What architectures does this skill support?

It is optimized for PHP architectures using DDD, CQRS, and Hexagonal patterns, specifically identifying flows between DTOs, Commands, and Entities.

How does it find transformation logic?

It utilizes specific grep patterns to locate mappers, serializers, factories, and type conversion methods across your application layers.

Does it work with frameworks like Symfony or Laravel?

Yes, the detection patterns include support for common framework components like Symfony Serializer, Laravel Resources, and standard PSR patterns.

Can it detect data loss during transformation?

Yes, it specifically identifies points where fields are dropped, types are narrowed (like DateTime to string), or precision is lost (like Money to float).

Data Transformation Tracer

Name: Data Transformation Tracer
Author: dykyi-roman

bydykyi-roman

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API Development

Maps and analyzes data transformation chains across application layers from input DTOs to domain entities and responses.

This skill provides a comprehensive methodology for tracing data as it moves through complex PHP application architectures like CQRS and Hexagonal. It automatically identifies transformation points—such as mappers, serializers, and converters—between Request DTOs, Commands, Domain Entities, and Response objects. By visualizing these chains, developers can easily spot data loss points, precision issues, and architectural anti-patterns, ensuring type safety and robust data integrity throughout the request lifecycle.

Key Features

01Detection of explicit mappers, serializers, and converters

02Automated mapping of Request-to-Response data chains

03Identification of potential data loss and precision issues

04Field-level transformation tracking (e.g., snake_case to camelCase)

0545 GitHub stars

06Quality indicator analysis for type safety and validation boundaries

Use Cases

01Documenting complex business processes for architectural reviews and onboarding

02Auditing data integrity when migrating between API versions or data formats

03Debugging unexpected data values in the domain layer or final API output

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add dykyi-roman/awesome-claude-code trace-data-transformation

For use in Claude.ai and ChatGPT

Download Skill