diff --git a/engine/src/flutter/shell/platform/fuchsia/dart_runner/meta/common.shard.cml b/engine/src/flutter/shell/platform/fuchsia/dart_runner/meta/common.shard.cml
index e10a982711..bb473bfa63 100644
--- a/engine/src/flutter/shell/platform/fuchsia/dart_runner/meta/common.shard.cml
+++ b/engine/src/flutter/shell/platform/fuchsia/dart_runner/meta/common.shard.cml
@@ -2,6 +2,9 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 {
+    // TODO(https://fxbug.dev/404543928): Remove this shard usage when possible
+    // and replace with explicit routes.
+    include: [ "syslog/client.shard.cml" ],
     use: [
         // This is used by the Dart VM to communicate from Dart code to C++ code.
         {
@@ -26,9 +29,7 @@
             protocol: [
                 "fuchsia.device.NameProvider",  // For fdio uname()
                 "fuchsia.feedback.CrashReporter",
-                "fuchsia.inspect.InspectSink",  // For inspect
                 "fuchsia.intl.PropertyProvider",  // For dartVM timezone support
-                "fuchsia.logger.LogSink",  // For syslog
                 "fuchsia.net.name.Lookup",  // For fdio sockets
                 "fuchsia.posix.socket.Provider",  // For fdio sockets
             ],
diff --git a/engine/src/flutter/shell/platform/fuchsia/dart_runner/tests/startup_integration_test/dart_aot_runner/dart-aot-runner-integration-test.cc b/engine/src/flutter/shell/platform/fuchsia/dart_runner/tests/startup_integration_test/dart_aot_runner/dart-aot-runner-integration-test.cc
index 7e762ae601..b0e262fb63 100644
--- a/engine/src/flutter/shell/platform/fuchsia/dart_runner/tests/startup_integration_test/dart_aot_runner/dart-aot-runner-integration-test.cc
+++ b/engine/src/flutter/shell/platform/fuchsia/dart_runner/tests/startup_integration_test/dart_aot_runner/dart-aot-runner-integration-test.cc
@@ -17,6 +17,7 @@ namespace {
 // Types imported for the realm_builder library
 using component_testing::ChildOptions;
 using component_testing::ChildRef;
+using component_testing::Dictionary;
 using component_testing::Directory;
 using component_testing::ParentRef;
 using component_testing::Protocol;
@@ -88,6 +89,11 @@ TEST_F(RealmBuilderTest, DartRunnerStartsUp) {
             .source = ParentRef(),
             .targets = {kDartAotRunnerRef, kDartAotEchoServerRef}});
 
+  realm_builder.AddRoute(
+      Route{.capabilities = {Dictionary{"diagnostics"}},
+            .source = ParentRef(),
+            .targets = {kDartAotRunnerRef, kDartAotEchoServerRef}});
+
   // Route the Echo FIDL protocol, this allows the Dart echo server to
   // communicate with the Realm Builder
   realm_builder.AddRoute(Route{.capabilities = {Protocol{"dart.test.Echo"}},
diff --git a/engine/src/flutter/shell/platform/fuchsia/dart_runner/tests/startup_integration_test/dart_aot_runner/meta/dart-aot-runner-integration-test.cml b/engine/src/flutter/shell/platform/fuchsia/dart_runner/tests/startup_integration_test/dart_aot_runner/meta/dart-aot-runner-integration-test.cml
index 83c4cd18ca..3733d92773 100644
--- a/engine/src/flutter/shell/platform/fuchsia/dart_runner/tests/startup_integration_test/dart_aot_runner/meta/dart-aot-runner-integration-test.cml
+++ b/engine/src/flutter/shell/platform/fuchsia/dart_runner/tests/startup_integration_test/dart_aot_runner/meta/dart-aot-runner-integration-test.cml
@@ -10,6 +10,8 @@
         // This test needs both the vulkan facet and the hermetic-tier-2 facet,
         // so we are forced to make it a system test.
         "sys/testing/system-test.shard.cml",
+        "syslog/client.shard.cml",
+        "inspect/client.shard.cml",
     ],
     program: {
         binary: "bin/app",
@@ -19,8 +21,6 @@
             // Offer capabilities needed by components in this test realm.
             // Keep it minimal, describe only what's actually needed.
             protocol: [
-                "fuchsia.inspect.InspectSink",
-                "fuchsia.logger.LogSink",
                 "fuchsia.sysmem.Allocator",
                 "fuchsia.sysmem2.Allocator",
                 "fuchsia.tracing.provider.Registry",
diff --git a/engine/src/flutter/shell/platform/fuchsia/dart_runner/tests/startup_integration_test/dart_echo_server/meta/dart-aot-echo-server.cml b/engine/src/flutter/shell/platform/fuchsia/dart_runner/tests/startup_integration_test/dart_echo_server/meta/dart-aot-echo-server.cml
index 10b336bdf9..b0c0971e47 100644
--- a/engine/src/flutter/shell/platform/fuchsia/dart_runner/tests/startup_integration_test/dart_echo_server/meta/dart-aot-echo-server.cml
+++ b/engine/src/flutter/shell/platform/fuchsia/dart_runner/tests/startup_integration_test/dart_echo_server/meta/dart-aot-echo-server.cml
@@ -3,7 +3,7 @@
 // found in the LICENSE file.
 
 {
-    include: [ "syslog/client.shard.cml" ],
+    include: [ "syslog/client.shard.cml", "inspect/client.shard.cml" ],
     program: {
         data: "data/dart-aot-echo-server",
         runner: "dart_aot_runner",
diff --git a/engine/src/flutter/shell/platform/fuchsia/dart_runner/tests/startup_integration_test/dart_jit_runner/dart-jit-runner-integration-test.cc b/engine/src/flutter/shell/platform/fuchsia/dart_runner/tests/startup_integration_test/dart_jit_runner/dart-jit-runner-integration-test.cc
index b8b4ee30ce..ca078d4428 100644
--- a/engine/src/flutter/shell/platform/fuchsia/dart_runner/tests/startup_integration_test/dart_jit_runner/dart-jit-runner-integration-test.cc
+++ b/engine/src/flutter/shell/platform/fuchsia/dart_runner/tests/startup_integration_test/dart_jit_runner/dart-jit-runner-integration-test.cc
@@ -17,6 +17,7 @@ namespace {
 // Types imported for the realm_builder library
 using component_testing::ChildOptions;
 using component_testing::ChildRef;
+using component_testing::Dictionary;
 using component_testing::Directory;
 using component_testing::ParentRef;
 using component_testing::Protocol;
@@ -86,6 +87,11 @@ TEST_F(RealmBuilderTest, DartRunnerStartsUp) {
             .source = ParentRef(),
             .targets = {kDartJitRunnerRef, kDartJitEchoServerRef}});
 
+  realm_builder.AddRoute(
+      Route{.capabilities = {Dictionary{"diagnostics"}},
+            .source = ParentRef(),
+            .targets = {kDartJitRunnerRef, kDartJitEchoServerRef}});
+
   // Route the Echo FIDL protocol, this allows the Dart echo server to
   // communicate with the Realm Builder
   realm_builder.AddRoute(Route{.capabilities = {Protocol{"dart.test.Echo"}},
diff --git a/engine/src/flutter/shell/platform/fuchsia/dart_runner/tests/startup_integration_test/dart_jit_runner/meta/dart-jit-runner-integration-test.cml b/engine/src/flutter/shell/platform/fuchsia/dart_runner/tests/startup_integration_test/dart_jit_runner/meta/dart-jit-runner-integration-test.cml
index 4b0c450fff..4564ab7b24 100644
--- a/engine/src/flutter/shell/platform/fuchsia/dart_runner/tests/startup_integration_test/dart_jit_runner/meta/dart-jit-runner-integration-test.cml
+++ b/engine/src/flutter/shell/platform/fuchsia/dart_runner/tests/startup_integration_test/dart_jit_runner/meta/dart-jit-runner-integration-test.cml
@@ -19,8 +19,6 @@
             // Offer capabilities needed by components in this test realm.
             // Keep it minimal, describe only what's actually needed.
             protocol: [
-                "fuchsia.inspect.InspectSink",
-                "fuchsia.logger.LogSink",
                 "fuchsia.sysmem.Allocator",
                 "fuchsia.sysmem2.Allocator",
                 "fuchsia.tracing.provider.Registry",
diff --git a/engine/src/flutter/shell/platform/fuchsia/flutter/meta/common.shard.cml b/engine/src/flutter/shell/platform/fuchsia/flutter/meta/common.shard.cml
index 81e38affa8..ff2a2b6e4b 100644
--- a/engine/src/flutter/shell/platform/fuchsia/flutter/meta/common.shard.cml
+++ b/engine/src/flutter/shell/platform/fuchsia/flutter/meta/common.shard.cml
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file
 {
+    include: [ "syslog/client.shard.cml", "inspect/client.shard.cml" ],
     use: [
         // This is used by the Dart VM to communicate from Dart code to C++ code.
         {
@@ -33,9 +34,7 @@
                 "fuchsia.device.NameProvider",
                 "fuchsia.feedback.CrashReporter",
                 "fuchsia.fonts.Provider",
-                "fuchsia.inspect.InspectSink", // Copied from inspect/client.shard.cml.
                 "fuchsia.intl.PropertyProvider",
-                "fuchsia.logger.LogSink", // Copied from syslog/client.shard.cml.
                 "fuchsia.media.ProfileProvider",
                 "fuchsia.memorypressure.Provider",
                 "fuchsia.scheduler.RoleManager",
diff --git a/engine/src/flutter/shell/platform/fuchsia/flutter/tests/integration/embedder/meta/flutter-embedder-test.cml b/engine/src/flutter/shell/platform/fuchsia/flutter/tests/integration/embedder/meta/flutter-embedder-test.cml
index 56594825a7..28e1a19c52 100644
--- a/engine/src/flutter/shell/platform/fuchsia/flutter/tests/integration/embedder/meta/flutter-embedder-test.cml
+++ b/engine/src/flutter/shell/platform/fuchsia/flutter/tests/integration/embedder/meta/flutter-embedder-test.cml
@@ -9,6 +9,10 @@
         // This test needs both the vulkan facet and the hermetic-tier-2 facet,
         // so we are forced to make it a system test.
         "sys/testing/system-test.shard.cml",
+        // TODO(https://fxbug.dev/404543928): Remove this shard usage when possible
+        // and replace with explicit routes.
+        "syslog/client.shard.cml",
+        "inspect/client.shard.cml",
     ],
     program: {
         binary: "bin/app",
@@ -18,8 +22,6 @@
             // Offer capabilities needed by components in this test realm.
             // Keep it minimal, describe only what's actually needed.
             protocol: [
-                "fuchsia.inspect.InspectSink",
-                "fuchsia.logger.LogSink",
                 "fuchsia.sysmem.Allocator",
                 "fuchsia.sysmem2.Allocator",
                 "fuchsia.tracing.provider.Registry",
diff --git a/engine/src/flutter/shell/platform/fuchsia/flutter/tests/integration/mouse-input/meta/mouse-input-test.cml b/engine/src/flutter/shell/platform/fuchsia/flutter/tests/integration/mouse-input/meta/mouse-input-test.cml
index b5c717e989..a95f67901e 100644
--- a/engine/src/flutter/shell/platform/fuchsia/flutter/tests/integration/mouse-input/meta/mouse-input-test.cml
+++ b/engine/src/flutter/shell/platform/fuchsia/flutter/tests/integration/mouse-input/meta/mouse-input-test.cml
@@ -9,6 +9,11 @@
         // This test needs both the vulkan facet and the hermetic-tier-2 facet,
         // so we are forced to make it a system test.
         "sys/testing/system-test.shard.cml",
+
+        // TODO(https://fxbug.dev/404543928): Remove this shard usage when possible
+        // and replace with explicit routes.
+        "syslog/client.shard.cml",
+        "inspect/client.shard.cml",
     ],
     program: {
         binary: "bin/app",
@@ -25,10 +30,8 @@
             // Offer capabilities needed by components in this test realm.
             // Keep it minimal, describe only what's actually needed.
             protocol: [
-                "fuchsia.inspect.InspectSink",
                 "fuchsia.kernel.RootJobForInspect",
                 "fuchsia.kernel.Stats",
-                "fuchsia.logger.LogSink",
                 "fuchsia.scheduler.ProfileProvider",
                 "fuchsia.sysmem.Allocator",
                 "fuchsia.sysmem2.Allocator",
diff --git a/engine/src/flutter/shell/platform/fuchsia/flutter/tests/integration/text-input/meta/text-input-test.cml b/engine/src/flutter/shell/platform/fuchsia/flutter/tests/integration/text-input/meta/text-input-test.cml
index 22008d7866..e6339ed206 100644
--- a/engine/src/flutter/shell/platform/fuchsia/flutter/tests/integration/text-input/meta/text-input-test.cml
+++ b/engine/src/flutter/shell/platform/fuchsia/flutter/tests/integration/text-input/meta/text-input-test.cml
@@ -10,6 +10,10 @@
         // so we are forced to make it a system test.
         "sys/testing/system-test.shard.cml",
 
+        // TODO(https://fxbug.dev/404543928): Remove this shard usage when possible
+        // and replace with explicit routes.
+        "syslog/client.shard.cml",
+        "inspect/client.shard.cml",
     ],
     program: {
         binary: "bin/app",
@@ -24,10 +28,8 @@
     offer: [
         {
             protocol: [
-                "fuchsia.inspect.InspectSink",
                 "fuchsia.kernel.RootJobForInspect",
                 "fuchsia.kernel.Stats",
-                "fuchsia.logger.LogSink",
                 "fuchsia.scheduler.ProfileProvider",
                 "fuchsia.sysmem.Allocator",
                 "fuchsia.sysmem2.Allocator",
diff --git a/engine/src/flutter/shell/platform/fuchsia/flutter/tests/integration/touch-input/meta/touch-input-test.cml b/engine/src/flutter/shell/platform/fuchsia/flutter/tests/integration/touch-input/meta/touch-input-test.cml
index 10dbde87ae..fd510d5da1 100644
--- a/engine/src/flutter/shell/platform/fuchsia/flutter/tests/integration/touch-input/meta/touch-input-test.cml
+++ b/engine/src/flutter/shell/platform/fuchsia/flutter/tests/integration/touch-input/meta/touch-input-test.cml
@@ -9,6 +9,11 @@
         // This test needs both the vulkan facet and the hermetic-tier-2 facet,
         // so we are forced to make it a system test.
         "sys/testing/system-test.shard.cml",
+
+        // TODO(https://fxbug.dev/404543928): Remove this shard usage when possible
+        // and replace with explicit routes.
+        "syslog/client.shard.cml",
+        "inspect/client.shard.cml",
     ],
     program: {
         binary: "bin/app",
@@ -25,10 +30,8 @@
             // Offer capabilities needed by components in this test realm.
             // Keep it minimal, describe only what's actually needed.
             protocol: [
-                "fuchsia.inspect.InspectSink",
                 "fuchsia.kernel.RootJobForInspect",
                 "fuchsia.kernel.Stats",
-                "fuchsia.logger.LogSink",
                 "fuchsia.scheduler.ProfileProvider",
                 "fuchsia.sysmem.Allocator",
                 "fuchsia.sysmem2.Allocator",
diff --git a/engine/src/flutter/testing/fuchsia/meta/test_suite.cml b/engine/src/flutter/testing/fuchsia/meta/test_suite.cml
index 39bcd4ad6f..efd05dbbef 100644
--- a/engine/src/flutter/testing/fuchsia/meta/test_suite.cml
+++ b/engine/src/flutter/testing/fuchsia/meta/test_suite.cml
@@ -1,6 +1,11 @@
 {
     include: [
          "sys/component/realm_builder_absolute.shard.cml",
+
+        // TODO(https://fxbug.dev/404543928): Remove this shard usage when possible
+        // and replace with explicit routes.
+        "syslog/client.shard.cml",
+        "inspect/client.shard.cml",
     ],
     facets: {
         // shell_unittests and embedder_unittests require vulkan to function.
@@ -31,7 +36,6 @@
     use: [
         {
             protocol: [
-                "fuchsia.logger.LogSink",
                 "fuchsia.process.Launcher",
                 "fuchsia.tracing.provider.Registry",
                 "fuchsia.vulkan.loader.Loader",