docs

docs/architecture/core/CQRS.md

@@ -196,15 +196,16 @@ Avoid CQRS Light when:
 
 ⸻
 
-12. Migration Path
+12. Adoption Rule (Strict)
 
-CQRS Light allows incremental adoption:
-	1.	Start with classic Clean Architecture
-	2.	Separate commands and queries logically
-	3.	Optimize read paths as needed
-	4.	Introduce events or projections later (optional)
+CQRS Light is a structural rule inside Core.
 
-No rewrites required.
+If CQRS Light is used:
+
+- commands and queries MUST be separated by responsibility
+- queries MUST remain read-only and must not enforce invariants
+
+This document does not define a migration plan.
 
 ⸻
 
@@ -241,4 +242,4 @@ Without:
 	•	Event sourcing complexity
 	•	Premature optimization
 
-It is the safest way to gain CQRS benefits while staying true to Clean Architecture.
+It is the safest way to gain CQRS benefits while staying true to Clean Architecture.