How does this skill help prevent N+1 queries?

The skill provides a specialized decision tree to help you choose between includes, preload, and eager_load based on whether you need to filter or sort by associated data.

When should I use model validations vs database constraints?

This skill guides you on when to use validations for user feedback and when to use database constraints for absolute data integrity, often recommending a combination of both.

Does it provide guidance on database migrations?

Absolutely. It includes safe patterns for concurrent index creation, reversible column changes, and instructions for maintaining data integrity during schema updates.

Can I use this for complex Rails associations?

Yes, it supports everything from basic belongs_to relationships to advanced polymorphic associations and has_many :through join models.

ActiveRecord

Name: ActiveRecord
Author: hoblin

byhoblin

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Database Management

Streamlines Ruby on Rails database management with expert patterns for migrations, associations, and query optimization.

About

ActiveRecord is a specialized skill for Claude Code designed to assist Ruby on Rails developers in architecting, maintaining, and optimizing their database layer. It provides deep domain expertise for writing safe migrations, defining complex model associations, implementing robust validations, and troubleshooting performance bottlenecks. By offering decision trees for eager loading and best practices for lifecycle callbacks, this skill helps developers ensure data integrity while maintaining high-performance applications.

Key Features

Expert migration generation with safe, reversible patterns
Database constraint and model validation best practices
Complex association mapping including polymorphic and through relationships
Eager loading optimization to eliminate N+1 query issues
High-performance batch processing and query scope definitions
5 GitHub stars

Use Cases

Optimizing slow database queries using eager loading and indexing
Designing complex database schemas and model relationships
Refactoring legacy migrations and ensuring production-safe schema changes

About

Key Features

Expert migration generation with safe, reversible patterns
Database constraint and model validation best practices
Complex association mapping including polymorphic and through relationships
Eager loading optimization to eliminate N+1 query issues
High-performance batch processing and query scope definitions
5 GitHub stars

Use Cases

Optimizing slow database queries using eager loading and indexing
Designing complex database schemas and model relationships
Refactoring legacy migrations and ensuring production-safe schema changes