diff --git a/shared/sx/layouts.py b/shared/sx/layouts.py
index e21c649..e4d3f79 100644
--- a/shared/sx/layouts.py
+++ b/shared/sx/layouts.py
@@ -22,7 +22,7 @@ from typing import Any, Callable, Awaitable
 class Layout:
     """A named layout that generates header rows for full and OOB rendering."""
 
-    __slots__ = ("name", "_full_fn", "_oob_fn", "_mobile_fn")
+    __slots__ = ("name", "_full_fn", "_oob_fn", "_mobile_fn", "component_names")
 
     def __init__(
         self,
@@ -30,11 +30,13 @@ class Layout:
         full_fn: Callable[..., str | Awaitable[str]],
         oob_fn: Callable[..., str | Awaitable[str]],
         mobile_fn: Callable[..., str | Awaitable[str]] | None = None,
+        component_names: list[str] | None = None,
     ):
         self.name = name
         self._full_fn = full_fn
         self._oob_fn = oob_fn
         self._mobile_fn = mobile_fn
+        self.component_names = component_names or []
 
     async def full_headers(self, ctx: dict, **kwargs: Any) -> str:
         result = self._full_fn(ctx, **kwargs)
@@ -109,12 +111,14 @@ def register_sx_layout(name: str, full_defcomp: str, oob_defcomp: str,
         return await _render_to_sx_with_env(oob_defcomp, env)
 
     mobile_fn = None
+    comp_names = [f"~{full_defcomp}", f"~{oob_defcomp}"]
     if mobile_defcomp:
         async def mobile_fn(ctx: dict, **kw: Any) -> str:
             env = {k.replace("_", "-"): v for k, v in kw.items()}
             return await _render_to_sx_with_env(mobile_defcomp, env)
+        comp_names.append(f"~{mobile_defcomp}")
 
-    register_layout(Layout(name, full_fn, oob_fn, mobile_fn))
+    register_layout(Layout(name, full_fn, oob_fn, mobile_fn, comp_names))
 
 
 # Register built-in layouts via .sx defcomps
diff --git a/shared/sx/pages.py b/shared/sx/pages.py
index 98aa704..7f85c3d 100644
--- a/shared/sx/pages.py
+++ b/shared/sx/pages.py
@@ -426,9 +426,15 @@ async def execute_page_streaming(
         content=SxExpr(suspense_content_sx),
     )
 
-    # Pass the SX source for component scanning (resolution scripts may
-    # contain component calls that the client needs to render)
-    page_sx_for_scan = f'(~app-body :header-rows {suspense_header_sx} :content {suspense_content_sx})'
+    # Include layout component refs + page content so the scan picks up
+    # their transitive deps (e.g. ~cart-mini, ~auth-menu in headers).
+    layout_refs = ""
+    if layout is not None and hasattr(layout, "component_names"):
+        layout_refs = " ".join(f"({n})" for n in layout.component_names)
+    content_ref = ""
+    if page_def.content_expr is not None:
+        content_ref = sx_serialize(page_def.content_expr)
+    page_sx_for_scan = f'(<> {layout_refs} {content_ref} (~app-body :header-rows {suspense_header_sx} :content {suspense_content_sx}))'
     shell, tail = sx_page_streaming_parts(
         tctx, initial_page_html, page_sx=page_sx_for_scan,
     )