The boring path should be silent
Most invoices are exactly what they claim to be. The employee reads the forward, extracts the vendor and amount, codes the cost center from history, files it, and says nothing. Silence is a feature: an ops team of two cannot afford a tool that narrates its routine work.
Judgment shows up at the edges
The AWS bill that came in 12% above trend did not file silently. It landed in the ops channel with the trend line, the delta, and the likely cause, in one message a human could act on. That is the split the team wanted: routine handled, anomalies surfaced with their reasoning attached.
Month-end used to be an afternoon of reconciliation. It is now a review of what the employee already filed, with the audit log as the paper trail. The two-person team did not get smaller; their month got bigger.
Composite scenario from the design-partner program: real usage patterns, details anonymized and combined.