diff --git a/.github/workflows/code-quality.yaml b/.github/workflows/code-quality.yaml
index 67d661e85..9e7be91ec 100644
--- a/.github/workflows/code-quality.yaml
+++ b/.github/workflows/code-quality.yaml
@@ -65,3 +65,7 @@ jobs:
                   source .github/workflows/.utils.sh
 
                   echo "$PACKAGES" | xargs -n1 | parallel -j +3 "_run_task {} '(cd src/{} && $COMPOSER_UP && $PHPSTAN)'"
+
+            - name: Run PHPStan on examples
+              run: |
+                  cd examples/ && $COMPOSER_UP && $PHPSTAN
diff --git a/examples/composer.json b/examples/composer.json
index be2356139..59823e732 100644
--- a/examples/composer.json
+++ b/examples/composer.json
@@ -30,11 +30,19 @@
         "symfony/process": "^6.4 || ^7.0",
         "symfony/var-dumper": "^6.4 || ^7.0"
     },
+    "require-dev": {
+        "phpstan/phpstan": "^2.1"
+    },
     "autoload": {
         "psr-4": {
             "Symfony\\AI\\Fixtures\\": "../fixtures/"
         }
     },
+    "autoload-dev": {
+        "psr-4": {
+            "Symfony\\AI\\PHPStan\\": "../.phpstan/"
+        }
+    },
     "config": {
         "allow-plugins": {
             "codewithkyrian/platform-package-installer": true,
diff --git a/examples/document/splitting.php b/examples/document/splitting.php
index c5c2d328a..8cea7e328 100644
--- a/examples/document/splitting.php
+++ b/examples/document/splitting.php
@@ -18,6 +18,6 @@
 $splitter = new TextSplitTransformer();
 $source = dirname(__DIR__, 2).'/fixtures/lorem.txt';
 
-$documents = iterator_to_array($splitter($loader($source)));
+$documents = iterator_to_array($splitter->transform($loader->load($source)));
 
 dump($documents);
diff --git a/examples/phpstan.dist.neon b/examples/phpstan.dist.neon
new file mode 100644
index 000000000..d23b0dad1
--- /dev/null
+++ b/examples/phpstan.dist.neon
@@ -0,0 +1,9 @@
+includes:
+    - ../.phpstan/extension.neon
+
+parameters:
+    level: 6
+    paths:
+        - ./
+    excludePaths:
+        - vendor
diff --git a/examples/rag/cache.php b/examples/rag/cache.php
index eebdfe3bf..6b5270f82 100644
--- a/examples/rag/cache.php
+++ b/examples/rag/cache.php
@@ -34,6 +34,7 @@
 $store = new CacheStore(new ArrayAdapter());
 
 // create embeddings and documents
+$documents = [];
 foreach (Movies::all() as $i => $movie) {
     $documents[] = new TextDocument(
         id: Uuid::v4(),
diff --git a/examples/rag/chromadb.php b/examples/rag/chromadb.php
index 676d464e0..9eed9fe23 100644
--- a/examples/rag/chromadb.php
+++ b/examples/rag/chromadb.php
@@ -34,7 +34,7 @@
 $store = new Store(
     (new Codewithkyrian\ChromaDB\Factory())
         ->withHost(env('CHROMADB_HOST'))
-        ->withPort(env('CHROMADB_PORT'))
+        ->withPort((int) env('CHROMADB_PORT'))
         ->connect(),
     'movies',
 );
diff --git a/examples/rag/in-memory.php b/examples/rag/in-memory.php
index 169620dd6..7f66cd325 100644
--- a/examples/rag/in-memory.php
+++ b/examples/rag/in-memory.php
@@ -33,6 +33,7 @@
 $store = new InMemoryStore();
 
 // create embeddings and documents
+$documents = [];
 foreach (Movies::all() as $i => $movie) {
     $documents[] = new TextDocument(
         id: Uuid::v4(),
diff --git a/examples/rag/mariadb-gemini.php b/examples/rag/mariadb-gemini.php
index fa82ebe1b..ec64e6e51 100644
--- a/examples/rag/mariadb-gemini.php
+++ b/examples/rag/mariadb-gemini.php
@@ -40,6 +40,7 @@
 );
 
 // create embeddings and documents
+$documents = [];
 foreach (Movies::all() as $i => $movie) {
     $documents[] = new TextDocument(
         id: Uuid::v4(),
diff --git a/examples/rag/mariadb-openai.php b/examples/rag/mariadb-openai.php
index e50870152..d1fbc541b 100644
--- a/examples/rag/mariadb-openai.php
+++ b/examples/rag/mariadb-openai.php
@@ -39,6 +39,7 @@
 );
 
 // create embeddings and documents
+$documents = [];
 foreach (Movies::all() as $i => $movie) {
     $documents[] = new TextDocument(
         id: Uuid::v4(),
diff --git a/examples/rag/mongodb.php b/examples/rag/mongodb.php
index a3abca415..47c5b52c7 100644
--- a/examples/rag/mongodb.php
+++ b/examples/rag/mongodb.php
@@ -40,6 +40,7 @@
 );
 
 // create embeddings and documents
+$documents = [];
 foreach (Movies::all() as $movie) {
     $documents[] = new TextDocument(
         id: Uuid::v4(),
diff --git a/examples/rag/pinecone.php b/examples/rag/pinecone.php
index 881a115be..b4d215309 100644
--- a/examples/rag/pinecone.php
+++ b/examples/rag/pinecone.php
@@ -34,6 +34,7 @@
 $store = new Store(Pinecone::client(env('PINECONE_API_KEY'), env('PINECONE_HOST')));
 
 // create embeddings and documents
+$documents = [];
 foreach (Movies::all() as $movie) {
     $documents[] = new TextDocument(
         id: Uuid::v4(),
diff --git a/examples/rag/qdrant.php b/examples/rag/qdrant.php
index 5f5725f0e..9fa19d5b4 100644
--- a/examples/rag/qdrant.php
+++ b/examples/rag/qdrant.php
@@ -41,6 +41,7 @@
 $store->setup();
 
 // create embeddings and documents
+$documents = [];
 foreach (Movies::all() as $movie) {
     $documents[] = new TextDocument(
         id: Uuid::v4(),
diff --git a/examples/vertexai/bootstrap.php b/examples/vertexai/bootstrap.php
index 081c7d719..daa3f8ae0 100644
--- a/examples/vertexai/bootstrap.php
+++ b/examples/vertexai/bootstrap.php
@@ -20,7 +20,7 @@ function adc_aware_http_client(): HttpClientInterface
 {
     $credentials = ApplicationDefaultCredentials::getCredentials(['https://www.googleapis.com/auth/cloud-platform']);
     $httpClient = HttpClient::create([
-        'auth_bearer' => $credentials?->fetchAuthToken()['access_token'] ?? null,
+        'auth_bearer' => $credentials->fetchAuthToken()['access_token'] ?? null,
     ]);
 
     if ($httpClient instanceof LoggerAwareInterface) {