Seven headings for writing a job description for an AI system

A guide proposes describing an AI system as a job on one screen, covering seven headings: trigger, input, source of truth, output, destination, never, and exception owner. The author argues that a vague question like whether AI can handle invoices is not buildable, whereas a defined recurring job with a start, inputs, results and a destination can be handed over. An invented example of a returns spreadsheet, fed from a returns inbox, illustrates how each heading is filled in. The author identifies the source-of-truth heading as the most decisive for whether a system works in practice, since conflicting data sources often break systems. Any heading left empty signals an unresolved decision that should be settled before building begins.