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HarnessTax: How Much Does the Harness Matter for Coding Agents?

233 points · 99 comments · matt_d

  1. hugorus87 · · focus · HN ↗
    The harness difference is bigger for mobile than the post captures. Web agent feedback loop is ~seconds (HMR + tsc); RN feedback loop is minutes (Metro rebuild + native reload) and 5-10 min if you touched ios/ or android/. Agents that don't hold state well between reloads end up re-solving the same problem five times.
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