1 files changed, 18 insertions, 0 deletions
diff --git a/source/library/fetcher/websocket.ts b/source/library/fetcher/websocket.ts
new file mode 100644
index 0000000..6376e76
--- /dev/null
+++ b/source/library/fetcher/websocket.ts
@@ -0,0 +1,18 @@
+
+
+
+/*** UTILITY ------------------------------------------ ***/
+
+import type { Fetcher, FetcherOptions } from "./types.ts";
+
+/*** EXPORT ------------------------------------------- ***/
+
+/**
+ * WebSocket fetcher for graphql-ws protocol.
+ * Stub implementation — see PLAN.md stage v0.4 for full implementation.
+ */
+export function createWsFetcher(_options: FetcherOptions): Fetcher {
+  return () => {
+    throw new Error("WebSocket fetcher not yet implemented — see PLAN.md v0.4");
+  };
+}