diff --git a/Codex Documentation/Current Software Plan/UI Plan 2 - Backlog Board Implementation/UI_PLAN_2_IMPLEMENTATION_NOTES.md b/Codex Documentation/Current Software Plan/UI Plan 2 - Backlog Board Implementation/UI_PLAN_2_IMPLEMENTATION_NOTES.md
index b993547..5dd6b0f 100644
--- a/Codex Documentation/Current Software Plan/UI Plan 2 - Backlog Board Implementation/UI_PLAN_2_IMPLEMENTATION_NOTES.md	
+++ b/Codex Documentation/Current Software Plan/UI Plan 2 - Backlog Board Implementation/UI_PLAN_2_IMPLEMENTATION_NOTES.md	
@@ -32,3 +32,15 @@
 - `dart test`: passed.
 - `flutter analyze` in `apps/focus_flow_flutter`: passed.
 - `flutter test` in `apps/focus_flow_flutter`: passed.
+
+## Block 02 Audit
+
+1. `GetBacklogRequest`, `BacklogQueryResult`, and `BacklogItemReadModel` remain
+   the compatibility path for the existing simple backlog pane.
+2. UI Plan 2 should add board-specific public read models instead of extending
+   `BacklogQueryResult`, because the board needs columns, summary
+   distributions, child previews, detail rows, and suggested slots while the
+   current list result intentionally exposes raw tasks plus staleness markers.
+3. The board bucket policy belongs in pure scheduler backlog code under
+   `packages/scheduler_core/lib/src/scheduling/backlog/`, with Flutter consuming
+   only public `scheduler_core.dart` exports.