Welcome

This is the documentation hub for the custom Claude Code skills and Gemini gems I build and use every day. It’s the “how to use” companion to the skills repo — written by hand, not auto-generated from SKILL.md files.

What’s here

• 7 Claude Code skills — installable packages that extend Claude Code with domain-specific workflows (AWS design, cost estimation, Bedrock ops, release automation, and more)
• 3 Gemini gems — paste-in-Gemini system prompts for morning briefings, Japanese business communication, and tech article thumbnails
• Copy-paste install commands — for gh skill, npx skills, and pnpm dlx skills
• Bilingual content — every page is available in English and 日本語

Where to start

Install a skill How the CLI-based install works, and which package manager to pick.

Use a Gemini gem Gems aren't installed via CLI — here's the paste-in-Gemini flow.

Conventions How I use AskUserQuestion, safety rails, and the Japanese output option across every skill.

Browse all skills The full catalog, grouped by AWS and Workflows.

Philosophy

The skills and gems here share a few principles:

• Confirm before touching remote state — every destructive step goes through AskUserQuestion, never a plain-text prompt
• Never guess, always verify — the AWS skills look up prices and icons at runtime, never from memory
• Fail loudly on identity mismatch — when an operation is scoped to “my account”, I want a loud error if the active AWS profile isn’t mine
• Bilingual by default — English and 日本語 are first-class everywhere it makes sense

If those match how you want to work, you’ll get along with these skills. If not, they probably won’t feel worth the install.