feat: initial companion repo for CC-010 CLAUDE.md

CLAUDE.md

@@ -0,0 +1,40 @@
+# CLAUDE.md: Give Claude Code Standing Instructions
+
+## What this project is
+
+A companion repo for the From AI to Chitta article on **CLAUDE.md**
+(concept ID: `CC-010`). It contains exercises that let you write,
+layer, and improve CLAUDE.md files in your own projects.
+
+Article: https://fromaitochitta.com/claude-code-claude-md
+
+## How to use this
+
+1. Open Claude Code in this directory: `cd claude-code-claude-md && claude`
+2. Work through exercises in order: `exercises/01-write-your-first.md`, then 02, then 03
+3. Each exercise has a self-contained prompt you paste into Claude Code
+4. Compare your output to the expected output described in each exercise
+
+## Code quality expectations
+
+- This is a learning repo. Clarity over cleverness.
+- Every exercise must run without modification on a clean clone
+- No external dependencies unless explicitly listed in the exercise
+- If something does not work as expected, that is useful information -- note it
+
+## Project structure
+
+```
+exercises/          Numbered exercises with prompts and expected output
+CLAUDE.md           This file -- project instructions
+README.md           Overview for anyone who clones this repo
+```
+
+## Domain
+
+Claude Code Memory and Instructions
+
+## Memory
+
+Keep session notes in a local `MEMORY.md` (gitignored). This file
+(CLAUDE.md) is for instructions. MEMORY.md is for state.