Production-Grade Agents, Built in the Open — Part 3 of 6 One Core, Four Doors Specs, Not Vibes Anatomy of a Bolt (this article) The LLM Never Scores Stop Burning Tokens on Grep AI Did the Typing Part 2 gave you the totals: 11 Bolts, 62 tasks, 135 evals. This part picks one real Bolt — the cover-lett