iOS Developer Shares Claude Code Best Practices After Shipping Multiple Apps

Practical Guidelines for AI-Assisted iOS Development

A developer who has shipped multiple iOS apps using Claude Code shares specific practices learned from experience. The key insight: AI doesn't automatically enforce good practices—it gives you what you ask for, and the speed that makes AI-assisted coding powerful also lets technical debt pile up silently.

Security and Environment Management

• Never hardcode secrets or commit them to git
• Properly separate dev and prod environments with different API tokens
• Validate input on the server side—never trust what the client sends
• Set CORS to specific origins, not * just to fix errors temporarily

Observability and Infrastructure

• Implement crash reporting from day one
• Use actual logging that persists somewhere, not just terminal history
• Create a simple /health endpoint to check service status
• Set up a real staging environment that mirrors production
• Document how to run and deploy things to avoid single-point knowledge

Code Organization and Testing

• Wrap external services properly with clean service layers
• Add rate limiting on auth and write operations proactively
• Break up massive view controllers early instead of letting them own entire screens
• Version database schema changes through proper migrations
• Test unhappy paths—network failures, unexpected API responses, edge cases
• Test backup restores before emergencies occur

Process and Mindset

• Set up CI/CD early with automatic testing and deploying
• Resist the "I'll clean this up later" mentality—fix hacky code immediately or create tickets with deadlines
• Use proper feature flag systems instead of commenting code in and out
• Store everything in UTC, convert to local time only on display
• Treat Claude Code as a brilliant junior developer who needs guidance on architecture, security, and maintainability

The developer suggests including these practices in a CLAUDE.md file or initial prompt to align Claude's suggestions around these principles from the start of a project.