You are using Claude Code to accelerate software development. Your team uses it for code generation, refactoring, debugging, and documentation. You need to integrate it into your development workflow with custom slash commands, CLAUDE.md configurations, and understand when to use plan mode vs direct execution.

You’re implementing a new payment processing module that must follow your project’s established patterns for database transactions, error handling, and audit logging. You’ve identified three existing modules that exemplify these patterns: db_utils.py, error_handlers.py, and audit_logger.py. This is a one-off integration task – these patterns are well-documented in your team wiki and don’t need additional project-level documentation. What’s the most effective approach?