A well-structured CLAUDE.md is the single highest-leverage thing you can do.

What Each Section Gives Claude Code

These 6 sections cover what Claude Code needs: what it is, what it’s built with, how it’s organized, what rules to follow, how to build/test/deploy, and what gotchas to watch for.

Why This Structure Stops Repeated Questions

Without these sections, Claude Code fills gaps with assumptions — and asks questions you’ve already answered. A complete CLAUDE.md means fewer interruptions and more accurate first attempts.