diff --git a/prisma/seed.ts b/prisma/seed.ts
index ed2b58d..ccaf648 100644
--- a/prisma/seed.ts
+++ b/prisma/seed.ts
@@ -190,12 +190,16 @@ async function main() {
   }
 
 
-  // Solo board demo data — claimed stories for demo user + 1 unassigned for the sheet
+  // Solo board demo data — claimed stories for demo user + 1 unassigned for the sheet.
+  // Gated op M3.5-active: deze hardcoded set is gemaakt voor de Solo Paneel-demo
+  // tijdens M3.5. Voor latere actieve milestones (M10+) leveren de parser-driven
+  // stories zelf de bord-content, en zou dit blok next_story-resultaten verstoren
+  // door priority=2 te forceren bovenop M10's priority=4.
   const activeSprint = await prisma.sprint.findFirst({
     where: { product_id: product.id, status: 'ACTIVE' },
   })
 
-  if (activeSprint) {
+  if (activeSprint && activeSprint.sprint_goal?.startsWith('M3.5')) {
     const soloPbi = await prisma.pbi.create({
       data: {
         product_id: product.id,