May 2025 monthly summary for Shopify/rails. Key feature delivered: Active Record: Column-filtered attribute accessors, enabling finer control over database interactions by restricting attribute accessors to a specified set of columns (concept supported by only_columns). This reduces unnecessary data loading and promotes safer, more predictable queries. No major bugs fixed this month. Impact and accomplishments: The feature directly improves data access performance and consistency in Rails models, helping teams avoid unintended column reads and facilitating more efficient query planning. The change is traceable via a single, well-documented commit and ready for broader adoption in codebases using Active Record. Technologies/skills demonstrated: Ruby on Rails, Active Record customization, per-column access control, commit-based change traceability, emphasis on performance and data access governance.