Talk slides about my first experience with Grok Bot, including radio-style audio explanations of articles and an attempt to connect to Codex on my home Mac Studio through Tailscale.

Slides

2026.10.03

Sites can now create MCP! I also looked into how it works!

Lightning talk slides from Codex Catchup #1 OpenAI DevDay 2026.

Slides

2026.09.15

Reducing AI Token Usage Depends on Task Clarity

Why writing down the steps and refining tasks with AI helps reduce token usage

Slides Connpass

Personal Project

Task Management App

FocusOne

Stop getting lost in endless to-do lists. A simple task board that helps you focus on the one thing that matters right now.

AI Chatbot

Lovady

An AI counselor trained on relationship guides that listens to your concerns and helps you work through them.

Labs

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AI Experiment

Compare answers (Japanese)How it works

Oogiri Bench

Reveal each AI's best joke, then discover who wrote it.

Writing Tool

Try it (Japanese)How it works

Brand Check

Compare independent Decisions and Jev evaluations against transparent brand criteria.

Books by Sunagaku

Books

Books written by Sunagaku.

Codexではじめるエージェンティックコーディング――AIエージェントによる自律的システム開発ガイド

鈴木章太郎、スナガク（馬場俊輔）、中村彰宏、びーぐる（藤原祥司）、河村大輔

A practical, step-by-step guide to agentic coding with Codex, covering core workflows, task design with ChatGPT, autonomous development practices, team adoption, and rollout in SIer and enterprise environments.

Who it’s for

Engineers interested in AI and agentic coding, and development leaders introducing AI across their teams.

Paperback on Amazon.co.jp(Ad)Kindle on Amazon.co.jp(Ad)