Two voices run through this piece: the PM intrigued by what AI changes for a DevSecOps agile team, and the tinkerer who built the whole thing himself just to understand it. Neither one is trying to convince you of anything — just to tell the story.

This isn't meant to be academic or professional. It's the story of a personal exploration: how a plain, everyday need — stop wasting hours comparing prices by hand — dragged me from a single chat prompt all the way to a small multi-agent app running on a server. At every step, two voices talk to each other in my head. I'm keeping them separate here, on purpose.

Act 1 — The simple chat, and the wall

The tinkerer: it always starts the same way. A chat, a prompt, "find me the best price for X." It works, once, for one product. It breaks the moment you ask the same thing ten times across ten different retailers: same prompt, different response formats, a retailer missing every other time, no way to check what was just claimed.…