Software engineer in Kochi, Japan.
I work on systems that should keep making sense after they grow.
These days: AI coding agents, developer tools, and software that keeps working when no one is watching.
- Human ↔ software boundaries
- Tools that quietly change how work gets done
- Long-lived systems and low-maintenance products
- Reproducible experiments with coding agents
- Code — systems, experiments, and unfinished questions
- Notes — things that became clear enough to write down
- Archive — older attempts, kept where they landed
The opinions and projects shared here are my own.




