Data Transformers

Centralized transformation logic for consistent data shaping across API routes.

When to Use This Skill

• Data transformation is scattered across routes
• Need consistent output formats across endpoints
• Want testable, reusable transformation functions
• Building dashboards with aggregated data

Core Concepts

Centralize all transformation logic in one place:

• Aggregators (category totals, counts)
• Rankers (top-N by score)
• Trend calculators (comparing periods)
• Sanitizers (validate and clean data)