diff --git a/.gitignore b/.gitignore
index dda6549..8f118b2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,4 +4,5 @@ composer.lock
 coverage
 vendor
 examples/**/dev.log
+examples/**/cache
 examples/**/sessions
diff --git a/examples/http-combined-registration/server.php b/examples/http-combined-registration/server.php
index 660cf3c..f5d9862 100644
--- a/examples/http-combined-registration/server.php
+++ b/examples/http-combined-registration/server.php
@@ -31,7 +31,7 @@ $server = Server::builder()
     ->setLogger(logger())
     ->setContainer(container())
     ->setSession(new FileSessionStore(__DIR__.'/sessions'))
-    ->setDiscovery(__DIR__, ['.'])
+    ->setDiscovery(__DIR__)
     ->addTool([ManualHandlers::class, 'manualGreeter'])
     ->addResource(
         [ManualHandlers::class, 'getPriorityConfigManual'],
diff --git a/examples/http-complex-tool-schema/server.php b/examples/http-complex-tool-schema/server.php
index a3795a6..261ad24 100644
--- a/examples/http-complex-tool-schema/server.php
+++ b/examples/http-complex-tool-schema/server.php
@@ -30,7 +30,7 @@ $server = Server::builder()
     ->setLogger(logger())
     ->setContainer(container())
     ->setSession(new FileSessionStore(__DIR__.'/sessions'))
-    ->setDiscovery(__DIR__, ['.'])
+    ->setDiscovery(__DIR__)
     ->build();
 
 $transport = new StreamableHttpTransport($request, $psr17Factory, $psr17Factory);
diff --git a/examples/http-discovery-userprofile/server.php b/examples/http-discovery-userprofile/server.php
index 6f859c0..36c478e 100644
--- a/examples/http-discovery-userprofile/server.php
+++ b/examples/http-discovery-userprofile/server.php
@@ -30,7 +30,7 @@ $server = Server::builder()
     ->setLogger(logger())
     ->setContainer(container())
     ->setSession(new FileSessionStore(__DIR__.'/sessions'))
-    ->setDiscovery(__DIR__, ['.'])
+    ->setDiscovery(__DIR__)
     ->addTool(
         function (float $a, float $b, string $operation = 'add'): array {
             $result = match ($operation) {
diff --git a/examples/http-schema-showcase/server.php b/examples/http-schema-showcase/server.php
index e8d6d17..cc8c4e4 100644
--- a/examples/http-schema-showcase/server.php
+++ b/examples/http-schema-showcase/server.php
@@ -30,7 +30,7 @@ $server = Server::builder()
     ->setContainer(container())
     ->setLogger(logger())
     ->setSession(new FileSessionStore(__DIR__.'/sessions'))
-    ->setDiscovery(__DIR__, ['.'])
+    ->setDiscovery(__DIR__)
     ->build();
 
 $transport = new StreamableHttpTransport($request, $psr17Factory, $psr17Factory);
diff --git a/examples/stdio-cached-discovery/server.php b/examples/stdio-cached-discovery/server.php
index 2f10de0..38b5e9c 100644
--- a/examples/stdio-cached-discovery/server.php
+++ b/examples/stdio-cached-discovery/server.php
@@ -17,7 +17,7 @@ chdir(__DIR__);
 
 use Mcp\Server;
 use Mcp\Server\Transport\StdioTransport;
-use Symfony\Component\Cache\Adapter\ArrayAdapter;
+use Symfony\Component\Cache\Adapter\PhpFilesAdapter;
 use Symfony\Component\Cache\Psr16Cache;
 
 logger()->info('Starting MCP Cached Discovery Calculator Server...');
@@ -26,7 +26,7 @@ $server = Server::builder()
     ->setServerInfo('Cached Discovery Calculator', '1.0.0', 'Calculator with cached discovery for better performance.')
     ->setContainer(container())
     ->setLogger(logger())
-    ->setDiscovery(__DIR__, ['.'], [], new Psr16Cache(new ArrayAdapter()))
+    ->setDiscovery(__DIR__, cache: new Psr16Cache(new PhpFilesAdapter(directory: __DIR__.'/cache')))
     ->build();
 
 $transport = new StdioTransport(logger: logger());
diff --git a/examples/stdio-custom-dependencies/server.php b/examples/stdio-custom-dependencies/server.php
index 743fd78..659f449 100644
--- a/examples/stdio-custom-dependencies/server.php
+++ b/examples/stdio-custom-dependencies/server.php
@@ -34,7 +34,7 @@ $server = Server::builder()
     ->setServerInfo('Task Manager Server', '1.0.0')
     ->setLogger(logger())
     ->setContainer($container)
-    ->setDiscovery(__DIR__, ['.'])
+    ->setDiscovery(__DIR__)
     ->build();
 
 $transport = new StdioTransport(logger: logger());
diff --git a/examples/stdio-discovery-calculator/server.php b/examples/stdio-discovery-calculator/server.php
index fe22324..3f11348 100644
--- a/examples/stdio-discovery-calculator/server.php
+++ b/examples/stdio-discovery-calculator/server.php
@@ -23,7 +23,7 @@ $server = Server::builder()
     ->setInstructions('This server supports basic arithmetic operations: add, subtract, multiply, and divide. Send JSON-RPC requests to perform calculations.')
     ->setContainer(container())
     ->setLogger(logger())
-    ->setDiscovery(__DIR__, ['.'])
+    ->setDiscovery(__DIR__)
     ->build();
 
 $transport = new StdioTransport(logger: logger());
diff --git a/examples/stdio-env-variables/server.php b/examples/stdio-env-variables/server.php
index 62c0350..13c36bc 100644
--- a/examples/stdio-env-variables/server.php
+++ b/examples/stdio-env-variables/server.php
@@ -52,7 +52,7 @@ logger()->info('Starting MCP Stdio Environment Variable Example Server...');
 $server = Server::builder()
     ->setServerInfo('Env Var Server', '1.0.0')
     ->setLogger(logger())
-    ->setDiscovery(__DIR__, ['.'])
+    ->setDiscovery(__DIR__)
     ->build();
 
 $transport = new StdioTransport(logger: logger());