Does it support complex data types for inputs?

Absolutely. It handles primitives like strings and integers as well as complex types like Dates, Hashes, Arrays, and specific ActiveRecord model instances.

Why use ActiveInteraction over standard Rails service objects?

ActiveInteraction provides a standardized interface (.run), built-in type declarations, and Rails-style validations, making business logic more predictable and easier to test than ad-hoc service objects.

Can this skill help with existing state management logic?

Yes, the skill provides patterns for implementing AASM state machines on existing ActiveRecord models, including transition guards, callbacks, and automatic scopes.

How does error handling work with these patterns?

ActiveInteraction captures errors in a way that is compatible with Rails' native errors object, making it easy to merge business logic failures back into your UI or API responses.

Business Logic Coder

Name: Business Logic Coder
Author: majesticlabs-dev

bymajesticlabs-dev

•

API Development

Implements structured business logic in Ruby on Rails using ActiveInteraction and AASM state machines.

About

Business Logic Coder is designed to streamline backend development in Ruby on Rails by replacing unstandardized service objects with structured ActiveInteractions and state machines. It provides Claude with the patterns needed to create typed operations, manage complex state transitions via AASM, and refactor messy controller logic into clean, testable units. By enforcing consistent interfaces and built-in validations, this skill ensures that business workflows are self-documenting, resilient to invalid data, and easy to compose into larger systems.

Key Features

Automates the refactoring of legacy service objects into structured interactions.
Includes built-in support for transition guards, callbacks, and error handling.
Standardizes service logic using ActiveInteraction for typed inputs and validations.
Implements robust AASM state machines for complex workflow management.
Provides composition patterns to nest and chain multiple business operations.
9 GitHub stars

Use Cases

Refactoring monolithic controllers into reusable, typed business operations.
Standardizing API responses by ensuring consistent input validation and error reporting.
Managing complex e-commerce or user states with AASM transitions and guards.

About

Key Features

Automates the refactoring of legacy service objects into structured interactions.
Includes built-in support for transition guards, callbacks, and error handling.
Standardizes service logic using ActiveInteraction for typed inputs and validations.
Implements robust AASM state machines for complex workflow management.
Provides composition patterns to nest and chain multiple business operations.
9 GitHub stars

Use Cases

Refactoring monolithic controllers into reusable, typed business operations.
Standardizing API responses by ensuring consistent input validation and error reporting.
Managing complex e-commerce or user states with AASM transitions and guards.