Expand Basic Richese and Terror interactions

docs/RULE_DECISIONS.md

@@ -1,5 +1,14 @@
 # Rule decision index
 
+## Basic Ecaz/Moritani Richese interactions — 29 October 2026
+
+Supported clean No-Field reveal interruptions extend to the native Ecaz and
+Moritani deck; existing markers do not create a new entry on revelation.
+Semuta also receives eligible Terror discards from a native Fremen worm ride.
+These online continuations are provisional and active competing reactions stay
+guarded. [Reveal scope](RICHESE_NO_FIELD_RULES.md#basic-ecazmoritani-native-tables--29-october-2026);
+[Semuta scope](SEMUTA_SOURCE_UPDATE_20260907.md#basic-terror-discards-during-a-worm-ride--29-october-2026).
+
 ## Basic Richese movement and worm-ride interruptions — 29 October 2026
 
 Voluntary No-Field reveal can interrupt supported foreign ordinary movement