structural-review

Perform a structural and maintainability review of a PR or codebase diff — covering file-size blockers, abstraction quality, layer violations, type structural discipline, spaghetti branching, non-atomic mutations, stack-specific hygiene (Bun, Tailwind v4, Next.js 16, shadcn/ui), design purity (code-judo), and directness over magic (no speculative generality). Use when asked to review code quality, maintainability, structural health, or architecture of a change. Orthogonal to /code-review (which owns correctness bugs and CLAUDE.md compliance) — run after correctness passes or in parallel when a thorough PR review is requested.