Comment by 7777777phil

The sharp results all came from pairing domain expertise with detailed AGENTS.md files. The impressive Rust output happened because someone who knows Rust was steering it. Vague prompts got mediocre output. A model on its own converges to the mean of its training data, which is why the "vibe code everything" thesis keeps not holding up: https://philippdubach.com/posts/the-impossible-backhand/