How to Write a Claude Code Skill From Scratch (With a Real Example)
Step-by-step guide to writing your first Claude Code skill: the SKILL.md format, frontmatter fields, when to use project vs user scope, and a complete /review skill you can copy.
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Field notes on AI-assisted development.
How Claude Code actually works under the hood — transcripts, skills, customization layers — and what to do with that knowledge.
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Claude Code Has 5 Ways to Customize It — Here's When to Use Each
A complete guide to Claude Code customization: CLAUDE.md, Skills, slash commands, hooks, and memory. Where each one lives, when to use it, and how they overlap.
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Where Claude Code Stores Your Transcripts (and How to Actually Use Them)
Claude Code writes every session to a JSONL file on disk. Here's exactly where, what's in each file, and what you can do with that data — grep, replay, back up, or turn it into reusable skills.