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Introduction

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

Today I want to take on the "unsolved problem" I left dangling at the end of the previous post: the attention competition problem between skills. When you end up with 10 or 20 skills, are they really firing correctly? Did improving one skill's description silently hurt another one? I built a skill that audits this at the portfolio level automatically: skill-auditor (currently Claude Code only).

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

Today I want to share the story of a speech recognition model I built from scratch that outputs only hiragana. Why hiragana instead of mixed kanji-and-kana text, why Whisper didn't work for me, and how combining it with an LLM produces a practical voice dialogue system: I'll walk through the background, the implementation, and the evaluation results in one go.

Watch on YouTube / GitHub / HuggingFace Model / Spaces Demo

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

Today I want to summarize, using the actual production of spark-banana as an example, what I learned about making product promo videos with Remotion and how I packaged that knowledge into a Skill.

Watch on YouTube / GitHub

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

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.