diff --git a/apps/ai-game-creator-shell/src-tauri/src/ui_editor/commands/ui_design_suggestion.rs b/apps/ai-game-creator-shell/src-tauri/src/ui_editor/commands/ui_design_suggestion.rs
index 749c12f0f..b32c6f448 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/ui_editor/commands/ui_design_suggestion.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/ui_editor/commands/ui_design_suggestion.rs
@@ -1,8 +1,8 @@
 use crate::config::build_game_creator_llm_client_from_llm_config;
 use crate::config::load_game_creator_app_config;
 use crate::ui_editor::commands::utils::{
-    read_ui_reference_image_data_url, request_ui_editor_llm, required_tool_arguments,
-    strict_json_schema,
+    parse_limited_llm_tool_arguments, read_ui_reference_image_data_url, request_ui_editor_llm,
+    required_tool_call_arguments, strict_json_schema,
 };
 use crate::ui_editor::resource::ui_design_image::UIDesignImageRole;
 use crate::ui_editor::state::State;
@@ -214,11 +214,17 @@ pub(crate) async fn suggest_ui_design_semantic_impl(
         !response.text.trim().is_empty(),
         response.tool_calls.len()
     );
-    let arguments =
-        required_tool_arguments(&response, "suggest_ui_design_semantics").map_err(|error| {
-            app_log!("ui_design_suggestion.error stage=parse_arguments error={error}");
-            format!("LLM 响应无效（详情：UI 语义建议工具参数无效：{error}）")
+    let arguments = required_tool_call_arguments(&response, "suggest_ui_design_semantics")
+        .map_err(|error| {
+            app_log!(
+                "ui_design_suggestion.error stage=parse_tool_call reason=missing_tool_call error={error}"
+            );
+            "LLM 响应无效（详情：未返回 suggest_ui_design_semantics 工具调用）".to_string()
         })?;
+    let arguments = parse_limited_llm_tool_arguments(arguments).map_err(|error| {
+        app_log!("ui_design_suggestion.error stage=parse_arguments error={error}");
+        format!("LLM 响应无效（详情：UI 语义建议工具参数无效：{error}）")
+    })?;
     validate_suggestion_response_shape(&arguments).map_err(|error| {
         app_log!("ui_design_suggestion.error stage=validate_arguments error={error}");
         format!("LLM 响应无效（详情：{error}）")