Launch HN: Ardent (YC P26) — Postgres Sandboxes in Seconds for AI Coding Agents — 94 Points, 44 Comments

Hacker News / Y Combinator·medium signal

YC-backed Ardent launched on Hacker News with a product that clones any Postgres database in under 6 seconds, giving coding agents and developers a 1:1 copy of production for safe testing. The system uses Kafka-based replication streams with copy-on-write storage (powered by Neon) and autoscales to zero when idle. The product was born from the founders' failed attempt at an AI Data Engineer agent — they realized AI agents that generate migrations have no safe way to test against real schemas.