Software Design February 2026 Contribution
Feature 1: Vibe Coding Complete Guide, Chapter 1
Projects
Selected work, articles, talks, and software
Books
Overview
Contributed to Chapter 1, “Getting Started with Vibe Coding,” in Feature 1: Vibe Coding Complete Guide.
It explains the basics of Vibe Coding, how to approach it, and what it can change in practice through concrete examples in accessible language.
Software Design February 2026 Issue
https://gihyo.jp/magazine/SD/archive/2026/202602
Software Design February 2026 Issue | Kindle Store | Amazon
https://amzn.to/3NBD7V7
Talks
How to Keep Claude Code Honest in Tests
Claude Code Meetup Tokyo #aimeetup
Overview
Knowledge-sharing slides for Claude Code Meetup Tokyo (#aimeetup) held on December 22, 2025.
Proposes ideas for using Rules and Skills to prevent Claude Code from writing sloppy tests.
How to Keep Claude Code Honest in Tests
https://speakerdeck.com/beagle_dog_inu/claude-codenitesutodele-wosasenaiji-shu
GitHub
cxreset
Script that shows Codex usage and reset time
ccclog
Website for browsing Claude Code / Codex CHANGELOGs
Overview
A static web app for browsing Claude Code and Codex change histories in side-by-side Japanese and English tables.
Supports automatic fetching, update dates, monthly update counts, and content search.
Claude Code CHANGELOG Viewer
https://beagleworks.github.io/ccclog
ccclog - GitHub
https://github.com/beagleworks/ccclog
Preposition Quiz
Quiz app for learning English prepositions
ccreset
Script that shows Claude Code usage and reset time
Setsuna
Chat-room style text sharing site
iCUE Restarter
Improves the behavior of keyboard control software
Articles
How Boris Explained Using Claude Code in X Replies
50+ Likes article
Overview
An article collecting especially useful points from Boris Cherny’s replies on X about how to use Claude Code.
Received more than 50 Likes.
How Boris Explained Using Claude Code in X Replies
https://zenn.dev/beagle/articles/_0019_keypoints_from_responses_of_boris
AI Tool Usage and Impressions: End-of-2025 Edition
Zenn badge-winning article
Overview
An article summarizing the AI-related subscriptions I was using at the end of 2025 and my impressions of them.
Earned one Zenn badge.
AI Tool Usage and Impressions: End-of-2025 Edition
https://zenn.dev/beagle/articles/_0018_2025_12_my_subscriptions_to_ai_tools
Looking Back Again at SDD and Specs
#1 trending / 100+ Likes
Overview
An article revisiting SDD (spec-driven development) and specs.
Reached #1 in Zenn’s Ideas trending ranking.
Received more than 100 Likes.
Looking Back Again at SDD and Specs
https://zenn.dev/beagle/articles/fd60745bc54de1
Trying Claude Code on the web
Trending article
Overview
An article summarizing the basics of Claude Code on the web.
Reached #6 in Zenn’s Tech trending ranking.
Earned two Zenn badges.
Trying Claude Code on the web
https://zenn.dev/beagle/articles/bc6ef88dd68615
Trying Out GitHub's Spec Kit
100+ Likes article
Overview
An article about trying GitHub Spec Kit.
Received more than 100 Likes.
Trying Out GitHub's Spec Kit
https://zenn.dev/beagle/articles/7976e6ac40c762
Trying Qoder, Alibaba's AI IDE
Trending article
Overview
An article summarizing Qoder.
Reached #10 in Zenn’s Tech trending ranking.
Earned one Zenn badge.
Trying Qoder, Alibaba's AI IDE
https://zenn.dev/beagle/articles/52fb87f10d537f
Recent Developments Around Kiro After Its Subscription Launch
Zenn #1 trending article
Overview
An article covering Kiro’s updates and its subscription model.
Reached #1 in Zenn’s Ideas trending ranking.
Recent Developments Around Kiro After Its Subscription Launch
https://zenn.dev/beagle/articles/5360946ada5607
Trying Spec-Driven Development with Free GPT-5 for a Limited Time
Trending article
Overview
An article about trying spec-driven development while GPT-5 was temporarily available for free in several coding tools.
Reached #2 in Zenn’s Ideas trending ranking.
Trying Spec-Driven Development with Free GPT-5 for a Limited Time
https://zenn.dev/beagle/articles/99e0a0f3f0db4b
A Quick Look Back at Kiro and Spec-Driven Development
Trending article
Overview
An article summarizing Kiro and spec-driven development.
Reached #3 in Zenn’s Ideas trending ranking.
A Quick Look Back at Kiro and Spec-Driven Development
https://zenn.dev/beagle/articles/1dea6ff60b1143