AI Code Review Got Much Better When I Gave It Design Contracts, Not Just Code (Fable5 review)

I recently built a small .NET library called PooledMailKit. It is an SMTP connection pool built on top of MailKit. NuGet: dotnet add package PooledMailKit https://www.nuget.org/packages/PooledMailKit At first glance, this may sound like a simple utility library. Reuse SMTP connections. Avoid creating and disposing SmtpClient for every message. Reduce connection overhead. But the real reason I built it was not performance. The real reason was that AI-generated SMTP code looked corr...