Who hurts
Operations leads and bookkeepers at 10–100 person companies.
The problem
Software gets bought on individual cards, renews silently, and outlives the employee who bought it. Nobody has the full list, and the annual audit is a two-day spreadsheet exercise.
What you build
Read the card and bank feeds, identify recurring software charges, cross-reference SSO login activity to find seats nobody uses, and produce a ranked cancel list with the renewal date and the cancellation link for each.
Why now
Bank aggregation is a commodity, and identity providers expose the last-login data that turns 'you pay for this' into 'nobody uses this'.
Validate it this week
Audit three companies by hand from a CSV export. Show the number. The number sells the product without a demo.
Why you'd keep winning
A vendor fingerprint library — mapping messy statement descriptors to real products — that gets better with every customer.
The honest risk
Value is front-loaded: you save them $17k in month one and then justify a subscription forever. Design for ongoing monitoring from day one.
The prompt is written to make an AI argue with you before it writes code — that first round of pushback is worth more than the scaffold.