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wshobson/dbt-변환-패턴

애널리틱스 엔지니어링을 위한 dbt(data build tool) 마스터: 모델 구성, 테스트, 문서화, 증분 전략. 데이터 변환 구축, 데이터 모델 생성 또는 애널리틱스 엔지니어링 모범 사례 구현 시 사용하세요.

dbt-변환-패턴란 무엇인가요?

이 스킬은 데이터 변환, 데이터 모델 생성, 애널리틱스 엔지니어링 모범 사례를 구현하는 데 사용되는 dbt(Data Build Tool)를 마스터하는 방법을 제공합니다. 모델 구성(from sources to staging, intermediate, marts), 테스트(단일화 및 데이터 무결성 검증을 위한 제약 조건 기반 테스트), 문서화(dbt docs generate를 통한 자동 문서 생성), 증분 전략(incremental models, snapshots, bridges) 등 dbt의 핵심 패턴을 다룹니다. 이 스킬은 Claude Code, Cursor, Codex 등 다양한 AI 에이전트 플랫폼에서 사용할 수 있으며, 분석 엔지니어와 데이터 팀이 dbt 프로젝트를 체계적으로 구성하고 관리하는 데 도움을 줍니다. SKILL.md 문서는 dbt 프로젝트의 전체 라이프사이클을 안내하며, 환경 설정부터 배포 및 유지보수까지 모범 사례를 제시합니다.

지원 대상~Claude Code~Codex CLI~Cursor
npx skills add https://github.com/wshobson/agents/tree/main/skills/dbt-transformation-patterns

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문서

dbt-변환-패턴은(는) 무엇을 하나요?

애널리틱스 엔지니어링을 위한 dbt(data build tool) 마스터: 모델 구성, 테스트, 문서화, 증분 전략. 데이터 변환 구축, 데이터 모델 생성 또는 애널리틱스 엔지니어링 모범 사례 구현 시 사용하세요.

개요

이 가이드는 dbt(Data Build Tool)를 사용한 효과적인 데이터 변환 패턴을 설명합니다. 다음을 다룹니다:

  • 모델 구성: 소스에서 스테이징, 중간, 마트로의 계층적 모델링
  • 테스트: 데이터 무결성 및 비즈니스 논리 검증을 위한 제약 조건 기반 테스트
  • 문서화: dbt docs generate를 통한 자동 문서 생성
  • 증분 전략: 대규모 데이터셋을 위한 증분 모델, 스냅샷, 브릿지 테이블

지원 플랫폼

  • Claude Code
  • Cursor
  • Codex
  • 기타 AI 어시스턴트 도구

환경 설정

시작하기 전에 다음이 설치되어 있는지 확인하세요:

pip install dbt-core dbt-postgres  # 또는 dbt-bigquery, dbt-snowflake 등

프로젝트 구조

권장 dbt 프로젝트 구조:

my_dbt_project/
├── models/
│   ├── staging/
│   │   ├── schema.yml
│   │   └── stg_orders.sql
│   ├── intermediate/
│   │   └── int_order_totals.sql
│   └── marts/
│       ├── marketing/
│       │   └── dim_customers.sql
│       └── finance/
│           └── fct_orders.sql
├── tests/
│   ├── assert_positive_total.sql
│   └── relationships.yml
├── analyses/
├── snapshots/
├── seeds/
├── macros/
├── docs/
├── dbt_project.yml
└── profiles.yml

핵심 패턴

1. 소스 정의 및 스테이징 모델

models/staging/schema.yml 파일에 소스를 정의하세요:

version: 2

sources:
  - name: raw
    database: production
    schema: public
    tables:
      - name: orders
        description: "원시 주문 데이터"

models/staging/stg_orders.sql:

WITH source AS (
    SELECT * FROM {{ source('raw', 'orders') }}
),

renamed AS (
    SELECT
        id AS order_id,
        customer_id,
        order_date,
        total_amount,
        status
    FROM source
)

SELECT * FROM renamed

2. 중간 모델 (비즈니스 논리 적용)

models/intermediate/int_order_totals.sql:

WITH orders AS (
    SELECT * FROM {{ ref('stg_orders') }}
),

order_totals AS (
    SELECT
        customer_id,
        COUNT(DISTINCT order_id) AS total_orders,
        SUM(total_amount) AS lifetime_value
    FROM orders
    GROUP BY 1
)

SELECT * FROM order_totals

3. 마트 (최종 비즈니스 테이블)

models/marts/marketing/dim_customers.sql:

WITH customers AS (
    SELECT * FROM {{ ref('stg_customers') }}
),

orders AS (
    SELECT * FROM {{ ref('int_order_totals') }}
)

SELECT
    customers.customer_id,
    customers.first_name,
    customers.last_name,
    COALESCE(orders.total_orders, 0) AS total_orders,
    COALESCE(orders.lifetime_value, 0) AS lifetime_value
FROM customers
LEFT JOIN orders ON customers.customer_id = orders.customer_id

4. 테스트 추가

models/marts/finance/schema.yml:

version: 2

models:
  - name: fct_orders
    columns:
      - name: order_id
        tests:
          - unique
          - not_null
      - name: total_amount
        tests:
          - positive_value
    tests:
      - relationships:
          to: ref('dim_customers')
          field: customer_id

사용자 정의 테스트(tests/assert_positive_total.sql):

{% test positive_value(model, column_name) %}

SELECT *
FROM {{ model }}
WHERE {{ column_name }} < 0

{% endtest %}

5. 문서화

프로젝트 루트에서 실행:

dbt docs generate
dbt docs serve

models/marts/finance/fct_orders.yml에 설명을 추가하세요:

version: 2

models:
  - name: fct_orders
    description:

Individual skills in this repo

This repo contains 20 individual skills — each has its own dedicated page.

wshobson/accessibility-compliance

Implement WCAG 2.2 compliant interfaces with mobile accessibility, inclusive design patterns, and assistive technology support. Use when auditing accessibility, implementing ARIA patterns, building for screen readers, or ensuring inclusive user experiences.

wshobson/airflow-dag-patterns

Build production Apache Airflow DAGs with best practices for operators, sensors, testing, and deployment. Use when creating data pipelines, orchestrating workflows, or scheduling batch jobs.

wshobson/angular-migration

Migrate from AngularJS to Angular using hybrid mode, incremental component rewriting, and dependency injection updates. Use when upgrading AngularJS applications, planning framework migrations, or modernizing legacy Angular code.

wshobson/anti-reversing-techniques

Understand anti-reversing, obfuscation, and protection techniques encountered during software analysis. Use this skill when analyzing malware evasion techniques, when implementing anti-debugging protections for CTF challenges, when reverse engineering packed binaries, or when building security research tools that need to detect virtualized environments.

wshobson/api-design-principles

Master REST and GraphQL API design principles to build intuitive, scalable, and maintainable APIs that delight developers. Use when designing new APIs, reviewing API specifications, or establishing API design standards.

wshobson/architecture-decision-records

Write and maintain Architecture Decision Records (ADRs) following best practices for technical decision documentation. Use when documenting significant technical decisions, reviewing past architectural choices, or establishing decision processes.

wshobson/architecture-patterns

Implement proven backend architecture patterns including Clean Architecture, Hexagonal Architecture, and Domain-Driven Design. Use this skill when designing clean architecture for a new microservice, when refactoring a monolith to use bounded contexts, when implementing hexagonal or onion architecture patterns, or when debugging dependency cycles between application layers.

wshobson/async-python-patterns

Master Python asyncio, concurrent programming, and async/await patterns for high-performance applications. Use when building async APIs, concurrent systems, or I/O-bound applications requiring non-blocking operations.

wshobson/attack-tree-construction

Build comprehensive attack trees to visualize threat paths. Use when mapping attack scenarios, identifying defense gaps, or communicating security risks to stakeholders.

wshobson/auth-implementation-patterns

Master authentication and authorization patterns including JWT, OAuth2, session management, and RBAC to build secure, scalable access control systems. Use when implementing auth systems, securing APIs, or debugging security issues.

wshobson/avoid-ai-writing

Audit and rewrite prose so it stops reading as machine-generated. Use this skill when asked to remove AI-isms, clean up AI writing, edit a draft for AI tells, audit a README, changelog, release note, PR description, or blog post for machine-sounding prose, or make text sound less like AI. Supports a detect-only mode, a rewrite mode, and an edit-in-place mode, with optional voice and context profiles.

wshobson/backtesting-frameworks

Build robust backtesting systems for trading strategies with proper handling of look-ahead bias, survivorship bias, and transaction costs. Use when developing trading algorithms, validating strategies, or building backtesting infrastructure.

wshobson/bash-defensive-patterns

Master defensive Bash programming techniques for production-grade scripts. Use when writing robust shell scripts, CI/CD pipelines, or system utilities requiring fault tolerance and safety.

wshobson/bats-testing-patterns

Master Bash Automated Testing System (Bats) for comprehensive shell script testing. Use when writing tests for shell scripts, CI/CD pipelines, or requiring test-driven development of shell utilities.

wshobson/bazel-build-optimization

Optimize Bazel builds for large-scale monorepos. Use when configuring Bazel, implementing remote execution, or optimizing build performance for enterprise codebases.

wshobson/before-you-build

Pre-build product and feature risk review for founders, product managers, and AI-assisted builders. Use this skill when the user is about to build a landing page, MVP, SaaS product, internal tool, agent workflow, or major feature and needs to check demand, positioning, monetization, retention, trust, distribution, and adoption risk before implementation starts.

wshobson/billing-automation

Build automated billing systems for recurring payments, invoicing, subscription lifecycle, and dunning management. Use when implementing subscription billing, automating invoicing, or managing recurring payment systems.

wshobson/binary-analysis-patterns

Master binary analysis patterns including disassembly, decompilation, control flow analysis, and code pattern recognition. Use when analyzing executables, understanding compiled code, or performing static analysis on binaries.

wshobson/block-no-verify-hook

Configure a PreToolUse hook to prevent AI agents from skipping git pre-commit hooks with --no-verify and other bypass flags. Use when setting up Claude Code projects that enforce commit quality gates.

wshobson/brand-landingpage

Brand-first landing page designer — runs a brand-identity interview (colors, typography, shape language), then generates and iterates on a polished landing page via Stitch with deployment-ready HTML. Use when the user asks to create, design, or build a landing page, homepage, or marketing page and has no established visual direction. Skip when they have a design mockup, need a dashboard or app UI, are working at component level, building a multi-page app, or restyling with known design tokens — use frontend-design instead.

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