Operator 2026-09-30: module design patterns, reuse, declarative. BRIDGE.13 added a C# interface per contribution kind; SharePoint's element for a file an app ships is Module/File in its Feature's elements.xml. Proposal: a Module element (new in SAF-Parts.xsd, the real schema's names) that the host resolves for any file lookup (board views, page layouts), IAppBoardViewSource retired. New part kind: ask-first.