diff --git a/.github/workflows/ci-rust.yml b/.github/workflows/ci-rust.yml
index 9aeeed4..c758352 100644
--- a/.github/workflows/ci-rust.yml
+++ b/.github/workflows/ci-rust.yml
@@ -7,6 +7,19 @@ on:
     branches: ["rust", "release/rust*"]
 
 jobs:
+  guard:
+    name: Shared Files Guard
+    runs-on: ubuntu-latest
+    if: github.event_name == 'pull_request'
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v5
+        with:
+          fetch-depth: 0
+
+      - name: Check shared files
+        uses: ./.github/actions/shared-files-guard
+
   fmt:
     name: Rust & Docs Formatting
     runs-on: ubuntu-latest