# Lesson 6 complete: deal-breakers

Learner finished lesson 0006 with all quiz answers correct. Can flag collocation-without-tooling, full-CI thrash, unowned coupling, cache-input lies, pin gaps, migration denial, and when polyrepo wins. Unlocks decision playbook (mission payoff): monorepo+moon vs Nx/Turborepo/Bazel/polyrepo.