AI Coding and Review Tools I Use and How I Use Them (2025-10-06)

With AI-powered development assistance now commonplace, numerous tools are available. This article introduces my specific approach to using AI coding and review tools as of October 6, 2025. From OpenAI Codex CLI, which plays a leading role in implementation, to Claude Code CLI, which understands the context of the entire project, and review agents on Pull Requests that ensure quality from multiple perspectives, I've compiled my current best practices.

Supercharge Development with AI! Refactoring Towards AI-Friendly Code

AI coding tools are now indispensable partners in development. The refactoring they frequently suggest actually holds hidden hints for supercharging your development. Why is writing code that AI prefers the key to future team development?

The AI Era Trap 'Workslop': How to Ensure Quality in AI Coding vs AI Code Review?

AI coding assistance tools are becoming indispensable in development environments. However, low-quality code and review comments generated by AI, so-called 'workslop,' are beginning to emerge as new productivity impediments. What do we need to maximize the benefits of AI while avoiding quality pitfalls?

Speaking at JP_Stripes Connect 2026 — The Reality of Building and Billing AI Products, in Yokohama

On August 1, 2026, I attended JP_Stripes Connect 2026 in person at Iwasaki Gakuen Information Technology College in Yokohama, and spoke at the track session 'The Reality of Building and Billing AI Products.' This post summarizes the topics I covered (building AI products in production, and designing token-based and usage-based billing on Stripe), along with the full list of URLs I referenced on stage.

JP_Stripes Fukuoka Vol.12 Presentation Report ~ Pioneering Stripe API Migration with Speculative Implementation × AI

I recently presented at JP_Stripes Fukuoka Vol.12 with the title 'Pioneering Stripe API Migration with Speculative Implementation × AI.' I shared a case study on how we visualized Stripe API migration risks using AI and efficiently promoted the project in a safe manner. This article shares the content of that presentation.

Continuing Product Development with a User-First Perspective

I believe that developing with a user-first perspective, rather than prioritizing only software engineers' convenience, is an important trade-off in software development.