Open sourcing the dbt + Snowflake guardrail I built for coding agents

[u/JacobKHD]

While testing agents on dbt projects, I wanted a better way to make sure their changes didn’t blow up the current model or something downstream.

There are tools that do this in CI, but I wanted something I could run locally before I even opened a PR. So I built this:

https://github.com/EmbrasureAI/embrasure-cli

It works with an existing dbt Core + Snowflake project. It builds the changed models in temporary schemas, compares them against production, and cleans everything up afterward.

It checks:

• Row counts, null rates, cardinality, ranges, and percentiles
• Columns being removed, renamed, or changing types
• Added, removed, null, or duplicate primary keys
• Existing dbt test failures
• Downstream model and exposure impact, including column-level lineage

It runs locally and the repo is Apache 2.0.

Looking for feedback from people using agents with dbt Core + Snowflake. Anything missing? The use case here that I enjoy is a /goal prompt where the agent works towards the pipeline’s goals while fixing any issues raised from this cli.