2026-08-26 Entity API

Widget sizing moved to new fields: entity schemas accept a new optional ui_config.widget_widths and capability UI hooks a new optional default_width, while ui_config.grid_layout is deprecated and will be removed in a future version — affecting PUT /v1/entity/schemas/{slug}, POST/PUT /v1/entity/schemas/capabilities/{composite_id}, and everywhere schemas and capabilities are read
POST /v1/entity:graph now accepts an optional filter per graph node, for narrowing which entities that node matches