Developed schema-aware autocomplete functionality for ActiveRecord .where queries in the Shopify/ruby-lsp-rails repository, focusing on enhancing the Ruby LSP Rails addon. The work involved implementing a dedicated completion listener and integrating logic that introspects model schemas to suggest relevant column names as developers construct where clauses. By leveraging Ruby, Ruby on Rails, and the Language Server Protocol, this feature streamlines query creation and reduces syntax errors, directly improving developer productivity. The approach emphasized seamless integration with existing code completion workflows, ensuring that model-specific suggestions are surfaced contextually within the editor, and demonstrating depth in LSP extension and schema introspection techniques.