The AI Agent Gap

The Production Chasm.

The demo always works. An agent triages the inbox, drafts the report, answers the customer — the room nods, the budget clears, a launch date gets a slide. Then the launch date moves. And moves again.

What sits between the demo and the launch is not a model problem. It is an operating problem: the system has to work every time, for everyone, under load, when something upstream breaks, at a cost you can defend. I call that distance the Production Chasm.

Reliability is not a property you buy with a better model. It is a property you design — and most teams discover this only after the third slipped date, when the question in the room has quietly changed from 'can it?' to 'why won't it?'

This book is the operating discipline for crossing the chasm: a reliability ladder, evaluation as infrastructure, observability and cost under control, and the operating model that turns one working agent into a fleet.