# About Yamadashy

> Who yamadashy (Kazuki Yamada) is — a compact profile card to load when an agent needs to know the author's identity, background, or work. Triggers on: 'who is yamadashy', 'who am I', 'about the author/maintainer', 'introduce yamadashy', or when a task needs the user's bio, main products, or links.

- Skill: `yamadashy/about-yamadashy` (Agent Skill)
- Install (CLI): `npx skillmds@latest add yamadashy/about-yamadashy`
- Raw SKILL.md: https://api.skillmd.com/api/skills/yamadashy/about-yamadashy/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: yamadashy (https://skillmd.com/u/yamadashy)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/yamadashy/about-yamadashy

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# About yamadashy

A one-glance profile card. Load it when a task needs to know who yamadashy is —
writing a bio, an intro, an author line, or grounding "who am I" questions.

## Profile

- **Name:** Kazuki Yamada (yamadashy)
- **Role:** Software developer, based in Tokyo, Japan (works at [COLOPL](https://github.com/colopl))
- **In one line:** Builds open-source developer tools — best known as the creator
  of [Repomix](https://github.com/yamadashy/repomix).

## Main products

- **[Repomix](https://github.com/yamadashy/repomix)** ([repomix.com](https://repomix.com)) —
  packs an entire repository into a single AI-friendly file for feeding
  codebases to LLMs. Flagship project.
- **[tech-blog-rss-feed](https://github.com/yamadashy/tech-blog-rss-feed)** —
  aggregated RSS feed of Japanese companies' tech blogs.
- **[slack-channels-grouping](https://github.com/yamadashy/slack-channels-grouping)** —
  auto-groups Slack channels by prefix for a cleaner sidebar.
- **[phpstan-friendly-formatter](https://github.com/yamadashy/phpstan-friendly-formatter)** —
  a more readable error formatter for PHPStan.
- **[pdfvision](https://github.com/yamadashy/pdfvision)** —
  a CLI that gives AI agents human-like PDF vision.

## Links

- Website: [yamadashy.dev](https://yamadashy.dev)
- GitHub: [github.com/yamadashy](https://github.com/yamadashy)
- X (Twitter): [@yamadashy](https://x.com/yamadashy)
- Zenn: [zenn.dev/yamadashy](https://zenn.dev/yamadashy)
- Qiita: [qiita.com/yamadashy](https://qiita.com/yamadashy)
- Speaker Deck: [speakerdeck.com/yamadashy](https://speakerdeck.com/yamadashy)
- npm: [npmjs.com/~yamadashy](https://www.npmjs.com/~yamadashy)
- Repomix: [repomix.com](https://repomix.com)