Claude Code for NestJS Monorepos: A Practical Setup Guide (opens in new tab)

A practical, step-by-step guide to configuring Claude Code with CLAUDE.md, rules, and skills so AI-generated code matches your team's conventions in a large NestJS monorepo. Hook: Ask Claude to "add a consumer-visible status to a booking" in an unconfigured monorepo, and it will happily edit the wrong microservice, hardcode an error string, and check user.role === 'admin'. None of that is Claude being wrong — it's Claude guessing. This guide removes the guessing. Key Takeaways Claude Code rea...