AI article
Your Daily Mortgage Import Can Leak History Into Evaluation
Community description: Build a mortgage-history JSONL corpus with observation keys, revision tracking, bounded chunks, and temporal splits.
Dev.to | Nov 8, 2026 | vexaloom-labs
Automated excerpt
A dataset row containing historical observations is an export unit, not a reliable retrieval identity. Starting an empty ledger every morning doesn't preserve revision history. Flattening a historical array creates corpus observations; it doesn't turn those observations into additional dataset-item events.
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