A solo developer used Claude Code, an AI coding agent by Anthropic, for 30 days to build production features, refactor code, debug issues, and write tests in a real codebase. Claude Code reads the entire codebase, asks clarifying questions, writes code with tests, and iterates until the implementation works. It excels at refactoring, greenfield features with clear specs, test writing, documentation, and boilerplate code generation. However, it struggles with understanding implicit business logic, debugging subtle logic errors, performance optimization, and architecture decisions. The developer found that writing detailed micro-specs improved accuracy from 70% to 95%. The AI saved about 15 hours in the first week but introduced a mental cost in reviewing AI-generated code. The recommended workflow is to use Claude Code for morning sprints to generate code and manual coding in the afternoon for review and edge cases. The tool costs $200/month for unlimited usage and is best suited for solo developers or teams with strong code review cultures.

May 31, 2026, 9:00 PM