How a Verification-First AI Harness Outperforms Bigger Models in Bug Repair
A software engineering team has published a method for integrating a language model into automated maintenance pipelines while strictly limiting its decision-making authority. The approach, derived from a production deployment managing roughly 1,400 extraction targets and 1.6 million monitored items, centers on a machine-checkable oracle that verifies every AI-proposed fix before it is applied. The team found that constraining prompts and narrowing evidence roughly doubled precision, while doubling model size yielded no measurable improvement. The method is designed for problems where artifacts are small and structured, failures are high in volume, and incorrect repairs would produce silent wrong output rather than obvious errors. The authors present the framework as domain-independent, noting it has been validated beyond web extraction in configuration migration and flaky-test repair scenarios.
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