diff --git a/AconfigFlags.bp b/AconfigFlags.bp
index 3a772e1..e3f45a9 100644
--- a/AconfigFlags.bp
+++ b/AconfigFlags.bp
@@ -62,6 +62,7 @@
     ":surfaceflinger_flags_java_lib{.generated_srcjars}",
     ":android.view.contentcapture.flags-aconfig-java{.generated_srcjars}",
     ":android.hardware.usb.flags-aconfig-java{.generated_srcjars}",
+    ":android.tracing.flags-aconfig-java{.generated_srcjars}",
 ]
 
 filegroup {
@@ -695,3 +696,16 @@
     aconfig_declarations: "android.hardware.usb.flags-aconfig",
     defaults: ["framework-minus-apex-aconfig-java-defaults"],
 }
+
+// WindowingTools
+aconfig_declarations {
+    name: "android.tracing.flags-aconfig",
+    package: "android.tracing",
+    srcs: ["core/java/android/tracing/flags.aconfig"],
+}
+
+java_aconfig_library {
+    name: "android.tracing.flags-aconfig-java",
+    aconfig_declarations: "android.tracing.flags-aconfig",
+    defaults: ["framework-minus-apex-aconfig-java-defaults"],
+}
diff --git a/core/java/android/tracing/flags.aconfig b/core/java/android/tracing/flags.aconfig
new file mode 100644
index 0000000..4b4f6d6
--- /dev/null
+++ b/core/java/android/tracing/flags.aconfig
@@ -0,0 +1,8 @@
+package: "android.tracing"
+
+flag {
+    name: "perfetto_transition_tracing"
+    namespace: "windowing_tools"
+    description: "Move transition tracing to Perfetto"
+    bug: "309630341"
+}
\ No newline at end of file