diff --git a/hive-c0re/src/auto_update.rs b/hive-c0re/src/auto_update.rs
index 012e2863..601d5417 100644
--- a/hive-c0re/src/auto_update.rs
+++ b/hive-c0re/src/auto_update.rs
@@ -209,7 +209,7 @@ pub async fn ensure_manager(coord: &Arc<Coordinator>) -> Result<()> {
 /// Sort `names` in-place so parents precede their children in the topology.
 /// Uses BFS from root agents (depth 0). Agents absent from `topo` sort last,
 /// alphabetically within their tier. Stable within each depth tier.
-fn topology_sort(names: &mut Vec<String>, topo: &std::collections::BTreeMap<String, Option<String>>) {
+pub fn topology_sort(names: &mut Vec<String>, topo: &std::collections::BTreeMap<String, Option<String>>) {
     use std::collections::{HashMap, VecDeque};
     // Build depth map using owned clones so the borrow on `names` is released
     // before the sort_by mutable borrow.
@@ -300,3 +300,4 @@ pub async fn run(coord: Arc<Coordinator>) -> Result<()> {
     coord.emit_rebuild_queue_snapshot();
     Ok(())
 }
+