diff --git a/.github/copilot-instructions.md b/.github/copilot-instructions.md
index aa38292c..4279b4c9 100644
--- a/.github/copilot-instructions.md
+++ b/.github/copilot-instructions.md
@@ -94,6 +94,7 @@ The first response's `[LOADED_DOCS: ...]` prefix must reflect **3 files** (this
 # own-dep-repos: "name: path" — paths are relative to this repo root (.github/..)
 @repo {
   name = "FruitBank"
+  prefix = "FBANKNOP"
   type = "product"
   layer = 2
   own-dep-repos = [