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Building a Lightning-Fast UI Tweaking Tool with Codex Spark and nanobanana

by 逆瀬川ちゃん

2026-02-27

6 min read

spark-banana Codex Spark nanobanana Gemini UI React

Hi there! This is Sakasegawa-chan (@gyakuse)!

Today I'd like to introduce spark-banana, a tool I built for blazing-fast UI tweaking.

Watch on YouTube

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Development and Organization in a New Era

by 逆瀬川ちゃん

2026-02-24

8 min read

Coding Agent Claude Code Organization Productivity Team Design

Hi there! This is Sakasegawa (@gyakuse)!

Today I want to think through "how development works" and "what organizations should look like" in an era where you're developing alongside a Coding Agent, based on my own experience.

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Skill Design for Keeping Humans Out of the Agent Workflow Bottleneck

by 逆瀬川ちゃん

2026-02-17

7 min read

Claude Code Skills Agent Automation chrome MCP Ralph loop

Hi there! This is Sakasegawa (@gyakuse)!

Today I want to talk about the problem of humans becoming the bottleneck in Coding Agent workflows, and how I solved it with a Claude Code Skill.

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I Built a Mechanism to Grow AGENTS.md Automatically

by 逆瀬川ちゃん

2026-02-15

6 min read

Git AGENTS.md Claude Code Coding Agent

Hi there! This is Sakasegawa (@gyakuse)!

Today I want to talk about "I want AGENTS.md to grow on its own." The thing I built is public as agents-md-generator.

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Building a Prompt Injection Defense Library for OpenClaw Bots

by 逆瀬川ちゃん

2026-02-15

10 min read

TypeScript OpenClaw Cerebras

Hi there! This is Sakasegawa (@gyakuse)!

Today I want to walk through how my friend's Discord bot had its IP leaked through prompt injection, and how that pushed me to build a three-layer defense library called "openclaw-defender".

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