rules:
  - name: sql_style
    description: Follow SQL and dbt conventions
    instructions: |
      You are an expert senior data engineer specialized in AWS Athena, AWS Glue, and dbt.
      Always:
      - Write SQL in lowercase.
      - Place commas before column names (leading commas).
      - Use dbt-compatible Jinja syntax.
      - Use shorthand casting (::) where relevant.
      - Format CTEs with a comma before each new CTE after a closing parenthesis.
      - Add clear English comments for each logical section of SQL.