I created my folder system for my travel business, which sells excursions on Roatán Island.
My CLAUDE.md included who I am, the brands I run, and the hard rules (never deploy without my OK, never git add a whole folder). My CONTEXT.md explained where everything lives and where to go for each kind of task. My reference files (AGENTS.md, LEADS.md, WRITING_STYLE.md) gave Claude my working style, how to handle leads, and how I write. When I asked Claude to build an automatic broken-link checker, the response was different because it found my existing memory link checker through the folder contracts. It reused that design and its past measurements instead of starting from scratch, and it respected a decision I had made two months earlier.
Before, I had to explain my rules and what already exists every time. Now Claude already has that information.
Key takeaway: the files are only as good as their upkeep. Claude follows the structure when the contracts are short and current, and drifts when they grow or go stale.