recurring-charge-detector
Recurring Charge Detector
Table of Contents
Overview
A subscription audit is mostly the same question asked many ways: which charges arrive on a clock? This skill clusters historical transactions by merchant + cadence + typical amount, requires ≥ 3 confirming occurrences before promotion, and tracks each cluster's lifecycle (active → suspected_dormant → cancelled).
It computes annualized cost for each active recurring entry — the single most useful number in a subscription audit ("you are spending $191 a year on Netflix").
Input contract
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