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DHH Goes 'Agent-First' at 37signals — Reviews 100 Pull Requests in 90 Minutes with Claude Code, Credits a Rails Renaissance
Gergely Orosz's Pragmatic Engineer breakdown details how 37signals' DHH has inverted his workflow to 'agent-first' — telling the agent what to build and reviewing output rather than writing code by hand — and used Claude Code to review 100 pending PRs in 90 minutes, a task he estimated would take a week manually. He argues Rails is enjoying a renaissance precisely because it's token-efficient, test-first, and produces human-readable code that's easy to verify at agent speed. The takeaway for builders: framework choice is now partly an agent-ergonomics decision.
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