During October 2025, Piotr Sulkowski enhanced the elastic/elasticsearch-specification repository by adding the available_processors field to the CAT Nodes API, providing users with improved visibility into per-node CPU resources. He implemented this feature using TypeScript, ensuring that the new field was properly aliased as 'ap' in both the API specification and client types. This update streamlined capacity planning and automation by clarifying CPU availability on each node, reducing the need for manual checks. Piotr’s work demonstrated a strong grasp of API development and data modeling, maintaining consistency across documentation, TypeScript definitions, and the underlying API for better developer experience.