diff --git a/ui/frontend/src/routes/__debug/map/+page.svelte b/ui/frontend/src/routes/__debug/map/+page.svelte
index 2719dd8..9b0b907 100644
--- a/ui/frontend/src/routes/__debug/map/+page.svelte
+++ b/ui/frontend/src/routes/__debug/map/+page.svelte
@@ -91,9 +91,13 @@
 					// (and any future per-move callback) sees the
 					// change — matches the semantics of a user drag.
 					handle.viewport.moveCenter(cx, cy);
+					// `MovedEvent.type` is a closed literal union over the
+					// built-in plugin names; `"animate"` is the closest
+					// match for a programmatic move and the renderer's
+					// listeners read only `viewport`.
 					handle.viewport.emit("moved", {
 						viewport: handle.viewport,
-						type: "manual",
+						type: "animate",
 					});
 				},
 				getViewport: () =>