diff --git a/apps/ai-game-creator-shell/src-tauri/src/tests/configuration.rs b/apps/ai-game-creator-shell/src-tauri/src/tests/configuration.rs
index 56d9b20f3..a90ab61fe 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/tests/configuration.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/tests/configuration.rs
@@ -38,9 +38,9 @@ fn custom_llm_config_save_reload_and_selection_preserve_overlay_and_credentials(
     write_game_creator_config_atomically(&overlay, r#"{"llm":{"customEnabled":true,"apiKey":"fixture-key","baseUrl":"https://custom.example/v1","visibleModels":["a/v1","b:v2"]},"selectedModelId":"a/v1","selectedModelIsDefault":true}"#).unwrap();
     let mut config = read_game_creator_app_config().unwrap().config;
     assert_eq!(config.llm.model, "a/v1");
-    let selected = select_game_creator_model("b:v2".into(), false, None).unwrap();
+    let selected = select_game_creator_model("b:v2".into(), false, None, None).unwrap();
     assert_eq!(selected.config.llm.model, "b:v2");
-    assert!(select_game_creator_model("not-listed".into(), false, None).is_err());
+    assert!(select_game_creator_model("not-listed".into(), false, None, None).is_err());
     config.llm.visible_models = vec!["b:v2".into()];
     config.llm.api_key = "changed-fixture-key".into();
     write_game_creator_app_config(config).unwrap();
@@ -817,6 +817,7 @@ fn app_config_commands_write_runtime_config_file() {
         agent_llm,
         selected_model_id: "default".to_string(),
         selected_model_is_default: false,
+        selected_model_protocol: None,
     })
     .expect("write runtime config");
 
@@ -964,7 +965,7 @@ fn app_config_model_selection_only_updates_model_overlay() {
     )
     .expect("write overlay");
     let saved =
-        select_game_creator_model("new-model".to_string(), true, None).expect("select model");
+        select_game_creator_model("new-model".to_string(), true, None, None).expect("select model");
     let effective = load_game_creator_app_config().expect("effective config");
     assert_eq!(saved.config.selected_model_id, "new-model");
     assert_eq!(effective.selected_model_id, "new-model");
@@ -986,13 +987,13 @@ fn model_selection_default_flag_round_trips() {
     fs::create_dir_all(&root).expect("runtime config dir");
     let _guard = use_test_runtime_config_dir(root.clone());
 
-    let saved =
-        select_game_creator_model("quality".to_string(), true, None).expect("select default model");
+    let saved = select_game_creator_model("quality".to_string(), true, None, None)
+        .expect("select default model");
     assert_eq!(saved.config.selected_model_id, "quality");
     assert!(saved.config.selected_model_is_default);
 
-    let saved =
-        select_game_creator_model("fast".to_string(), false, None).expect("select explicit model");
+    let saved = select_game_creator_model("fast".to_string(), false, None, None)
+        .expect("select explicit model");
     assert_eq!(saved.config.selected_model_id, "fast");
     assert!(!saved.config.selected_model_is_default);
 
@@ -1021,6 +1022,7 @@ fn app_config_write_rejects_invalid_api_kind() {
         agent_llm: BTreeMap::new(),
         selected_model_id: "default".to_string(),
         selected_model_is_default: false,
+        selected_model_protocol: None,
     });
 
     assert!(result
@@ -1048,6 +1050,7 @@ fn app_config_write_rejects_invalid_reasoning_effort() {
         agent_llm: BTreeMap::new(),
         selected_model_id: "default".to_string(),
         selected_model_is_default: false,
+        selected_model_protocol: None,
     });
 
     assert!(result
@@ -1075,6 +1078,7 @@ fn app_config_write_rejects_too_small_request_timeout() {
         agent_llm: BTreeMap::new(),
         selected_model_id: "default".to_string(),
         selected_model_is_default: false,
+        selected_model_protocol: None,
     });
 
     assert!(result