I replaced my keyword rule engine with one AI call — and deleted half the product

Findest files your email attachments into your own cloud storage. Invoices, payslips, signed contracts — they land in the right folder without you touching them.

The original rule builder had four filter fields: sender contains, subject contains, filename contains, document type. It felt powerful. It was actually a trap — the filters matched on substrings, so a rule named "electricity bills" caught every single document labelled a bill, including a Make.com receipt that ended up filed with my power company invoices.

I deleted all four fields. A rule is now one sentence: "electricity bills for the office". An AI model reads the full attachment and decides which of your rules it belongs to — all of them evaluated together in a single call, because asking rule-by-rule makes the model agree with the first thing that looks close.

Two things I didn't expect:

1. The UI got dramatically simpler. Four inputs became one textarea, and the feature stopped needing an explanation.

2. It stopped being a paid-tier feature. When AI descriptions became the only way to write a rule, gating them behind the top plan would have left the free tier unable to create any rule at all. So the paid differentiator moved to something users actually ask for: filing the same document into several clouds at once.

Free tier, no card: findest.site. Files to Drive, OneDrive, Dropbox, Gmail and Outlook.

What's the feature you shipped that turned out to be the thing making the product worse?