diff --git a/src/_data/textbook_sources.json b/src/_data/textbook_sources.json
index 7a788d5..1a5218c 100644
--- a/src/_data/textbook_sources.json
+++ b/src/_data/textbook_sources.json
@@ -12,7 +12,7 @@
     "license_status": "declared",
     "correction_target": "The-Interdependency/metapat:CHAPTER_ZERO.md",
     "status": "root ontology and theory",
-    "summary": "The root structure/action model: thing, boundary, state, simplex, relate, emerge, tensor, vector, scalar, transformation, time, and derived energy."
+    "summary": "The root structure/action model through time, with domain qualification: structural recurrence does not transfer a domain term, mechanism, evidence standard, or conservation law; energy remains domain-qualified."
   },
   {
     "number": 1,