diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index 37c2245..da4c573 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -67,3 +67,22 @@ jobs:
       - name: qmllint
         working-directory: framework/skeleton
         run: cmake --build build/qml --target all_qmllint
+
+      - name: Install FrankenPHP
+        run: |
+          curl -fsSL -o /usr/local/bin/frankenphp \
+            https://github.com/php/frankenphp/releases/download/v1.12.2/frankenphp-linux-x86_64
+          chmod +x /usr/local/bin/frankenphp
+
+      - name: Maker-output snapshot test
+        run: framework/php/tests/snapshot/run.sh
+
+      - name: Build the todo example
+        working-directory: examples/todo
+        run: |
+          make install
+          make build
+
+      - name: Bridge-integration test (HTTP/SSE round-trip + crash-recover)
+        working-directory: examples/todo
+        run: ./tests/integration.sh
diff --git a/examples/todo/symfony/src/Controller/TodoController.php b/examples/todo/symfony/src/Controller/TodoController.php
index dbdf9f8..50d2a53 100644
--- a/examples/todo/symfony/src/Controller/TodoController.php
+++ b/examples/todo/symfony/src/Controller/TodoController.php
@@ -10,7 +10,7 @@ use Symfony\Component\HttpFoundation\JsonResponse;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\Routing\Attribute\Route;
-use Symfony\Component\Serializer\SerializerInterface;
+use Symfony\Component\Serializer\Normalizer\NormalizerInterface;
 
 /**
  * Auto-generated CRUD controller for the Todo bridge resource.
@@ -21,7 +21,7 @@ final class TodoController
 {
     public function __construct(
         private readonly EntityManagerInterface $em,
-        private readonly SerializerInterface $serializer,
+        private readonly NormalizerInterface $normalizer,
     ) {
     }
 
@@ -30,7 +30,7 @@ final class TodoController
     {
         $items = $this->em->getRepository(Todo::class)->findAll();
 
-        return new JsonResponse($this->serializer->normalize($items, 'json'));
+        return new JsonResponse($this->normalizer->normalize($items, 'json'));
     }
 
     #[Route('', name: 'todo_create', methods: ['POST'])]
@@ -51,7 +51,7 @@ final class TodoController
         $this->em->flush();
 
         return new JsonResponse(
-            $this->serializer->normalize($entity, 'json'),
+            $this->normalizer->normalize($entity, 'json'),
             Response::HTTP_CREATED,
         );
     }
@@ -81,7 +81,7 @@ final class TodoController
 
         $this->em->flush();
 
-        return new JsonResponse($this->serializer->normalize($entity, 'json'));
+        return new JsonResponse($this->normalizer->normalize($entity, 'json'));
     }
 
     #[Route('/{id}', name: 'todo_delete', methods: ['DELETE'])]
diff --git a/framework/php/.php-cs-fixer.dist.php b/framework/php/.php-cs-fixer.dist.php
index a184838..3080cce 100644
--- a/framework/php/.php-cs-fixer.dist.php
+++ b/framework/php/.php-cs-fixer.dist.php
@@ -4,7 +4,12 @@ $finder = (new PhpCsFixer\Finder())
     ->in([__DIR__ . '/src', __DIR__ . '/tests'])
     // Maker templates use short-echo syntax and alternative-syntax control
     // structures by design — cs-fixer's @Symfony rules would mangle them.
-    ->notPath('Maker/templates');
+    ->notPath('Maker/templates')
+    // Maker-output snapshot baselines are the makers' exact output and
+    // must not be auto-rewritten; if they need updating, the maker
+    // template changes and the snapshot is regenerated explicitly.
+    // (notPath is relative to each `in()` dir, not the project root.)
+    ->notPath('snapshot');
 
 return (new PhpCsFixer\Config())
     ->setRiskyAllowed(true)
diff --git a/framework/php/phpstan.neon.dist b/framework/php/phpstan.neon.dist
index 02e93da..ec6c62e 100644
--- a/framework/php/phpstan.neon.dist
+++ b/framework/php/phpstan.neon.dist
@@ -12,3 +12,5 @@ parameters:
         # Maker templates use variables injected by the Generator at
         # render time; static analysis can't see the binding.
         - src/Maker/templates/*
+        # Snapshot baselines are reference output, not maintained code.
+        - tests/snapshot/*
diff --git a/framework/php/src/Maker/BridgeResourceMaker.php b/framework/php/src/Maker/BridgeResourceMaker.php
index 1cacd27..f41a750 100644
--- a/framework/php/src/Maker/BridgeResourceMaker.php
+++ b/framework/php/src/Maker/BridgeResourceMaker.php
@@ -20,7 +20,7 @@ use Symfony\Component\Console\Input\InputOption;
 use Symfony\Component\HttpFoundation\JsonResponse;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\Routing\Attribute\Route;
-use Symfony\Component\Serializer\SerializerInterface;
+use Symfony\Component\Serializer\Normalizer\NormalizerInterface;
 use Symfony\Component\Uid\Uuid;
 
 /**
@@ -163,7 +163,7 @@ final class BridgeResourceMaker extends AbstractMaker
         $dependencies->addClassDependency(JsonResponse::class, 'symfony/http-foundation');
         $dependencies->addClassDependency(Request::class, 'symfony/http-foundation');
         $dependencies->addClassDependency(EntityManagerInterface::class, 'doctrine/orm');
-        $dependencies->addClassDependency(SerializerInterface::class, 'symfony/serializer');
+        $dependencies->addClassDependency(NormalizerInterface::class, 'symfony/serializer');
         $dependencies->addClassDependency(Uuid::class, 'symfony/uid');
     }
 }
diff --git a/framework/php/src/Maker/templates/Command.tpl.php b/framework/php/src/Maker/templates/Command.tpl.php
index c267242..cfa4d42 100644
--- a/framework/php/src/Maker/templates/Command.tpl.php
+++ b/framework/php/src/Maker/templates/Command.tpl.php
@@ -27,7 +27,9 @@ final class <?= $controller_short ?>
     {
         // TODO: implement <?= $singular ?>.
         // Read inputs from $request->getPayload() / json_decode($request->getContent(), true).
-        // Mutate entities, then $this->em->flush().
+        // Mutate entities, then $this->em->flush() (already wired up below).
+
+        $this->em->flush();
 
         return new JsonResponse(['ok' => true]);
     }
diff --git a/framework/php/src/Maker/templates/Controller.tpl.php b/framework/php/src/Maker/templates/Controller.tpl.php
index a6f7853..9d011ea 100644
--- a/framework/php/src/Maker/templates/Controller.tpl.php
+++ b/framework/php/src/Maker/templates/Controller.tpl.php
@@ -10,7 +10,7 @@ use Symfony\Component\HttpFoundation\JsonResponse;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\Routing\Attribute\Route;
-use Symfony\Component\Serializer\SerializerInterface;
+use Symfony\Component\Serializer\Normalizer\NormalizerInterface;
 
 /**
  * Auto-generated CRUD controller for the <?= $singular ?> bridge resource.
@@ -21,7 +21,7 @@ final class <?= $entity_short ?>Controller
 {
     public function __construct(
         private readonly EntityManagerInterface $em,
-        private readonly SerializerInterface $serializer,
+        private readonly NormalizerInterface $normalizer,
     ) {
     }
 
@@ -30,7 +30,7 @@ final class <?= $entity_short ?>Controller
     {
         $items = $this->em->getRepository(<?= $entity_short ?>::class)->findAll();
 
-        return new JsonResponse($this->serializer->normalize($items, 'json'));
+        return new JsonResponse($this->normalizer->normalize($items, 'json'));
     }
 
     #[Route('', name: '<?= $resource ?>_create', methods: ['POST'])]
@@ -49,7 +49,7 @@ final class <?= $entity_short ?>Controller
         $this->em->flush();
 
         return new JsonResponse(
-            $this->serializer->normalize($entity, 'json'),
+            $this->normalizer->normalize($entity, 'json'),
             Response::HTTP_CREATED,
         );
     }
@@ -76,7 +76,7 @@ final class <?= $entity_short ?>Controller
 
         $this->em->flush();
 
-        return new JsonResponse($this->serializer->normalize($entity, 'json'));
+        return new JsonResponse($this->normalizer->normalize($entity, 'json'));
     }
 
     #[Route('/{id}', name: '<?= $resource ?>_delete', methods: ['DELETE'])]
diff --git a/framework/php/tests/snapshot/MarkAllDoneController.php b/framework/php/tests/snapshot/MarkAllDoneController.php
new file mode 100644
index 0000000..85d683c
--- /dev/null
+++ b/framework/php/tests/snapshot/MarkAllDoneController.php
@@ -0,0 +1,35 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Controller;
+
+use Doctrine\ORM\EntityManagerInterface;
+use Symfony\Component\HttpFoundation\JsonResponse;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\Routing\Attribute\Route;
+
+/**
+ * Auto-generated domain command endpoint. Fill in the body and persist
+ * via $this->em->flush(). Doctrine entities tagged with #[BridgeResource]
+ * publish their changes to Mercure automatically.
+ */
+final class MarkAllDoneController
+{
+    public function __construct(
+        private readonly EntityManagerInterface $em,
+    ) {
+    }
+
+    #[Route('/api/mark-all-done', name: 'mark-all-done', methods: ['POST'])]
+    public function __invoke(Request $request): JsonResponse
+    {
+        // TODO: implement MarkAllDone.
+        // Read inputs from $request->getPayload() / json_decode($request->getContent(), true).
+        // Mutate entities, then $this->em->flush() (already wired up below).
+
+        $this->em->flush();
+
+        return new JsonResponse(['ok' => true]);
+    }
+}
diff --git a/framework/php/tests/snapshot/Todo.php b/framework/php/tests/snapshot/Todo.php
new file mode 100644
index 0000000..b441a9a
--- /dev/null
+++ b/framework/php/tests/snapshot/Todo.php
@@ -0,0 +1,54 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Entity;
+
+use Doctrine\ORM\Mapping as ORM;
+use PhpQml\Bridge\Attribute\BridgeResource;
+use Symfony\Component\Uid\Uuid;
+
+#[ORM\Entity]
+#[BridgeResource(name: 'todo')]
+class Todo
+{
+    #[ORM\Id]
+    #[ORM\Column(type: 'uuid', unique: true)]
+    private Uuid $id;
+
+    #[ORM\Column(length: 255)]
+    private string $title = '';
+
+    #[ORM\Column]
+    private bool $done = false;
+
+    public function __construct()
+    {
+        $this->id = Uuid::v7();
+    }
+
+    public function getId(): Uuid
+    {
+        return $this->id;
+    }
+
+    public function getTitle(): string
+    {
+        return $this->title;
+    }
+
+    public function setTitle(string $title): void
+    {
+        $this->title = $title;
+    }
+
+    public function isDone(): bool
+    {
+        return $this->done;
+    }
+
+    public function setDone(bool $done): void
+    {
+        $this->done = $done;
+    }
+}
diff --git a/framework/php/tests/snapshot/TodoController.php b/framework/php/tests/snapshot/TodoController.php
new file mode 100644
index 0000000..50d2a53
--- /dev/null
+++ b/framework/php/tests/snapshot/TodoController.php
@@ -0,0 +1,101 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Controller;
+
+use App\Entity\Todo;
+use Doctrine\ORM\EntityManagerInterface;
+use Symfony\Component\HttpFoundation\JsonResponse;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\Routing\Attribute\Route;
+use Symfony\Component\Serializer\Normalizer\NormalizerInterface;
+
+/**
+ * Auto-generated CRUD controller for the Todo bridge resource.
+ * Edit freely — re-running make:bridge:resource won't overwrite this file.
+ */
+#[Route('/api/todos')]
+final class TodoController
+{
+    public function __construct(
+        private readonly EntityManagerInterface $em,
+        private readonly NormalizerInterface $normalizer,
+    ) {
+    }
+
+    #[Route('', name: 'todo_list', methods: ['GET'])]
+    public function list(): JsonResponse
+    {
+        $items = $this->em->getRepository(Todo::class)->findAll();
+
+        return new JsonResponse($this->normalizer->normalize($items, 'json'));
+    }
+
+    #[Route('', name: 'todo_create', methods: ['POST'])]
+    public function create(Request $request): JsonResponse
+    {
+        $data = json_decode((string) $request->getContent(), true) ?? [];
+        $entity = new Todo();
+
+        if (isset($data['title'])) {
+            $entity->setTitle((string) $data['title']);
+        }
+
+        if (isset($data['done'])) {
+            $entity->setDone((bool) $data['done']);
+        }
+
+        $this->em->persist($entity);
+        $this->em->flush();
+
+        return new JsonResponse(
+            $this->normalizer->normalize($entity, 'json'),
+            Response::HTTP_CREATED,
+        );
+    }
+
+    #[Route('/{id}', name: 'todo_update', methods: ['PATCH'])]
+    public function update(string $id, Request $request): JsonResponse
+    {
+        $entity = $this->em->getRepository(Todo::class)->find($id);
+
+        if (null === $entity) {
+            return new JsonResponse(
+                ['title' => 'Not Found', 'status' => 404],
+                Response::HTTP_NOT_FOUND,
+                ['Content-Type' => 'application/problem+json'],
+            );
+        }
+
+        $data = json_decode((string) $request->getContent(), true) ?? [];
+
+        if (isset($data['title'])) {
+            $entity->setTitle((string) $data['title']);
+        }
+
+        if (isset($data['done'])) {
+            $entity->setDone((bool) $data['done']);
+        }
+
+        $this->em->flush();
+
+        return new JsonResponse($this->normalizer->normalize($entity, 'json'));
+    }
+
+    #[Route('/{id}', name: 'todo_delete', methods: ['DELETE'])]
+    public function delete(string $id): JsonResponse
+    {
+        $entity = $this->em->getRepository(Todo::class)->find($id);
+
+        if (null === $entity) {
+            return new JsonResponse(null, Response::HTTP_NO_CONTENT);
+        }
+
+        $this->em->remove($entity);
+        $this->em->flush();
+
+        return new JsonResponse(null, Response::HTTP_NO_CONTENT);
+    }
+}
diff --git a/framework/php/tests/snapshot/TodoList.qml b/framework/php/tests/snapshot/TodoList.qml
new file mode 100644
index 0000000..5e7c339
--- /dev/null
+++ b/framework/php/tests/snapshot/TodoList.qml
@@ -0,0 +1,28 @@
+// Auto-generated by `bin/console make:bridge:resource Todo`.
+// Drop this into your QML and customize the delegate to taste.
+
+import QtQuick
+import QtQuick.Controls
+import PhpQml.Bridge
+
+ListView {
+    id: todoList
+
+    model: ReactiveListModel {
+        baseUrl: BackendConnection.url
+        token:   BackendConnection.token
+        source:  "/api/todos"
+        topic:   "app://model/todo"
+    }
+
+    delegate: ItemDelegate {
+        required property string id
+        required property string title
+        required property bool   done
+        required property bool   pending
+
+        text:    title + (done ? "  ✓" : "")
+        opacity: pending ? 0.5 : 1.0
+        width:   ListView.view.width
+    }
+}
diff --git a/framework/php/tests/snapshot/TodoWindow.qml b/framework/php/tests/snapshot/TodoWindow.qml
new file mode 100644
index 0000000..b37d2b6
--- /dev/null
+++ b/framework/php/tests/snapshot/TodoWindow.qml
@@ -0,0 +1,36 @@
+// Auto-generated by `bin/console make:bridge:window Todo`.
+// Edit freely; re-running the maker won't overwrite this file.
+
+import QtQuick
+import QtQuick.Controls
+import QtQuick.Layouts
+import QtQuick.Window
+import PhpQml.Bridge
+
+ApplicationWindow {
+    id: todoWindow
+    width: 720
+    height: 520
+    visible: true
+    title: "Todo"
+
+    AppShell {
+        anchors.fill: parent
+
+        // Replace this with the window's content. The AppShell parent
+        // takes care of Reconnecting / Offline UI overlays.
+        ColumnLayout {
+            anchors.fill: parent
+            anchors.margins: 16
+
+            Label {
+                text: "Todo"
+                font.pixelSize: 18
+                font.bold: true
+            }
+
+            // TODO: window content here.
+            Item { Layout.fillWidth: true; Layout.fillHeight: true }
+        }
+    }
+}
diff --git a/framework/php/tests/snapshot/run.sh b/framework/php/tests/snapshot/run.sh
new file mode 100755
index 0000000..1564eef
--- /dev/null
+++ b/framework/php/tests/snapshot/run.sh
@@ -0,0 +1,63 @@
+#!/usr/bin/env bash
+# Maker-output snapshot test.
+# Runs the three Phase-2/Phase-3 makers in a clean temp app and diffs
+# the output against the baselines in this directory. Detects silent
+# generator drift: any change to a maker template requires the
+# corresponding baseline to be updated in the same commit.
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+PROJECT_ROOT="$(cd "$SCRIPT_DIR/../../../.." && pwd)"
+BUNDLE="$PROJECT_ROOT/framework/php"
+WORK="$(mktemp -d)"
+
+trap 'rm -rf "$WORK"' EXIT INT TERM
+
+# Mirror the skeleton's tracked files into the temp dir.
+git -C "$PROJECT_ROOT" archive HEAD framework/skeleton/ | tar -xf - -C "$WORK"
+APP="$WORK/framework/skeleton"
+
+# Point the test app's path repo at the actual bundle dir (the
+# default '../../php' would resolve relative to /tmp).
+sed -i "s|\"../../php\"|\"$BUNDLE\"|" "$APP/symfony/composer.json"
+rm -f "$APP/symfony/composer.lock"
+( cd "$APP/symfony" && composer install --no-interaction --quiet )
+
+# Remove the existing maker outputs so the regenerators don't bail.
+rm -f "$APP/symfony/src/Entity/Todo.php"
+rm -f "$APP/symfony/src/Controller/TodoController.php"
+rm -f "$APP/qml/TodoList.qml"
+
+# Run every maker we cover.
+( cd "$APP/symfony" \
+    && bin/console make:bridge:resource Todo --no-interaction >/dev/null \
+    && bin/console make:bridge:command MarkAllDone --no-interaction >/dev/null \
+    && bin/console make:bridge:window Todo --no-interaction >/dev/null )
+
+# Compare each generated file to its snapshot baseline.
+fail=0
+check() {
+    local generated="$1"
+    local baseline="$2"
+    if ! diff -q "$generated" "$baseline" >/dev/null 2>&1; then
+        echo "✗ snapshot mismatch: $(basename "$baseline")" >&2
+        diff -u "$baseline" "$generated" >&2 || true
+        fail=1
+    else
+        echo "✓ $(basename "$baseline")"
+    fi
+}
+
+check "$APP/symfony/src/Entity/Todo.php"               "$SCRIPT_DIR/Todo.php"
+check "$APP/symfony/src/Controller/TodoController.php" "$SCRIPT_DIR/TodoController.php"
+check "$APP/qml/TodoList.qml"                          "$SCRIPT_DIR/TodoList.qml"
+check "$APP/symfony/src/Controller/MarkAllDoneController.php" "$SCRIPT_DIR/MarkAllDoneController.php"
+check "$APP/qml/TodoWindow.qml"                        "$SCRIPT_DIR/TodoWindow.qml"
+
+if [ "$fail" -ne 0 ]; then
+    echo "Snapshot test failed. If the change is intended, update the baselines under $SCRIPT_DIR/." >&2
+    exit 1
+fi
+
+echo "All maker outputs match snapshots."
diff --git a/framework/skeleton/Makefile b/framework/skeleton/Makefile
index b096c87..19b2014 100644
--- a/framework/skeleton/Makefile
+++ b/framework/skeleton/Makefile
@@ -37,6 +37,7 @@ clean: ## Remove build artefacts
 	rm -rf $(BUILD_DIR)
 
 .PHONY: quality
-quality: build ## Run PHPStan, php-cs-fixer (check), PHPUnit, qmllint
+quality: build ## Run PHPStan, php-cs-fixer (check), PHPUnit, qmllint, maker snapshots
 	cd ../php && composer quality
 	cmake --build $(BUILD_DIR) --target all_qmllint
+	../php/tests/snapshot/run.sh
diff --git a/framework/skeleton/symfony/src/Controller/TodoController.php b/framework/skeleton/symfony/src/Controller/TodoController.php
index dbdf9f8..50d2a53 100644
--- a/framework/skeleton/symfony/src/Controller/TodoController.php
+++ b/framework/skeleton/symfony/src/Controller/TodoController.php
@@ -10,7 +10,7 @@ use Symfony\Component\HttpFoundation\JsonResponse;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\Routing\Attribute\Route;
-use Symfony\Component\Serializer\SerializerInterface;
+use Symfony\Component\Serializer\Normalizer\NormalizerInterface;
 
 /**
  * Auto-generated CRUD controller for the Todo bridge resource.
@@ -21,7 +21,7 @@ final class TodoController
 {
     public function __construct(
         private readonly EntityManagerInterface $em,
-        private readonly SerializerInterface $serializer,
+        private readonly NormalizerInterface $normalizer,
     ) {
     }
 
@@ -30,7 +30,7 @@ final class TodoController
     {
         $items = $this->em->getRepository(Todo::class)->findAll();
 
-        return new JsonResponse($this->serializer->normalize($items, 'json'));
+        return new JsonResponse($this->normalizer->normalize($items, 'json'));
     }
 
     #[Route('', name: 'todo_create', methods: ['POST'])]
@@ -51,7 +51,7 @@ final class TodoController
         $this->em->flush();
 
         return new JsonResponse(
-            $this->serializer->normalize($entity, 'json'),
+            $this->normalizer->normalize($entity, 'json'),
             Response::HTTP_CREATED,
         );
     }
@@ -81,7 +81,7 @@ final class TodoController
 
         $this->em->flush();
 
-        return new JsonResponse($this->serializer->normalize($entity, 'json'));
+        return new JsonResponse($this->normalizer->normalize($entity, 'json'));
     }
 
     #[Route('/{id}', name: 'todo_delete', methods: ['DELETE'])]