diff --git a/apps/ai-game-creator-shell/.taurignore b/apps/ai-game-creator-shell/.taurignore
new file mode 100644
index 000000000..8ec126556
--- /dev/null
+++ b/apps/ai-game-creator-shell/.taurignore
@@ -0,0 +1,4 @@
+# resources/plugins 由 build.rs 从 plugins/ 复制生成，属于构建产物。
+# 它在 dev 监听范围内，重新生成会让 Tauri dev 误判为源码改动而触发
+# “构建 -> 监听 -> 再构建”的自触发循环。
+resources/plugins/
diff --git a/apps/ai-game-creator-shell/src-tauri/.taurignore b/apps/ai-game-creator-shell/src-tauri/.taurignore
new file mode 100644
index 000000000..8ec126556
--- /dev/null
+++ b/apps/ai-game-creator-shell/src-tauri/.taurignore
@@ -0,0 +1,4 @@
+# resources/plugins 由 build.rs 从 plugins/ 复制生成，属于构建产物。
+# 它在 dev 监听范围内，重新生成会让 Tauri dev 误判为源码改动而触发
+# “构建 -> 监听 -> 再构建”的自触发循环。
+resources/plugins/
diff --git a/apps/ai-game-creator-shell/src-tauri/build.rs b/apps/ai-game-creator-shell/src-tauri/build.rs
index 4382abeef..e9f6642e0 100644
--- a/apps/ai-game-creator-shell/src-tauri/build.rs
+++ b/apps/ai-game-creator-shell/src-tauri/build.rs
@@ -293,6 +293,20 @@ fn stage_plugin_workspace(manifest_dir: &std::path::Path) {
     }
 }
 
+#[cfg(windows)]
+fn stage_plugin_file(source: &std::path::Path, destination: &std::path::Path) {
+    let Ok(bytes) = std::fs::read(source) else {
+        return;
+    };
+    if std::fs::read(destination).is_ok_and(|existing| existing == bytes) {
+        return;
+    }
+    if let Some(parent) = destination.parent() {
+        std::fs::create_dir_all(parent).expect("创建插件资源目录失败");
+    }
+    std::fs::write(destination, bytes).expect("复制插件资源失败");
+}
+
 #[cfg(windows)]
 fn copy_plugin_tree(source: &std::path::Path, destination: &std::path::Path) {
     let entries = match std::fs::read_dir(source) {
@@ -317,7 +331,7 @@ fn copy_plugin_tree(source: &std::path::Path, destination: &std::path::Path) {
             if name.contains(".test.") {
                 continue;
             }
-            copy_plugin_file(&path, &target);
+            stage_plugin_file(&path, &target);
         }
     }
 }