The Weekly Read
Three pieces this week put hard numbers on things we usually argue by feel. Refactoring cut an agent's input tokens by 83%. DoorDash halved its per-turn token bill with one harness change. And a team whose pull requests grew 3.5x with AI worked out why it was catching fewer bugs: the PRs got too big to review well. Alongside those, Noah Smith asks what more intelligence actually buys us, and Anthropic deleted 80% of its own system prompt. Skim the headers, dive where you are curious, and watch for the Rangle Practice tags that connect a piece to something we are building.
30 worth reading · 12 newsletters · ~15 min read