diff --git a/.ci.yaml b/.ci.yaml
index 5b9bf34750..561b96d617 100644
--- a/.ci.yaml
+++ b/.ci.yaml
@@ -1099,6 +1099,21 @@ targets:
       - bin/**
       - .ci.yaml
 
+  - name: Linux realm_checker
+    bringup: true
+    recipe: flutter/flutter_drone
+    timeout: 60
+    properties:
+      add_recipes_cq: "true"
+      shard: realm_checker
+      tags: >
+        ["framework", "hostonly", "shard", "linux"]
+    runIf:
+      - dev/**
+      - packages/flutter_tools/**
+      - bin/**
+      - .ci.yaml
+
   - name: Linux web_benchmarks_canvaskit
     recipe: devicelab/devicelab_drone
     presubmit: false
diff --git a/TESTOWNERS b/TESTOWNERS
index 51705091ca..d268226c3a 100644
--- a/TESTOWNERS
+++ b/TESTOWNERS
@@ -340,3 +340,4 @@
 # web_long_running_tests @yjbanov @flutter/web
 # web_tests @yjbanov @flutter/web
 # web_tool_tests @eliasyishak @flutter/tool
+# realm_checker @jacksongardner @flutter/tool
diff --git a/dev/bots/test.dart b/dev/bots/test.dart
index 046dae199b..fa0b884c2a 100644
--- a/dev/bots/test.dart
+++ b/dev/bots/test.dart
@@ -262,6 +262,7 @@ Future<void> main(List<String> args) async {
       'web_long_running_tests': _runWebLongRunningTests,
       'flutter_plugins': _runFlutterPackagesTests,
       'skp_generator': _runSkpGeneratorTests,
+      'realm_checker': _runRealmCheckerTest,
       kTestHarnessShardName: _runTestHarnessTests, // Used for testing this script; also run as part of SHARD=framework_tests, SUBSHARD=misc.
     });
   } catch (error, stackTrace) {
@@ -1568,6 +1569,13 @@ Future<void> _runSkpGeneratorTests() async {
   );
 }
 
+Future<void> _runRealmCheckerTest() async {
+  final String engineRealm = File(engineRealmFile).readAsStringSync().trim();
+  if (engineRealm.isNotEmpty) {
+    foundError(<String>['The checked-in engine.realm file must be empty.']);
+  }
+}
+
 // The `chromedriver` process created by this test.
 //
 // If an existing chromedriver is already available on port 4444, the existing