How should I scope a first engagement for a payment matching agent?

Scope a first engagement around one narrow decision, not the whole receivables process. A good starting unit is the step where a payment line is matched to open items and either posted or escalated. That keeps the record set small enough to inspect and the tasks specific enough to score.

Decide four things up front. First, the domain and payer mix: business invoices, consumer instalments, claims remittances or utility accounts, since each brings different reference patterns. Second, the hard cases you most want represented, such as combined remittances, short-pays, duplicate lines and policy changes. Third, the format your agent needs: records only, a task pack with expected outcomes, or a simulated environment with tools and reset. Fourth, how you will use it: training examples, evaluation only, or both, which affects licence terms and whether held-out tasks are kept separate.

Scope, volume, delivery and licence terms are agreed with MirrorFirm in the engagement; this entry does not set them. Expect to describe your agent's tool interface and your current failure cases so the generated material targets them.

A useful first step is a small sample reviewed by your own staff, before any larger commitment. The review tells you whether the realism, the policies and the grading are worth extending.