Lineage
See How Data Flow Changed, Not Just Which Lines Changed
Show how data flow changed, not just how SQL text changed.
Compare column-level lineage between two SQL versions to see how data flow changed, not just which lines changed. Built for dbt model reviews.
The problem it solves
Code diffs show line changes, but data teams need to understand semantic changes: new sources, removed relationships, changed transformations, or columns flowing from different places.
What it does
Runs column-level lineage on the before and after versions of SQL.
Compares source-to-output relationships.
Highlights added, removed, and changed lineage edges.
Improves code review for refactors and model changes.
When to use it
DURING
SQL or dbt model review
BEFORE
merging a refactor
WHEN
changing source fields or transformation logic
WHEN
governance teams need to understand data flow impact
How it works
The skill obtains the original and modified SQL, traces lineage for both, computes the diff, and reports how data flow changed.