NEVER MIND CLEAN DATA. ANNOTATE AS YOU COLLECT IT.

Summary from the TLDR Data newsletter

AI teams should preserve provenance, schema, and source context at ingestion because hallucinations often stem from stale or non-canonical data. Gartner expects 60% of AI projects to fail without metadata and observability, while nearly 75% of frontier-model training CPU goes to cleansing and validation. Capture lineage and authority in-stream and use data contracts and DBOMs to ground agents.