Agents fail on raw lake data because business rules live in people's heads. Data products with semantic contracts fix this at the source.
Why equality deletes slow Iceberg reads for streaming upserts, what the V4 proposal changes, and how to convert them to deletion vectors with Flink and verify.
Agent reliability is a property of the stack the model sits on. Five layers with distinct owners and failure modes turn the agent is unreliable.
Fluss puts a columnar, indexed hot tier between Kafka and Iceberg. Here's what it changes structurally, what Kafka still does better, and how to benchmark.
