There’s a moment every developer hits when “AI-assisted coding” starts feeling less like acceleration and more like friction.

For me, that moment came somewhere between deleting yet another useEffect -based data fetch and watching Cursor confidently generate a tailwind.config.js file in a project that absolutely did not need one.

That loop kept repeating:

Wrong patterns

Outdated APIs

Defaults that no longer reflect how modern apps are built

And the more cutting-edge the stack became— Next.js 16, React 19, Tailwind v4 —the worse it got.

So I stopped fixing the symptoms and built my own rules pack instead.

Afterwards, I wanted to have some place that I could centralize it and future digital products and tools.

That place became Saastenance —and this post is both a technical deep dive and the story of how a small dev tool quietly turned into a full digital product and part of a brand.

The Real Problem: AI Is Only As Good As Its Defaults

Tools like Cursor and Claude Code don’t “understand” your…