diff --git a/include/ircd/m/room.h b/include/ircd/m/room.h
index 393e946cf..0c0ffed55 100644
--- a/include/ircd/m/room.h
+++ b/include/ircd/m/room.h
@@ -145,8 +145,8 @@ struct ircd::m::room
 	// misc
 	bool membership(const m::id::user &, const string_view &membership = "join") const;
 	string_view membership(const mutable_buffer &out, const m::id::user &) const;
-	bool visible(const id::user &) const;
-	bool visible(const id::node &) const;
+	bool visible(const id::user &, const m::event *const & = nullptr) const;
+	bool visible(const id::node &, const m::event *const & = nullptr) const;
 
 	room(const id &room_id,
 	     const string_view &event_id,
diff --git a/ircd/m/m.cc b/ircd/m/m.cc
index 4d8c6b858..373b17a74 100644
--- a/ircd/m/m.cc
+++ b/ircd/m/m.cc
@@ -2783,7 +2783,7 @@ ircd::m::visible(const event &event,
 		at<"room_id"_>(event), at<"event_id"_>(event)
 	};
 
-	return room.visible(origin);
+	return room.visible(origin, &event);
 }
 
 bool
@@ -2795,7 +2795,7 @@ ircd::m::visible(const event &event,
 		at<"room_id"_>(event), at<"event_id"_>(event)
 	};
 
-	return room.visible(user_id);
+	return room.visible(user_id, &event);
 }
 
 ///////////////////////////////////////////////////////////////////////////////
diff --git a/ircd/m/room.cc b/ircd/m/room.cc
index e8f0c6e7d..c33217473 100644
--- a/ircd/m/room.cc
+++ b/ircd/m/room.cc
@@ -162,17 +162,33 @@ ircd::m::my(const room &room)
 //
 
 bool
-ircd::m::room::visible(const m::user::id &user_id)
+ircd::m::room::visible(const user::id &user_id,
+                       const event *const &event_)
 const
 {
-	return true;
+	using prototype = bool (const room &, const user &, const event *const &);
+
+	static import<prototype> function
+	{
+		"m_room_history_visibility", "visible__user"
+	};
+
+	return function(*this, user_id, event_);
 }
 
 bool
-ircd::m::room::visible(const m::node::id &origin)
+ircd::m::room::visible(const node::id &node_id,
+                       const event *const &event_)
 const
 {
-	return true;
+	using prototype = bool (const room &, const node &, const event *const &);
+
+	static import<prototype> function
+	{
+		"m_room_history_visibility", "visible__node"
+	};
+
+	return function(*this, node_id, event_);
 }
 
 bool
diff --git a/modules/m_room_history_visibility.cc b/modules/m_room_history_visibility.cc
index 86c1dbb7d..9f5cbd627 100644
--- a/modules/m_room_history_visibility.cc
+++ b/modules/m_room_history_visibility.cc
@@ -16,6 +16,33 @@ IRCD_MODULE
 	"Matrix m.room.history_visibility"
 };
 
+namespace ircd::m
+{
+	extern hook::site visible_hook;
+}
+
+decltype(ircd::m::visible_hook)
+ircd::m::visible_hook
+{
+	{ "name", "m.event.visible" }
+};
+
+extern "C" bool
+_visible__user(const m::room &room,
+               const m::user &user,
+               const m::event *const &event)
+{
+	return true;
+}
+
+extern "C" bool
+_visible__node(const m::room &room,
+               const m::node &node,
+               const m::event *const &event)
+{
+	return true;
+}
+
 static void
 _changed_visibility(const m::event &event)
 {