Soya Shintani

AI Stack

Context Engineering: The 2026 Skill That’s Quietly Replacing Prompt Engineering

By S | AI Director & Freelance Creator, rural Japan
Claude

Claude Code Became the #1 AI Coding Tool in 8 Months. Here’s Why I’m Not Surprised.

By S | AI Director & Freelance Creator, rural Japan
Claude

Claude Opus 4.6 Engineering Performance: Technical Validation and Implementation Strategy

On February 5, 2026, Anthropic released Claude Opus 4.6. Recording industry-leading scores on real-world benchmarks including…
AI Stack

What $75–$150 AI Sponsored Articles Actually Look Like — From a Creator Who’s Done Both

What $75–$150 AI Sponsored Articles Actually Look Like — From a Creator Who’s Done BothBy S | AI Director & Freelance Cr...
AI Stack

How I Built 3 Web Apps in 30 Days Using Only AI Tools — No Team, No Budget

By S | AI Director & Freelance Creator, rural Japan
Tool Reviews

I Used Claude Code, Cursor, and Codex for 30 Days as a Solo Dev. Here’s What Actually Matters.

By S | AI Director & Freelance Creator based in rural Japan
AI Stack

From $7 to $53,000: My AI-Powered Survival Strategy After Losing Everything

A shut-in’s transparent journey of using Vibe Coding and Generative AI to reclaim life from depression.
AI Stack

I Have 19 Unfinished GitHub Repositories. Here’s Why That’s the Point.

I don’t code. I vibe. And somewhere in that process, I accidentally started building a mental health app.
Tool Reviews

20 ChatGPT “Spells” That Actually Work in 2026 — A Thinking-Model-Era Prompting Guide

The old tricks stopped working. Here’s what replaced them.
AI Stack

I Tried to Do Everything. I Got Nothing Done.

Subtitle: How I learned that “doing less” is actually a strategy — even when you’re broke and depressed.