diff --git a/client/tests/test_protocol_v6.gd b/client/tests/test_protocol_bridge.gd
similarity index 98%
rename from client/tests/test_protocol_v6.gd
rename to client/tests/test_protocol_bridge.gd
index 5d42bbf62..eeb243b11 100644
--- a/client/tests/test_protocol_v6.gd
+++ b/client/tests/test_protocol_bridge.gd
@@ -1,8 +1,9 @@
-## D-030 Layer 1: Protocol v6 tests for ObserverSnapshot bridge upgrade (#449).
+## D-030 Layer 1: Protocol bridge tests for ObserverSnapshot features.
 ## Validates player_stance (D-053) and player_inventory (D-065) decode,
-## GameState storage, SimBridge test mode, and input encoding for stance toggles.
+## GameState storage, SimBridge test mode, input encoding for stance toggles,
+## protocol version checks, and fixture round-trips.
 ## Spec refs: D-053, D-065, D-020, #449
-class_name TestProtocolV6
+class_name TestProtocolBridge
 extends GdUnitTestSuite
 
 const FIXTURE_DIR = "res://tests/fixtures/msgpack/"