Engineering notes
Short, practical notes on architecture, clean code and AI-assisted development. The kind of thing I would share in a code review.
AI-assisted development moved the bottleneck from writing code to judging it. That changes what a senior engineer is for, and it makes review skills more valuable, not less.
Most painful codebases don't suffer from too little abstraction. They suffer from abstractions in the wrong places. Boundaries come first; abstractions are what you earn afterwards.
Coverage percentages measure execution, not confidence. A useful test suite is designed around a different question: what would let me refactor without fear?