Aritomo Fukuda

When Your AI Pair Programmer Skips the Slow Step

TL;DR I asked Claude to dedupe some database rows. It chose the wrong rows to keep, and 16 features quietly disappeared from production…

Pair-Programming With Claude: 10 Rules From 14 Hallucinations in a Week

Building four SaaS apps in 8 weeks with Claude. These 14 hallucinations taught me 10 rules that kept the work from falling apart.

I Listed on 30+ Directories. My DR Climbed to 21. Then Stopped

TL;DR: I followed every “list on these directories for DR growth” tweet I could find. Submitted to 30+ sites over three weeks. My Domain…

Claude Opus 4.8 Shipped. Here’s What Actually Changed for a Solo 4-SaaS Build — and What Didn’t

Claude Sonnet 5 Costs 40% Less Than Opus 4.8. Your Invoice Might Not

A field guide to Claude Sonnet 5 — the benchmarks, the real cost math, and the three gotchas that turn a one-line model swap into an…

Which Claude Should You Actually Ship With? A Solo Builder’s Model Map

The lineup shifts every few weeks; the rule for picking doesn’t. Haiku, Sonnet, Opus, Fable — which seat is each one for, and where the…