|| अलख निरंजन ||
कोई न जाये यहाँ से खाली हाथ, यहाँ बसते हैं सदगुरु नवनाथ।
देना हर काम में साथ सदगुरु नवनाथ.
Learning Objectives
By end of session, participants will be able to:
Understand what Claude Code is and how it works
Install and set up Claude Code on their machines
Use Claude Code effectively in their dev workflow
Leverage it for mobile app development tasks
Integrate with Git, IDEs, and CI/CD pipelines
Apply best practices for AI-assisted coding
Understand safety, security, and ethics
Recognize productivity gains for mobile development
Part 1
Introduction & Context
20–30 minutes

1.1 — What is Claude Code?

  • Definition: AI-powered agentic coding tool for terminal and IDE environments
  • Key concept: Claude Code understands your entire codebase
  • Available in: Terminal, VS Code, JetBrains IDEs, Desktop App, Browser, Chrome Extension
  • Main capability: Execute coding tasks through natural language commands

1.2 — The Evolution of Development

📜

Traditional Workflow

Manually write every line, repetitive boilerplate, sequential file-by-file editing

🤖

AI-Assisted Paradigm

Describe what you want, automated multi-file coordination, parallel execution

🏢

Real Impact

Majority of code at Anthropic now written by Claude Code — measurable ROI

1.3 — Core Philosophy

  • Human-centric design: Developers remain in full control
  • Transparency: All changes are visible and reviewable before commit
  • Integration: Works with existing tools and workflows
  • Safety first: Explicit permission required for file modifications and commands

1.4 — Why Claude Code for Mobile Developers?

  • Multi-file edits for complex mobile architectures
  • Cross-platform consistency (Android, iOS, React Native, Flutter)
  • Handling repetitive scaffolding and boilerplate
  • Integration with mobile development workflows
  • Testing and debugging support built-in
Part 2
Features & Capabilities
20–25 minutes

2.1 — Core Features

🔍

Code Understanding

Reads and analyzes entire codebase, maps dependencies, recognizes patterns

📁

Multi-File Operations

Create and edit files across entire codebase, maintain consistency, handle interdependencies

⚙️

Command Execution

Run tests, execute git operations, navigate CI/CD pipelines

💬

Natural Language

Describe what you want — "Build a login screen with validation" — no syntax needed

2.2 — Key Capabilities for Mobile Development

Feature Development

User: "Create a bottom navigation component with 4 tabs" Claude Code: Plans → Creates component → Adds styling → Writes tests

Bug Fixing

User: [Pastes error message] Claude Code: Traces issue → Identifies root cause → Implements fix → Runs tests

Git Workflow Integration

User: "Commit my changes with a descriptive message" Claude Code: Stages changes → Creates commit message → Opens PR if needed

2.3 — Integration Capabilities

  • MCP (Model Context Protocol): Connect to Google Drive, Jira, Slack, custom tools
  • CLAUDE.md: Project-specific instructions, guidelines, patterns — read every session
  • IDE Integration: VS Code inline diffs, JetBrains plugins, @-mentions
  • CI/CD: GitHub Actions, GitLab CI integration
Part 3
Installation & Setup
25–30 minutes

3.1 — Installation Methods

# macOS (Recommended) brew install anthropic/brew/claude-code # Windows (PowerShell — NOT CMD) irm https://install.anthropic.com | iex # Linux curl -sL https://install.anthropic.com | bash # Linux Package Managers sudo apt install claude-code # Debian/Ubuntu sudo dnf install claude-code # Fedora/RHEL apk add claude-code # Alpine

3.2 — First-Time Setup (4 Steps)

# Step 1: Navigate to project cd ~/path/to/your/mobile/app # Step 2: Start Claude Code claude # Step 3: Authenticate (browser opens automatically) # Step 4: Start coding! > What would you like me to do?

3.3 — VS Code & JetBrains Integration

  • VS Code: Extensions panel → Search "Claude Code" → Install
  • Features: Inline diffs, @-mentions, plan review, conversation history
  • JetBrains: IntelliJ IDEA, WebStorm, Android Studio, AppCode

3.4 — Troubleshooting Installation

  • Windows error "token '&&' invalid": You're in CMD — switch to PowerShell
  • macOS permission denied: Use nvm for Node.js installation
  • Auto-update: brew upgrade claude-code / winget upgrade Anthropic.ClaudeCode
Part 4
Hands-On Demonstrations
30–40 minutes

🎬 Demo 1 — Creating a New Feature

Scenario: Build a user profile screen for a React Native app

claude: Create a UserProfile screen with navigation, edit button, and profile image upload functionality

What Claude Code does: Plans approach → Creates multiple files → Implements state management → Adds navigation integration → Verifies implementation

🐛 Demo 2 — Debugging a Mobile App Issue

Scenario: App crashes when loading user data

Input: Error stack trace from crash logs. Process: Reads error → Traces codebase → Identifies root cause → Implements fix → Runs tests

⚡ Demo 3 — Refactoring for Performance

Scenario: Navigation animations are stuttering

claude: Analyze navigation performance and optimize the animation code for smoother 60 FPS

Identifies bottlenecks → Implements memoization → Adds lazy loading → Measures improvements

🌿 Demo 4 — Git Workflow Integration

claude: Commit my changes with a descriptive message claude: Create a feature branch for the payment module claude: Open a PR with my latest changes

No need to remember git syntax. Intelligent commit messages. Proper branch management.

Part 5
Best Practices & Advanced Usage
20–25 minutes

5.1 — Writing Effective Prompts

❌ Avoid
"Make it better"
"Fix this"
"Write code"
✓ Best Practice
"Create a button component that accepts label, onPress handler, and disabled state with proper accessibility"
  • Be specific about requirements and acceptance criteria
  • Mention constraints and design patterns to follow
  • Reference relevant files if needed
  • Include your tech stack details

5.2 — Using CLAUDE.md for Project Context

# CLAUDE.md Example ## Project Structure - /src/screens - React Native screens - /src/components - Reusable components - /src/services - API clients, utilities ## Stack - React Native 0.72+ · TypeScript · Redux · Jest ## Conventions - Components: PascalCase (UserProfile.tsx) - Functions: camelCase (fetchUserData) - Constants: UPPER_SNAKE_CASE (API_TIMEOUT) ## Standards - All code must be TypeScript (strict mode) - Tests required for all business logic - Accessibility: WCAG 2.1

5.3 — The Review-Before-Commit Flow

  • Step 1: Claude Code shows a plan first
  • Step 2: You review and approve or adjust
  • Step 3: Claude Code executes the changes
  • Step 4: You review the diffs and run tests
  • Step 5: You commit when satisfied — full control
Part 6
Mobile App Development Scenarios
15–20 minutes

📱 Scenario 1 — Building Authentication Flow

Login/signup screens, form validation, API integration, token management, Redux auth context, error handling, tests — all handled consistently in one command.

⏱ Traditional: 6–8 hours · With Claude Code: 20–30 min

💳 Scenario 2 — Payment Integration (Stripe/PayPal)

Set up SDK, create payment UI components, handle processing, error handling, receipt generation, test suite — all consistent and secure.

📱 Scenario 3 — Cross-Platform Consistency (iOS + Android)

claude: Review our navigation implementation and ensure it works consistently on both iOS and Android platforms

Scans platform-specific code → Identifies inconsistencies → Refactors for consistency → Tests on both platforms

⚡ Scenario 4 — Performance Optimization

claude: The app is slow when loading user lists with 50+ items. Implement virtual scrolling and optimize renders.

Result: Virtual scrolling, re-render optimization, unnecessary state updates removed, performance test suite added.

🔄 Scenario 5 — Migrating to TypeScript

claude: Gradually migrate our codebase to TypeScript, starting with the API service layer, then screens, then components

Structured migration path, maintains working state throughout, type safety gradually increases.

Part 7
Safety, Security & Ethics
15 minutes

7.1 — Code Ownership & Control

You own all generated code — no licensing conflicts
Code stays in your environment — not sent to external servers
Complete transparency — all changes are visible before commit
Full review capability — you approve every diff

7.3 — API Keys and Secrets

❌ Never
const API_KEY = "sk_live_abc123xyz";
✓ Always
const API_KEY = process.env.STRIPE_API_KEY;

Claude Code understands this pattern and will always recommend environment variables, secret managers, and proper configuration management.

7.5 — Ethical Guidelines

  • Don't use Claude Code to bypass security reviews
  • Maintain your code quality standards — AI doesn't lower the bar
  • Document AI-generated code clearly when needed
  • Keep human oversight strong — you remain accountable
  • Use for productivity, not to cut corners
Part 8
Workflows & Productivity Gains
10–15 minutes

8.2 — Realistic Productivity Gains Over Time

Day 1 (Learning curve)10–15%
Week 1 (Getting comfortable)30–40%
Month 1 (Mastered)50–70%
Month 3+ (Advanced usage)60–80%

8.1 — Typical Developer Workflow

1. Plan feature (5 min) 2. Brief Claude Code (2 min) 3. Review & approve plan (5 min) 4. Claude executes (5–15 min) 5. Review changes (10 min) 6. Iterate if needed (5–10 min) 7. Commit & deploy (2 min) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Total: 34–49 min vs. 2–4 hours manually
Part 9
Q&A and Hands-On Lab
20–30 minutes

9.1 — Common Questions

  • Will Claude Code replace developers? No — it handles routine coding; developers handle architecture, decisions, oversight.
  • Can it handle our specific tech stack? Yes — works with any language/framework. Context helps it understand your patterns.
  • Is generated code production-ready? After review, yes — always run your quality checks (tests, lint, code review).
  • Can it work offline? No — requires internet connection to Claude API.
  • How much does it cost? Claude Pro ($20/month) or Anthropic Console API key (pay per token).

9.2 — Hands-On Lab Exercises

# Exercise 1: Install & First Run (10 min) claude → "What does this project do?" # Exercise 2: Create Component (15 min) "Create a reusable Card component with title, description, onPress, and optional backgroundColor" # Exercise 3: Fix a Bug (15 min) [Paste error] → "Fix this bug that crashes the app" # Exercise 4: Refactor Code (15 min) "Refactor this component to use hooks, extract logic to custom hook, add memoization"
Part 10
Next Steps & Resources
10 minutes

10.1 — Action Items After Training

This Week
☐ Install Claude Code on all machines
☐ Create CLAUDE.md for your project
☐ Try it on 1–2 small tasks
☐ Share experience with team
This Month
☐ Use for all new features
☐ Build team best practices doc
☐ Measure productivity gains
☐ Explore MCP integrations

10.2 — Official Resources

  • Documentation: https://code.claude.com/docs
  • GitHub: https://github.com/anthropics/claude-code
  • Community: Reddit r/ClaudeAI (535k+ members)
  • API Docs: https://docs.anthropic.com
📋 Quick Reference Guide → ❓ FAQ & Troubleshooting 🖼️ Presentation Slides