Nay, I periodically go through phases in most of my large applications where I do nothing but test, refine, refactor, consolidate, and modularize (the multi-thousand line monoliths that LLM's love to make so much) for days before resuming my roadmaps.

This part is honestly one of the most satisfying, where you merge the already existing functionality with beautiful patterns.

I also make good use of precommit hook scripts to catch drift where possible

I don't know how anyone can make this assumption in good faith. The poster did not imply anything along those lines.

GPT-5 codex variants with xhigh reasoning make great code reviewers.