diff --git a/tests/.coveralls.yml b/tests/.coveralls.yml
deleted file mode 100644
index 403f48b..0000000
--- a/tests/.coveralls.yml
+++ /dev/null
@@ -1,4 +0,0 @@
-# for php-coveralls
-service_name: github-actions
-coverage_clover: coverage.xml
-json_path: coverage.json
\ No newline at end of file
diff --git a/tests/Cases/DI/McpExtension.discovery.phpt b/tests/Cases/DI/McpExtension.discovery.phpt
index 968fd1a..dbb091a 100644
--- a/tests/Cases/DI/McpExtension.discovery.phpt
+++ b/tests/Cases/DI/McpExtension.discovery.phpt
@@ -14,6 +14,9 @@ use Tester\Assert;
 use Tests\Toolkit\ServerInspector;
 
 require_once __DIR__ . '/../../bootstrap.php';
+require_once __DIR__ . '/../../Mocks/Mcp/CalculatorTool.php';
+require_once __DIR__ . '/../../Mocks/Mcp/FileResource.php';
+require_once __DIR__ . '/../../Mocks/Mcp/GreetingPrompt.php';
 
 // Test discovery disabled (explicitly disabled, default is enabled)
 Toolkit::test(function (): void {