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2. **Build custom plugins** - Package your team's workflows
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3. **Contribute examples** - Share with the community
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4. **Mentor others** - Help teammates learn
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5. **Optimize workflows** - Continuously improve based on usage
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6. **Stay updated** - Follow Claude Code releases and new features
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---
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## 📚 Additional Resources
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### Official Documentation
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- [Claude Code Documentation](https://docs.claude.com/en/docs/claude-code)
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- [MCP Protocol Specification](https://modelcontextprotocol.io)
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- [Plugin Marketplace](https://plugins.claude.com)
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### Blog Posts
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- [Discovering Claude Code Slash Commands](https://medium.com/@luongnv89/discovering-claude-code-slash-commands-cdc17f0dfb29)
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### Community
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- [Claude Code Examples](https://github.com/anthropic/claude-examples)
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- [MCP Servers Repository](https://github.com/modelcontextprotocol/servers)
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---
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## 💬 Feedback & Support
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- **Found an issue?** Create an issue in the repository
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- **Have a suggestion?** Submit a pull request
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- **Need help?** Check the documentation or ask the community
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---
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**Last Updated**: December 2025
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**Maintained by**: Claude How-To Contributors
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**License**: Educational purposes, free to use and adapt
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[← Back to Main README](README.md)
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