Maintaining a 10-year Rails app: AI understands the domain model perfectly
kieranklaassen · x · 2026-08-31
The author shares an experience maintaining a 10-year-old Rails app with complex business logic. Previously, configuration was done manually via console. This year, the author used AI to handle it. Thanks to the carefully crafted domain model, the AI fully understood the business language and raised meaningful questions about pricing and structure. This demonstrates a positive feedback loop between AI acceleration and thoughtful domain modeling.
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