diff --git a/.claude-sync.conf b/.claude-sync.conf
index f7e1ddf2..268a383f 100644
--- a/.claude-sync.conf
+++ b/.claude-sync.conf
@@ -12,3 +12,4 @@ dev-docs/SECURITY_AUDIT.md
 dev-docs/design-document.md
 dev-docs/UX_SPEC_FESTIVAL_HIERARCHY.md
 dev-docs/ARCH-BINDINGS.md
+dev-docs/ARCH-API-VALIDATION.md