marts-design

Design dbt data mart layers with domain ownership, stable grain, and BI-ready structure.

1|1|Updated Feb 27, 2026
One-click install
npx skills add https://github.com/nrakow/ae-skills-dev --skill marts-design
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: marts-design
Source: https://github.com/nrakow/ae-skills-dev/tree/main/skills/marts-design
Command: npx skills add https://github.com/nrakow/ae-skills-dev --skill marts-design

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Designing the data mart layer — the business-facing output of your dbt project — with clear domain ownership, consistent grain, and BI-ready structure.

Core Features & Use Cases

  • Domain-owned mart design: defines owner, grain, and naming conventions to reduce BI confusion.
  • Mart patterns guidance: provides examples for domain-based, fact/dimension, and subject-area marts.
  • Governance & validation: outlines checks for grain, PKs, FKs, and deprecation to ensure trusted downstream analytics.

Quick Start

Start by outlining domain ownership and grain, then draft the mart models and a documentation plan.

Frequently Asked Questions about marts-design

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I design a data mart layer in dbt with clear domain ownership?

To design a data mart layer in dbt, define domain ownership, establish a stable grain, and apply BI-ready structures for fact and dimension tables. This approach reduces BI confusion by aligning models with specific business domains and naming conventions.

What is the best way to structure staging-to-mart transformations in dbt?

Structure staging-to-mart transformations by applying consistent grain, primary keys, and foreign keys. Use domain-based, fact/dimension, or subject-area mart patterns to ensure downstream analytics remain trusted and business-ready.

How do you enforce data mart governance and validation checks across multiple domains?

Enforce data mart governance by applying validation checks for grain consistency, primary keys, foreign keys, and model deprecation. These checks ensure trusted downstream analytics and maintain structure across multiple dbt domains.

Can I use this approach to model fact and dimension tables for different business domains?

Yes, you can model fact and dimension tables for different domains by defining domain ownership and applying subject-area mart patterns. This ensures the mart structure aligns with existing data-stack context and validation steps.

What are the limitations of designing dbt marts without stable grain and naming conventions?

Without stable grain and naming conventions, dbt marts suffer from BI confusion and broken governance. Skipping validation checks on primary and foreign keys ultimately degrades trust in downstream analytics.