diff --git a/AGENTS.md b/AGENTS.md
index fdf68a0..48b1284 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -66,6 +66,16 @@ Strong success criteria let you loop independently. Weak criteria ("make it work
 - Example: `pwsh -Command "rg -n 'class' src/"`
 - Example: `pwsh -Command "./build.bat"`
 
+## 6. Verify Unity Scripts After Changes
+
+**After modifying files under `src/Unity/Assets/Scripts/`, verify compilation:**
+
+```bash
+pwsh scripts/check_unity_build.ps1
+```
+
+This runs Unity in batch mode and exits 0 if compilation succeeds, non-zero if errors.
+
 ---
 
 **These guidelines are working if:** fewer unnecessary changes in diffs, fewer rewrites due to overcomplication, and clarifying questions come before implementation rather than after mistakes.
diff --git a/scripts/check_unity_build.ps1 b/scripts/check_unity_build.ps1
new file mode 100644
index 0000000..e30dc40
--- /dev/null
+++ b/scripts/check_unity_build.ps1
@@ -0,0 +1,20 @@
+# Unity 脚本编译检查
+# 用法：在修改 src/Unity/Assets/Scripts/ 后运行此脚本
+# 退出码 0 = 编译成功，非 0 = 有错误
+
+$unityEditor = "C:\Program Files\Unity\Hub\Editor\2022.3.62f3c1\Editor\Unity.exe"
+$projectPath = "C:\Users\Tellme\apps\CounterDroneBackend\src\Unity"
+$logFile = "C:\Users\Tellme\apps\CounterDroneBackend\unity_build.log"
+
+Write-Host "Compiling Unity scripts..."
+& $unityEditor -batchmode -quit -projectPath $projectPath -executeMethod CompileCheck -logFile $logFile 2>&1 | Out-Null
+
+$errors = Select-String -Path $logFile -Pattern "error CS" -SimpleMatch
+if ($errors) {
+    Write-Host "BUILD FAILED:"
+    $errors | ForEach-Object { Write-Host $_.Line }
+    exit 1
+} else {
+    Write-Host "BUILD SUCCESS"
+    exit 0
+}