diff --git a/scripts/check-f3-1-web-contract.sh b/scripts/check-f3-1-web-contract.sh
new file mode 100644
index 0000000..83acb70
--- /dev/null
+++ b/scripts/check-f3-1-web-contract.sh
@@ -0,0 +1,37 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+
+ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+LAYOUT="$ROOT/web-v2/src/layout/AppLayout.tsx"
+APP="$ROOT/web-v2/src/app/App.tsx"
+PAGE="$ROOT/web-v2/src/pages/InventoryCreatePage.tsx"
+
+for file in "$LAYOUT" "$APP" "$PAGE"; do
+  test -f "$file" || {
+    echo "F3.1 WEB contract: falta $file"
+    exit 1
+  }
+done
+
+if grep -Fq "label: 'Relevamientos'" "$LAYOUT"; then
+  echo "F3.1 WEB contract: Relevamientos no debe volver al menú principal"
+  exit 1
+fi
+
+grep -Fq 'path="/relevamiento/*"' "$APP"
+grep -Fq 'Navigate to="/inventarios" replace' "$APP"
+grep -Fq 'path="/inventarios/nuevo"' "$APP"
+grep -Fq 'InventoryCreatePage' "$APP"
+
+for kind in AREA YACIMIENTO INSTALACION SUBINSTALACION; do
+  grep -Fq "kind: '$kind'" "$PAGE"
+done
+
+if grep -Fq "kind: 'EQUIPO'" "$PAGE"; then
+  echo "F3.1 WEB contract: el alta guiada no debe restaurar EQUIPO como quinto nivel estructural"
+  exit 1
+fi
+
+grep -Fq 'getInventoryFamilyFindings' "$PAGE"
+
+echo 'F3.1 WEB contract: OK'