I'd like to personally thank the whole Product Hunt and Dex community that helped make this launch a success! Come join the party on GitHub: https://github.com/exmergo/dex There was some great activity in the comments, I spent all day going through your feedback, discussing it with the team, and planning improvements for Dex!
Dex Semantics adds declarations to your analytical models, which capture row meaning, join nature, how numbers add up, and decisional assumptions.
Thanks to this, Dex scores 80% on ADE-bench with Claude Sonnet 5.5, compared to 73.3% without Dex (25% fewer tasks failed).
Declarations live in your models as code, not a third-party tool. Dex then helps your agent convert declarations into your Semantic Layer of choice.
Hey everyone, thanks for the support here on Product Hunt! Opening this thread to field your enhancement requests or bug reports. Also please feel free to open issues on GitHub: https://github.com/exmergo/dex
Install it into Claude Code, Codex, Cursor or Gemini CLI, then point it at your warehouse and dbt project. Dex maps the schema read-only behind a cost guard, authors models and metrics as diffs you review, and tells you what broke when things drift. Also a Python package. npx skills add exmergo/dex
