open-source · since 2026
askdb
dezhiguan
Governed NL2SQL agent built around AST rewriting, database privileges, cost caps, semantic metrics, audit replay and a deliberately bounded execution pipeline.
text-to-sqllanggraphsqlglotmcpgovernanceevaluation
desk notes
Added 2026-08-28 after verifying runnable code, 230 tests, 17 documented guardrail rules and published held-out/ablation artifacts. Maintainer reports 62.5% held-out execution accuracy on 16 answerable production questions; explicitly discloses comparator contamination, noise and non-significant ablation differences. Multi-step planning is off by default.