How the agent answers this
Your agent calls list_transactions + get_merchant_history.
Category filter is fastest; merchant history catches the long-tail stations.
Variant prompts
“Monthly gas spend for the last 6 months.”
“Am I spending more on gas than last year?”
“Total gas across Shell, Chevron, and the other stations I visit.”
Setup
Sign in at bankbridge.money, connect your bank, paste the pre-filled snippet into your agent of choice (see setup guide), then ask one of the prompts above.