Very fair callout and question. The extraction setup was actually the easy part. The magic in the tool is from the deterministic rules I put in place over mont

Very fair callout and question. The extraction setup was actually the easy part. The magic in the tool is from the deterministic rules I put in place over months of iteration using it myself. Inconsistent date formats, multi-lingual reservations, logic around when a new trip starts and your previous trip ends, parsing both an expense and a confirmation from the same email, duplication rules for when someone accidentally adds the same booking but from a different source, etc. These were all causes of actual parsing errors found from people testing it out. I built 68 modules within the tool itself from testing. The logic of the output will only improve over time with more usage. Building the right logic and ruleset into every conceivable scenario is the end goal.