up

src/Scanner/__Libraries/StellaOps.Scanner.Reachability/ReachabilityGraphBuilder.cs

@@ -151,8 +151,16 @@ public sealed class ReachabilityGraphBuilder
         var payload = new ReachabilityGraphPayload
         {
             SchemaVersion = GraphSchemaVersion,
-            Nodes = nodes.Select(id => new ReachabilityNode(id)).ToList(),
-            Edges = edges.Select(edge => new ReachabilityEdgePayload(edge.From, edge.To, edge.Kind)).ToList()
+            Nodes = nodes
+                .OrderBy(id => id, StringComparer.Ordinal)
+                .Select(id => new ReachabilityNode(id))
+                .ToList(),
+            Edges = edges
+                .OrderBy(edge => edge.From, StringComparer.Ordinal)
+                .ThenBy(edge => edge.To, StringComparer.Ordinal)
+                .ThenBy(edge => edge.Kind, StringComparer.Ordinal)
+                .Select(edge => new ReachabilityEdgePayload(edge.From, edge.To, edge.Kind))
+                .ToList()
         };
 
         var options = new JsonSerializerOptions