42-Hour AI Port: Code Generation Took 12 Hours, the Rest Was Human Review
martinwoodward · x · 2026-09-17
GitHub's martinwoodward breaks down a 42-hour large-scale code migration: nearly all code generation happened in the first 12 hours; the rest was validation and review. Agents compared old vs new behavior while humans judged architecture and risk — "writing the code is the start, not the finish." Follow-ups: 15 agents built/tested on one laptop, with Stephen Toub using a chat session as a build scheduler to serialize builds over shared resources.
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