diff --git a/the-starfall-accord/rag/project.rag.md b/the-starfall-accord/rag/project.rag.md
index 5703e7b..a56a4d8 100644
--- a/the-starfall-accord/rag/project.rag.md
+++ b/the-starfall-accord/rag/project.rag.md
@@ -14,3 +14,4 @@
 - Editorial reviews are assigned distinct foci (e.g., "developmental", "line", "continuity") to enable specialized feedback before roundtable synthesis.
 - Editorial pipeline for novel chapters requires three specialized reviewers (one each for developmental/narrative pacing, line edits/character voice, and continuity/thematic consistency) followed by a dependent roundtable debate to synthesize critiques.
 - Chapter 5 functions as the novel's structural "Midpoint," delivering the first kiss, a historical revelation pivoting the plot stakes, and introduction of the antagonist (High Inquisitor Vane).
+- The Starfall Accord's core magical mechanism is "Resonance," a soul-tether binding that fuses fire/ice lineages, externalizing the rivals-to-lovers arc and anchoring the school merger to a destined personal union.