Ask HN: How would you harden AI changes to a 1M-line legacy SaaS before review?

By thegreatkahuna · 2026-07-25 · 1 points · 0 comments

I’m not a software engineer, but I’ve been running an experiment to see whether agentic development could produce a useful prototype on top of an existing SaaS codebase. The codebase is 1M+ lines, 15 years old, hosted on Azure, and primarily written in C# and React. The prototyp…

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