diff --git a/lib/core/result.dart b/lib/core/result.dart
new file mode 100644
index 0000000..989cd8a
--- /dev/null
+++ b/lib/core/result.dart
@@ -0,0 +1,15 @@
+/// Type résultat scellé : encapsule un succès ou un échec sans propager d'exception nue.
+sealed class Result<T> {
+  const Result();
+}
+
+class Success<T> extends Result<T> {
+  final T value;
+  const Success(this.value);
+}
+
+class Failure<T> extends Result<T> {
+  final Object error;
+  final StackTrace? stackTrace;
+  const Failure(this.error, [this.stackTrace]);
+}