diff --git a/Plant3D2026/P_Rec_Annot/AGENTS.md b/Plant3D2026/P_Rec_Annot/AGENTS.md
index 216cc3f..61eac30 100644
--- a/Plant3D2026/P_Rec_Annot/AGENTS.md
+++ b/Plant3D2026/P_Rec_Annot/AGENTS.md
@@ -57,6 +57,16 @@ Bundle содержит только фактический runtime dependency g
 Fixture: local Plant 3D 2026 project вне Git с настоящей Pipe, synthetic line
 number, Ortho drawing/viewport и SHA baseline до DryRun.
 
+## Viewport membership and source DataLinks
+
+Legacy P_Rec_Annot source for read-only analysis is
+`\\phpsrv03\NBIM\code\CS\P_Rec_Annot\v1.0.4\repo`.
+
+A source object is not a member of an Ortho viewport without confirmed
+evidence. A geometry-only filter is at most `PartiallyResolved`. Apply is
+blocked by any `PLUGIN_ONLY_CHANGE` in a DWG, DCF, or project metadata found by
+a paired CONTROL/DryRun comparison.
+
 ## Ortho source DataLinks and DCF control
 
 DataLinks активного Ortho drawing не являются источником Piping rows. Piping