diff --git a/config/packages/messenger.yaml b/config/packages/messenger.yaml
index e62a77f..d7da643 100644
--- a/config/packages/messenger.yaml
+++ b/config/packages/messenger.yaml
@@ -36,4 +36,16 @@ framework:
                 options:
                     stream: failed
 
-        routing: []
+        routing:
+            App\Infrastructure\Messenger\Message\PhotoUploadMessage: ai_pipeline
+            App\Infrastructure\Messenger\Message\SpecsResearchMessage: ai_pipeline
+            App\Infrastructure\Messenger\Message\JsonCodingMessage: ai_pipeline
+            App\Infrastructure\Messenger\Message\ValidationMessage: ai_pipeline
+            App\Infrastructure\Messenger\Message\DraftArticleMessage: ai_pipeline
+            App\Infrastructure\Messenger\Message\EbayTextMessage: ai_pipeline
+            App\Infrastructure\Messenger\Message\PxeInventoryMessage: ai_pipeline
+            App\Infrastructure\Messenger\Message\PublishToChannelMessage: channel_sync
+            App\Infrastructure\Messenger\Message\UpdateStockOnChannelsMessage: channel_sync
+            App\Infrastructure\Messenger\Message\DeactivateListingMessage: channel_sync
+            App\Infrastructure\Messenger\Message\OrderReceivedMessage: orders
+            App\Infrastructure\Messenger\Message\TrackingPushMessage: channel_sync
diff --git a/src/Application/Channel/ChannelAdapterInterface.php b/src/Application/Channel/ChannelAdapterInterface.php
new file mode 100644
index 0000000..7c8c0e7
--- /dev/null
+++ b/src/Application/Channel/ChannelAdapterInterface.php
@@ -0,0 +1,43 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Application\Channel;
+
+use App\Domain\Article\Article;
+use App\Domain\Order\Order;
+
+interface ChannelAdapterInterface
+{
+    /**
+     * Creates a listing on the platform for the given article.
+     * Returns the platform-specific listing ID.
+     *
+     * @throws \RuntimeException if listing creation fails
+     */
+    public function publishListing(Article $article): string;
+
+    /**
+     * Updates stock/quantity for an existing listing.
+     *
+     * @throws \RuntimeException if update fails
+     */
+    public function updateStock(Article $article, int $stock): void;
+
+    /**
+     * Deactivates/ends a listing. Must be idempotent (safe to call if already inactive).
+     *
+     * @throws \RuntimeException if deactivation fails
+     */
+    public function deactivateListing(Article $article): void;
+
+    /**
+     * Marks an order as shipped with tracking information.
+     *
+     * @throws \RuntimeException if push fails
+     */
+    public function pushTracking(Order $order): void;
+
+    /** Returns the platform type this adapter handles (e.g. 'ebay'). */
+    public function getType(): string;
+}
diff --git a/src/Application/Channel/ChannelAdapterRegistry.php b/src/Application/Channel/ChannelAdapterRegistry.php
new file mode 100644
index 0000000..dd1b7b3
--- /dev/null
+++ b/src/Application/Channel/ChannelAdapterRegistry.php
@@ -0,0 +1,36 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Application\Channel;
+
+final class ChannelAdapterRegistry
+{
+    /** @var array<string, ChannelAdapterInterface> */
+    private array $adapters = [];
+
+    /** @param iterable<ChannelAdapterInterface> $adapters */
+    public function __construct(iterable $adapters)
+    {
+        foreach ($adapters as $adapter) {
+            $this->adapters[$adapter->getType()] = $adapter;
+        }
+    }
+
+    public function get(string $type): ChannelAdapterInterface
+    {
+        return $this->adapters[$type]
+            ?? throw new \InvalidArgumentException("No channel adapter registered for type: {$type}");
+    }
+
+    public function has(string $type): bool
+    {
+        return isset($this->adapters[$type]);
+    }
+
+    /** @return list<string> */
+    public function getTypes(): array
+    {
+        return array_keys($this->adapters);
+    }
+}
diff --git a/src/Infrastructure/AI/Agent/EbayTextAgent.php b/src/Infrastructure/AI/Agent/EbayTextAgent.php
new file mode 100644
index 0000000..a76bdfa
--- /dev/null
+++ b/src/Infrastructure/AI/Agent/EbayTextAgent.php
@@ -0,0 +1,58 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\AI\Agent;
+
+use App\Domain\Article\Article;
+use App\Infrastructure\AI\OllamaClientInterface;
+
+final class EbayTextAgent
+{
+    public function __construct(
+        private readonly OllamaClientInterface $ollama,
+        private readonly string $model,
+    ) {
+    }
+
+    /** @return array{title: string, description: string} */
+    public function generate(Article $article): array
+    {
+        $attributes = [];
+        foreach ($article->getAttributeValues() as $value) {
+            $attributes[] = $value->getAttributeDefinition()->getName().': '.$value->getValue();
+        }
+        $attributeText = implode("\n", $attributes);
+        $typeName = $article->getArticleType()->getName();
+        $condition = $article->getCondition()->value;
+        $conditionNotes = $article->getConditionNotes() ?? '';
+
+        $titlePrompt = <<<PROMPT
+            Create a concise eBay listing title (max 80 characters) for this {$typeName}.
+            Use the most important specifications. Include condition if not "new".
+            Condition: {$condition}
+            Specs:
+            {$attributeText}
+            Return ONLY the title text, no quotes, no explanation.
+            PROMPT;
+
+        $descriptionPrompt = <<<PROMPT
+            Create a professional eBay listing description in German for this {$typeName}.
+            Include all specifications in a clear, structured format.
+            Mention the condition: {$condition}.
+            {$conditionNotes}
+            Specs:
+            {$attributeText}
+            Use HTML formatting (ul, li, strong tags). Max 2000 characters.
+            PROMPT;
+
+        $title = trim($this->ollama->generate($this->model, $titlePrompt));
+        $description = trim($this->ollama->generate($this->model, $descriptionPrompt));
+
+        if (mb_strlen($title) > 80) {
+            $title = mb_substr($title, 0, 77).'...';
+        }
+
+        return ['title' => $title, 'description' => $description];
+    }
+}
diff --git a/src/Infrastructure/AI/Agent/JsonCodingAgent.php b/src/Infrastructure/AI/Agent/JsonCodingAgent.php
new file mode 100644
index 0000000..cef7e2c
--- /dev/null
+++ b/src/Infrastructure/AI/Agent/JsonCodingAgent.php
@@ -0,0 +1,96 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\AI\Agent;
+
+use App\Domain\Article\ArticleType;
+use App\Infrastructure\AI\OllamaClientInterface;
+
+final class JsonCodingAgent
+{
+    public function __construct(
+        private readonly OllamaClientInterface $ollama,
+        private readonly string $model,
+    ) {
+    }
+
+    /**
+     * @param list<string> $missingFields
+     *
+     * @return array<string, string>
+     */
+    public function encode(ArticleType $articleType, string $specsText, array $missingFields = []): array
+    {
+        $schema = $this->buildSchema($articleType);
+        $missingHint = [] !== $missingFields
+            ? "\nIMPORTANT: The following fields were missing in the previous attempt. Make sure they are included: ".implode(', ', $missingFields)."\n"
+            : '';
+
+        $prompt = <<<PROMPT
+            Convert the following hardware specifications to a JSON object.
+            The JSON must use these exact keys (UUIDs) and follow the indicated value formats:
+
+            {$schema}
+            {$missingHint}
+            Specifications text:
+            {$specsText}
+
+            Return ONLY valid JSON. No explanation. No markdown. No extra text.
+            JSON:
+            PROMPT;
+
+        $response = $this->ollama->generate($this->model, $prompt);
+
+        return $this->parseJson($response);
+    }
+
+    private function buildSchema(ArticleType $articleType): string
+    {
+        $lines = [];
+        foreach ($articleType->getAttributeDefinitions() as $def) {
+            $hint = match ($def->getType()->value) {
+                'int' => 'integer number',
+                'float' => 'decimal number',
+                'bool' => 'true or false',
+                'select' => 'one of: '.implode(', ', $def->getOptions() ?? []),
+                'multi_select' => 'comma-separated list of: '.implode(', ', $def->getOptions() ?? []),
+                default => 'string'.(null !== $def->getUnit() ? " in {$def->getUnit()}" : ''),
+            };
+            $lines[] = "\"{$def->getId()->toRfc4122()}\": \"{$def->getName()}\" ({$hint})";
+        }
+
+        return implode("\n", $lines);
+    }
+
+    /** @return array<string, string> */
+    private function parseJson(string $response): array
+    {
+        $cleaned = preg_replace('/^```(?:json)?\s*/m', '', $response) ?? $response;
+        $cleaned = preg_replace('/^```\s*$/m', '', $cleaned) ?? $cleaned;
+        $cleaned = trim($cleaned);
+
+        $start = strpos($cleaned, '{');
+        $end = strrpos($cleaned, '}');
+
+        if (false === $start || false === $end) {
+            return [];
+        }
+
+        $json = substr($cleaned, $start, $end - $start + 1);
+
+        try {
+            /** @var array<string, mixed> $decoded */
+            $decoded = json_decode($json, true, 512, \JSON_THROW_ON_ERROR);
+
+            $result = [];
+            foreach ($decoded as $k => $v) {
+                $result[$k] = \is_scalar($v) ? (string) $v : '';
+            }
+
+            return $result;
+        } catch (\JsonException) {
+            return [];
+        }
+    }
+}
diff --git a/src/Infrastructure/AI/Agent/OllamaVisionAgent.php b/src/Infrastructure/AI/Agent/OllamaVisionAgent.php
new file mode 100644
index 0000000..c2cc2bf
--- /dev/null
+++ b/src/Infrastructure/AI/Agent/OllamaVisionAgent.php
@@ -0,0 +1,45 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\AI\Agent;
+
+use App\Infrastructure\AI\OllamaClientInterface;
+
+final class OllamaVisionAgent
+{
+    public function __construct(
+        private readonly OllamaClientInterface $ollama,
+        private readonly string $model,
+    ) {
+    }
+
+    /** @return array{model: string, serial: string} */
+    public function analyze(string $imagePath): array
+    {
+        $prompt = <<<'PROMPT'
+            Look at this nameplate/label photo of IT hardware.
+            Extract ONLY the model name/designation and serial number that are visible on the label.
+            Do not guess or add information not on the label.
+            Respond in exactly this format (use empty string if not visible):
+            MODEL: <model name>
+            SERIAL: <serial number>
+            PROMPT;
+
+        $response = $this->ollama->generateWithImage($this->model, $prompt, $imagePath);
+
+        return [
+            'model' => $this->extractField($response, 'MODEL'),
+            'serial' => $this->extractField($response, 'SERIAL'),
+        ];
+    }
+
+    private function extractField(string $response, string $field): string
+    {
+        if (preg_match('/^'.$field.':\s*(.+)$/m', $response, $matches)) {
+            return trim($matches[1]);
+        }
+
+        return '';
+    }
+}
diff --git a/src/Infrastructure/AI/Agent/SpecsResearchAgent.php b/src/Infrastructure/AI/Agent/SpecsResearchAgent.php
new file mode 100644
index 0000000..6f91570
--- /dev/null
+++ b/src/Infrastructure/AI/Agent/SpecsResearchAgent.php
@@ -0,0 +1,45 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\AI\Agent;
+
+use App\Infrastructure\AI\OllamaClientInterface;
+use App\Infrastructure\Search\WebSearchInterface;
+
+final class SpecsResearchAgent
+{
+    public function __construct(
+        private readonly WebSearchInterface $webSearch,
+        private readonly OllamaClientInterface $ollama,
+        private readonly string $model,
+    ) {
+    }
+
+    public function research(string $modelName): string
+    {
+        $query = "{$modelName} technical specifications full specs";
+        $searchText = $this->webSearch->search($query);
+
+        if ('' === $searchText) {
+            $searchText = $this->webSearch->search("{$modelName} specs datasheet");
+        }
+
+        if ('' === $searchText) {
+            throw new \RuntimeException("No web search results found for model: {$modelName}");
+        }
+
+        $prompt = <<<PROMPT
+            Based on the following search results about "{$modelName}", extract and list all technical specifications.
+            Include: processor, RAM, storage, display, GPU, battery, ports, weight, dimensions, and any other specs found.
+            Be complete and accurate. Use the search results as your source, not general knowledge.
+
+            Search results:
+            {$searchText}
+
+            List all specifications:
+            PROMPT;
+
+        return $this->ollama->generate($this->model, $prompt);
+    }
+}
diff --git a/src/Infrastructure/AI/OllamaClient.php b/src/Infrastructure/AI/OllamaClient.php
new file mode 100644
index 0000000..af97ad8
--- /dev/null
+++ b/src/Infrastructure/AI/OllamaClient.php
@@ -0,0 +1,53 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\AI;
+
+use Symfony\Contracts\HttpClient\HttpClientInterface;
+
+final class OllamaClient implements OllamaClientInterface
+{
+    public function __construct(
+        private readonly HttpClientInterface $httpClient,
+        private readonly string $ollamaBaseUrl,
+    ) {
+    }
+
+    public function generate(string $model, string $prompt): string
+    {
+        $response = $this->httpClient->request('POST', $this->ollamaBaseUrl.'/api/generate', [
+            'json' => [
+                'model' => $model,
+                'prompt' => $prompt,
+                'stream' => false,
+            ],
+            'timeout' => 120,
+        ]);
+
+        /** @var array{response: string} $data */
+        $data = $response->toArray();
+
+        return $data['response'];
+    }
+
+    public function generateWithImage(string $model, string $prompt, string $imagePath): string
+    {
+        $imageData = base64_encode((string) file_get_contents($imagePath));
+
+        $response = $this->httpClient->request('POST', $this->ollamaBaseUrl.'/api/generate', [
+            'json' => [
+                'model' => $model,
+                'prompt' => $prompt,
+                'images' => [$imageData],
+                'stream' => false,
+            ],
+            'timeout' => 180,
+        ]);
+
+        /** @var array{response: string} $data */
+        $data = $response->toArray();
+
+        return $data['response'];
+    }
+}
diff --git a/src/Infrastructure/AI/OllamaClientInterface.php b/src/Infrastructure/AI/OllamaClientInterface.php
new file mode 100644
index 0000000..4ff78c2
--- /dev/null
+++ b/src/Infrastructure/AI/OllamaClientInterface.php
@@ -0,0 +1,12 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\AI;
+
+interface OllamaClientInterface
+{
+    public function generate(string $model, string $prompt): string;
+
+    public function generateWithImage(string $model, string $prompt, string $imagePath): string;
+}
diff --git a/src/Infrastructure/Messenger/Handler/DeactivateListingHandler.php b/src/Infrastructure/Messenger/Handler/DeactivateListingHandler.php
new file mode 100644
index 0000000..8b756af
--- /dev/null
+++ b/src/Infrastructure/Messenger/Handler/DeactivateListingHandler.php
@@ -0,0 +1,60 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Messenger\Handler;
+
+use App\Application\Channel\ChannelAdapterRegistry;
+use App\Domain\Article\ArticleStatus;
+use App\Domain\Article\Repository\ArticleRepositoryInterface;
+use App\Infrastructure\Messenger\Message\DeactivateListingMessage;
+use Psr\Log\LoggerInterface;
+use Symfony\Component\Messenger\Attribute\AsMessageHandler;
+use Symfony\Component\Uid\Uuid;
+
+#[AsMessageHandler]
+final class DeactivateListingHandler
+{
+    private const ALERT_THRESHOLD = 5;
+
+    public function __construct(
+        private readonly ArticleRepositoryInterface $articleRepository,
+        private readonly ChannelAdapterRegistry $adapterRegistry,
+        private readonly LoggerInterface $logger,
+    ) {
+    }
+
+    public function __invoke(DeactivateListingMessage $message): void
+    {
+        $article = $this->articleRepository->findById(Uuid::fromString($message->articleId));
+        if (null === $article) {
+            return;
+        }
+
+        if (!$this->adapterRegistry->has($message->platformType)) {
+            return;
+        }
+
+        $adapter = $this->adapterRegistry->get($message->platformType);
+
+        try {
+            $adapter->deactivateListing($article);
+
+            if (0 === $article->getStock() && ArticleStatus::Listed === $article->getStatus()) {
+                $article->transitionTo(ArticleStatus::Sold);
+                $this->articleRepository->save($article);
+            }
+        } catch (\RuntimeException $e) {
+            if ($message->attemptNumber >= self::ALERT_THRESHOLD) {
+                $this->logger->critical('CRITICAL: Failed to deactivate listing after {attempts} attempts. Risk of oversell!', [
+                    'attempts' => $message->attemptNumber,
+                    'articleId' => $message->articleId,
+                    'platformType' => $message->platformType,
+                    'error' => $e->getMessage(),
+                ]);
+            }
+
+            throw $e;
+        }
+    }
+}
diff --git a/src/Infrastructure/Messenger/Handler/DraftArticleHandler.php b/src/Infrastructure/Messenger/Handler/DraftArticleHandler.php
new file mode 100644
index 0000000..b267162
--- /dev/null
+++ b/src/Infrastructure/Messenger/Handler/DraftArticleHandler.php
@@ -0,0 +1,59 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Messenger\Handler;
+
+use App\Application\Article\ArticleService;
+use App\Domain\Article\ArticleCondition;
+use App\Domain\Pipeline\Repository\AIPipelineJobRepositoryInterface;
+use App\Infrastructure\Messenger\Message\DraftArticleMessage;
+use App\Infrastructure\Messenger\Message\EbayTextMessage;
+use Symfony\Component\Messenger\Attribute\AsMessageHandler;
+use Symfony\Component\Messenger\MessageBusInterface;
+use Symfony\Component\Uid\Uuid;
+
+#[AsMessageHandler]
+final class DraftArticleHandler
+{
+    public function __construct(
+        private readonly ArticleService $articleService,
+        private readonly AIPipelineJobRepositoryInterface $jobRepository,
+        private readonly MessageBusInterface $bus,
+    ) {
+    }
+
+    public function __invoke(DraftArticleMessage $message): void
+    {
+        $job = $this->jobRepository->findById(Uuid::fromString($message->jobId));
+        if (null === $job) {
+            return;
+        }
+
+        $condition = ArticleCondition::tryFrom($message->condition) ?? ArticleCondition::Good;
+
+        $article = $this->articleService->create(
+            articleTypeId: Uuid::fromString($message->articleTypeId),
+            condition: $condition,
+            stock: 1,
+            inventoryNumber: $message->inventoryNumber,
+        );
+
+        if (null !== $message->serialNumber) {
+            $article->setSerialNumber($message->serialNumber);
+        }
+
+        if ([] !== $message->attributes) {
+            $this->articleService->updateAttributes($article->getId(), $message->attributes);
+        }
+
+        $job->setArticleId($article->getId());
+        $job->markCompleted(['articleId' => $article->getId()->toRfc4122()]);
+        $this->jobRepository->save($job);
+
+        $this->bus->dispatch(new EbayTextMessage(
+            jobId: $message->jobId,
+            articleId: $article->getId()->toRfc4122(),
+        ));
+    }
+}
diff --git a/src/Infrastructure/Messenger/Handler/EbayTextHandler.php b/src/Infrastructure/Messenger/Handler/EbayTextHandler.php
new file mode 100644
index 0000000..4ba4d05
--- /dev/null
+++ b/src/Infrastructure/Messenger/Handler/EbayTextHandler.php
@@ -0,0 +1,39 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Messenger\Handler;
+
+use App\Application\Article\ArticleService;
+use App\Domain\Article\Repository\ArticleRepositoryInterface;
+use App\Infrastructure\AI\Agent\EbayTextAgent;
+use App\Infrastructure\Messenger\Message\EbayTextMessage;
+use Symfony\Component\Messenger\Attribute\AsMessageHandler;
+use Symfony\Component\Uid\Uuid;
+
+#[AsMessageHandler]
+final class EbayTextHandler
+{
+    public function __construct(
+        private readonly EbayTextAgent $ebayTextAgent,
+        private readonly ArticleRepositoryInterface $articleRepository,
+        private readonly ArticleService $articleService,
+    ) {
+    }
+
+    public function __invoke(EbayTextMessage $message): void
+    {
+        $article = $this->articleRepository->findById(Uuid::fromString($message->articleId));
+        if (null === $article) {
+            return;
+        }
+
+        $texts = $this->ebayTextAgent->generate($article);
+
+        $this->articleService->setEbayTexts(
+            articleId: $article->getId(),
+            title: $texts['title'],
+            description: $texts['description'],
+        );
+    }
+}
diff --git a/src/Infrastructure/Messenger/Handler/JsonCodingHandler.php b/src/Infrastructure/Messenger/Handler/JsonCodingHandler.php
new file mode 100644
index 0000000..312cae8
--- /dev/null
+++ b/src/Infrastructure/Messenger/Handler/JsonCodingHandler.php
@@ -0,0 +1,51 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Messenger\Handler;
+
+use App\Domain\Article\Repository\ArticleTypeRepositoryInterface;
+use App\Domain\Pipeline\Repository\AIPipelineJobRepositoryInterface;
+use App\Infrastructure\AI\Agent\JsonCodingAgent;
+use App\Infrastructure\Messenger\Message\JsonCodingMessage;
+use App\Infrastructure\Messenger\Message\ValidationMessage;
+use Symfony\Component\Messenger\Attribute\AsMessageHandler;
+use Symfony\Component\Messenger\MessageBusInterface;
+use Symfony\Component\Uid\Uuid;
+
+#[AsMessageHandler]
+final class JsonCodingHandler
+{
+    public function __construct(
+        private readonly JsonCodingAgent $jsonAgent,
+        private readonly ArticleTypeRepositoryInterface $articleTypeRepository,
+        private readonly AIPipelineJobRepositoryInterface $jobRepository,
+        private readonly MessageBusInterface $bus,
+    ) {
+    }
+
+    public function __invoke(JsonCodingMessage $message): void
+    {
+        $job = $this->jobRepository->findById(Uuid::fromString($message->jobId));
+        if (null === $job) {
+            return;
+        }
+
+        $articleType = $this->articleTypeRepository->findById(Uuid::fromString($message->articleTypeId));
+        if (null === $articleType) {
+            $job->markFailed("ArticleType {$message->articleTypeId} not found");
+            $this->jobRepository->save($job);
+
+            return;
+        }
+
+        $attributes = $this->jsonAgent->encode($articleType, $message->specsText, $message->missingFields);
+
+        $this->bus->dispatch(new ValidationMessage(
+            jobId: $message->jobId,
+            articleTypeId: $message->articleTypeId,
+            specsText: $message->specsText,
+            attributes: $attributes,
+        ));
+    }
+}
diff --git a/src/Infrastructure/Messenger/Handler/OrderReceivedHandler.php b/src/Infrastructure/Messenger/Handler/OrderReceivedHandler.php
new file mode 100644
index 0000000..c68f670
--- /dev/null
+++ b/src/Infrastructure/Messenger/Handler/OrderReceivedHandler.php
@@ -0,0 +1,130 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Messenger\Handler;
+
+use App\Application\Order\CustomerResolverInterface;
+use App\Application\Order\ErpAdapterInterface;
+use App\Application\Order\InvoiceMailerInterface;
+use App\Application\Storage\StorageManagerInterface;
+use App\Domain\Article\Repository\ArticleRepositoryInterface;
+use App\Domain\Channel\Repository\PlatformRepositoryInterface;
+use App\Domain\Order\Invoice;
+use App\Domain\Order\Order;
+use App\Domain\Order\OrderStatus;
+use App\Domain\Order\Repository\InvoiceRepositoryInterface;
+use App\Domain\Order\Repository\OrderRepositoryInterface;
+use App\Infrastructure\Channel\Ebay\EbayFulfillmentApiClient;
+use App\Infrastructure\Messenger\Message\OrderReceivedMessage;
+use App\Infrastructure\Messenger\Message\UpdateStockOnChannelsMessage;
+use Psr\Log\LoggerInterface;
+use Symfony\Component\Messenger\Attribute\AsMessageHandler;
+use Symfony\Component\Messenger\Exception\UnrecoverableMessageHandlingException;
+use Symfony\Component\Messenger\MessageBusInterface;
+
+#[AsMessageHandler]
+final class OrderReceivedHandler
+{
+    public function __construct(
+        private readonly EbayFulfillmentApiClient $fulfillmentClient,
+        private readonly ArticleRepositoryInterface $articles,
+        private readonly PlatformRepositoryInterface $platforms,
+        private readonly OrderRepositoryInterface $orders,
+        private readonly InvoiceRepositoryInterface $invoices,
+        private readonly CustomerResolverInterface $customerResolver,
+        private readonly ErpAdapterInterface $erp,
+        private readonly StorageManagerInterface $storage,
+        private readonly InvoiceMailerInterface $mailer,
+        private readonly MessageBusInterface $bus,
+        private readonly LoggerInterface $logger,
+    ) {
+    }
+
+    public function __invoke(OrderReceivedMessage $message): void
+    {
+        if (null !== $this->orders->findByPlatformOrderId($message->platformOrderId)) {
+            $this->logger->info('OrderReceivedHandler: duplicate message, skipping', [
+                'platformOrderId' => $message->platformOrderId,
+            ]);
+
+            return;
+        }
+
+        $ebayOrder = $this->fulfillmentClient->getOrder($message->platformOrderId);
+
+        $article = $this->articles->findByEbayListingId($ebayOrder['ebayListingId']);
+        if (null === $article) {
+            throw new UnrecoverableMessageHandlingException("Article not found for eBay listing ID: {$ebayOrder['ebayListingId']}");
+        }
+
+        $platform = $this->platforms->findByType($message->platformType);
+        if (null === $platform) {
+            throw new UnrecoverableMessageHandlingException("Platform '{$message->platformType}' not configured in database");
+        }
+
+        $locked = $this->articles->decrementStockAtomic($article->getId());
+        if (!$locked) {
+            $this->logger->critical('OVERSTOCK: stock was already 0, sale cannot be fulfilled', [
+                'articleId' => $article->getId()->toRfc4122(),
+                'platformOrderId' => $message->platformOrderId,
+            ]);
+
+            throw new UnrecoverableMessageHandlingException("Overstock for article {$article->getId()->toRfc4122()} — manual intervention required");
+        }
+
+        $customer = $this->customerResolver->resolve(
+            platform: $message->platformType,
+            platformUserId: $ebayOrder['buyerUsername'],
+            name: $ebayOrder['buyerName'],
+            email: $ebayOrder['buyerEmail'],
+            address: [
+                'street' => $ebayOrder['shippingStreet'],
+                'city' => $ebayOrder['shippingCity'],
+                'zip' => $ebayOrder['shippingZip'],
+            ],
+        );
+
+        $order = new Order(
+            $article,
+            $customer,
+            $platform,
+            $message->platformOrderId,
+            $ebayOrder['salePrice'],
+            new \DateTimeImmutable($ebayOrder['saleDate']),
+        );
+        $order->setStatus(OrderStatus::Processing);
+        $this->orders->save($order);
+
+        $frappeInvoiceId = $this->erp->createSalesInvoice($order);
+        $pdfContent = $this->erp->fetchInvoicePdf($frappeInvoiceId);
+
+        $tmpFile = tempnam(sys_get_temp_dir(), 'invoice_');
+        \assert(false !== $tmpFile);
+        file_put_contents($tmpFile, $pdfContent);
+        $stored = $this->storage->store($tmpFile, 'invoice-'.$frappeInvoiceId.'.pdf');
+        unlink($tmpFile);
+
+        $invoice = new Invoice($order, $frappeInvoiceId, $stored->storagePath, $stored->filename);
+        $order->setInvoice($invoice);
+        $this->invoices->save($invoice);
+
+        $this->mailer->sendInvoice($invoice);
+        $invoice->markAsEmailed();
+        $this->invoices->save($invoice);
+
+        $this->bus->dispatch(new UpdateStockOnChannelsMessage(
+            articleId: $article->getId()->toRfc4122(),
+            newStock: $article->getStock(),
+        ));
+
+        $order->setStatus(OrderStatus::Completed);
+        $this->orders->save($order);
+
+        $this->logger->info('Order processed successfully', [
+            'orderId' => $order->getId()->toRfc4122(),
+            'platformOrderId' => $message->platformOrderId,
+            'frappeInvoiceId' => $frappeInvoiceId,
+        ]);
+    }
+}
diff --git a/src/Infrastructure/Messenger/Handler/PhotoUploadHandler.php b/src/Infrastructure/Messenger/Handler/PhotoUploadHandler.php
new file mode 100644
index 0000000..ddd6f02
--- /dev/null
+++ b/src/Infrastructure/Messenger/Handler/PhotoUploadHandler.php
@@ -0,0 +1,51 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Messenger\Handler;
+
+use App\Domain\Pipeline\Repository\AIPipelineJobRepositoryInterface;
+use App\Infrastructure\AI\Agent\OllamaVisionAgent;
+use App\Infrastructure\Messenger\Message\PhotoUploadMessage;
+use App\Infrastructure\Messenger\Message\SpecsResearchMessage;
+use Symfony\Component\Messenger\Attribute\AsMessageHandler;
+use Symfony\Component\Messenger\MessageBusInterface;
+use Symfony\Component\Uid\Uuid;
+
+#[AsMessageHandler]
+final class PhotoUploadHandler
+{
+    public function __construct(
+        private readonly OllamaVisionAgent $visionAgent,
+        private readonly AIPipelineJobRepositoryInterface $jobRepository,
+        private readonly MessageBusInterface $bus,
+    ) {
+    }
+
+    public function __invoke(PhotoUploadMessage $message): void
+    {
+        $job = $this->jobRepository->findById(Uuid::fromString($message->jobId));
+        if (null === $job) {
+            return;
+        }
+
+        $job->markProcessing();
+        $this->jobRepository->save($job);
+
+        $result = $this->visionAgent->analyze($message->storedPhotoPath);
+
+        if ('' === $result['model']) {
+            $job->markNeedsReview('OllamaVisionAgent: no model name detected on nameplate');
+            $this->jobRepository->save($job);
+
+            return;
+        }
+
+        $this->bus->dispatch(new SpecsResearchMessage(
+            jobId: $message->jobId,
+            articleTypeId: $message->articleTypeId,
+            modelName: $result['model'],
+            serialNumber: $result['serial'],
+        ));
+    }
+}
diff --git a/src/Infrastructure/Messenger/Handler/PublishToChannelHandler.php b/src/Infrastructure/Messenger/Handler/PublishToChannelHandler.php
new file mode 100644
index 0000000..3213046
--- /dev/null
+++ b/src/Infrastructure/Messenger/Handler/PublishToChannelHandler.php
@@ -0,0 +1,50 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Messenger\Handler;
+
+use App\Application\Channel\ChannelAdapterRegistry;
+use App\Domain\Article\ArticleStatus;
+use App\Domain\Article\Repository\ArticleRepositoryInterface;
+use App\Domain\Channel\Repository\PlatformRepositoryInterface;
+use App\Infrastructure\Messenger\Message\PublishToChannelMessage;
+use Symfony\Component\Messenger\Attribute\AsMessageHandler;
+use Symfony\Component\Uid\Uuid;
+
+#[AsMessageHandler]
+final class PublishToChannelHandler
+{
+    public function __construct(
+        private readonly ArticleRepositoryInterface $articleRepository,
+        private readonly PlatformRepositoryInterface $platformRepository,
+        private readonly ChannelAdapterRegistry $adapterRegistry,
+    ) {
+    }
+
+    public function __invoke(PublishToChannelMessage $message): void
+    {
+        $article = $this->articleRepository->findById(Uuid::fromString($message->articleId));
+        if (null === $article || ArticleStatus::Active !== $article->getStatus()) {
+            return;
+        }
+
+        $platforms = $this->platformRepository->findAll();
+
+        foreach ($platforms as $platform) {
+            if (!$this->adapterRegistry->has($platform->getType())) {
+                continue;
+            }
+
+            $adapter = $this->adapterRegistry->get($platform->getType());
+            $listingId = $adapter->publishListing($article);
+
+            if ('ebay' === $platform->getType()) {
+                $article->setEbayListingId($listingId);
+            }
+
+            $article->transitionTo(ArticleStatus::Listed);
+            $this->articleRepository->save($article);
+        }
+    }
+}
diff --git a/src/Infrastructure/Messenger/Handler/PxeInventoryHandler.php b/src/Infrastructure/Messenger/Handler/PxeInventoryHandler.php
new file mode 100644
index 0000000..d30bfd4
--- /dev/null
+++ b/src/Infrastructure/Messenger/Handler/PxeInventoryHandler.php
@@ -0,0 +1,39 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Messenger\Handler;
+
+use App\Domain\Pipeline\Repository\AIPipelineJobRepositoryInterface;
+use App\Infrastructure\Messenger\Message\JsonCodingMessage;
+use App\Infrastructure\Messenger\Message\PxeInventoryMessage;
+use Symfony\Component\Messenger\Attribute\AsMessageHandler;
+use Symfony\Component\Messenger\MessageBusInterface;
+use Symfony\Component\Uid\Uuid;
+
+#[AsMessageHandler]
+final class PxeInventoryHandler
+{
+    public function __construct(
+        private readonly AIPipelineJobRepositoryInterface $jobRepository,
+        private readonly MessageBusInterface $bus,
+    ) {
+    }
+
+    public function __invoke(PxeInventoryMessage $message): void
+    {
+        $job = $this->jobRepository->findById(Uuid::fromString($message->jobId));
+        if (null === $job) {
+            return;
+        }
+
+        $job->markProcessing();
+        $this->jobRepository->save($job);
+
+        $this->bus->dispatch(new JsonCodingMessage(
+            jobId: $message->jobId,
+            articleTypeId: $message->articleTypeId,
+            specsText: $message->pxeDump,
+        ));
+    }
+}
diff --git a/src/Infrastructure/Messenger/Handler/SpecsResearchHandler.php b/src/Infrastructure/Messenger/Handler/SpecsResearchHandler.php
new file mode 100644
index 0000000..2c86c9c
--- /dev/null
+++ b/src/Infrastructure/Messenger/Handler/SpecsResearchHandler.php
@@ -0,0 +1,47 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Messenger\Handler;
+
+use App\Domain\Pipeline\Repository\AIPipelineJobRepositoryInterface;
+use App\Infrastructure\AI\Agent\SpecsResearchAgent;
+use App\Infrastructure\Messenger\Message\JsonCodingMessage;
+use App\Infrastructure\Messenger\Message\SpecsResearchMessage;
+use Symfony\Component\Messenger\Attribute\AsMessageHandler;
+use Symfony\Component\Messenger\MessageBusInterface;
+use Symfony\Component\Uid\Uuid;
+
+#[AsMessageHandler]
+final class SpecsResearchHandler
+{
+    public function __construct(
+        private readonly SpecsResearchAgent $specsAgent,
+        private readonly AIPipelineJobRepositoryInterface $jobRepository,
+        private readonly MessageBusInterface $bus,
+    ) {
+    }
+
+    public function __invoke(SpecsResearchMessage $message): void
+    {
+        $job = $this->jobRepository->findById(Uuid::fromString($message->jobId));
+        if (null === $job) {
+            return;
+        }
+
+        try {
+            $specsText = $this->specsAgent->research($message->modelName);
+        } catch (\RuntimeException $e) {
+            $job->markNeedsReview('SpecsResearchAgent: '.$e->getMessage());
+            $this->jobRepository->save($job);
+
+            return;
+        }
+
+        $this->bus->dispatch(new JsonCodingMessage(
+            jobId: $message->jobId,
+            articleTypeId: $message->articleTypeId,
+            specsText: $specsText,
+        ));
+    }
+}
diff --git a/src/Infrastructure/Messenger/Handler/TrackingPushHandler.php b/src/Infrastructure/Messenger/Handler/TrackingPushHandler.php
new file mode 100644
index 0000000..5cb15c9
--- /dev/null
+++ b/src/Infrastructure/Messenger/Handler/TrackingPushHandler.php
@@ -0,0 +1,45 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Messenger\Handler;
+
+use App\Application\Channel\ChannelAdapterRegistry;
+use App\Domain\Order\Repository\OrderRepositoryInterface;
+use App\Infrastructure\Messenger\Message\TrackingPushMessage;
+use Psr\Log\LoggerInterface;
+use Symfony\Component\Messenger\Attribute\AsMessageHandler;
+use Symfony\Component\Messenger\Exception\UnrecoverableMessageHandlingException;
+use Symfony\Component\Uid\Uuid;
+
+#[AsMessageHandler]
+final class TrackingPushHandler
+{
+    public function __construct(
+        private readonly OrderRepositoryInterface $orders,
+        private readonly ChannelAdapterRegistry $channelAdapters,
+        private readonly LoggerInterface $logger,
+    ) {
+    }
+
+    public function __invoke(TrackingPushMessage $message): void
+    {
+        $order = $this->orders->findById(Uuid::fromString($message->orderId));
+        if (null === $order) {
+            throw new UnrecoverableMessageHandlingException("Order {$message->orderId} not found");
+        }
+
+        $platformType = $order->getPlatform()->getType();
+        $adapter = $this->channelAdapters->get($platformType);
+
+        $adapter->pushTracking($order);
+        $order->markTrackingPushedToEbay();
+        $this->orders->save($order);
+
+        $this->logger->info('Tracking pushed to channel', [
+            'orderId' => $message->orderId,
+            'platform' => $platformType,
+            'trackingNumber' => $message->trackingNumber,
+        ]);
+    }
+}
diff --git a/src/Infrastructure/Messenger/Handler/UpdateStockOnChannelsHandler.php b/src/Infrastructure/Messenger/Handler/UpdateStockOnChannelsHandler.php
new file mode 100644
index 0000000..90970ad
--- /dev/null
+++ b/src/Infrastructure/Messenger/Handler/UpdateStockOnChannelsHandler.php
@@ -0,0 +1,58 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Messenger\Handler;
+
+use App\Application\Channel\ChannelAdapterRegistry;
+use App\Domain\Article\Repository\ArticleRepositoryInterface;
+use App\Domain\Channel\Repository\PlatformRepositoryInterface;
+use App\Infrastructure\Messenger\Message\DeactivateListingMessage;
+use App\Infrastructure\Messenger\Message\UpdateStockOnChannelsMessage;
+use Symfony\Component\Messenger\Attribute\AsMessageHandler;
+use Symfony\Component\Messenger\MessageBusInterface;
+use Symfony\Component\Uid\Uuid;
+
+#[AsMessageHandler]
+final class UpdateStockOnChannelsHandler
+{
+    public function __construct(
+        private readonly ArticleRepositoryInterface $articleRepository,
+        private readonly PlatformRepositoryInterface $platformRepository,
+        private readonly ChannelAdapterRegistry $adapterRegistry,
+        private readonly MessageBusInterface $bus,
+    ) {
+    }
+
+    public function __invoke(UpdateStockOnChannelsMessage $message): void
+    {
+        $article = $this->articleRepository->findById(Uuid::fromString($message->articleId));
+        if (null === $article) {
+            return;
+        }
+
+        if (0 === $message->newStock) {
+            $platforms = $this->platformRepository->findAll();
+            foreach ($platforms as $platform) {
+                if ($this->adapterRegistry->has($platform->getType())) {
+                    $this->bus->dispatch(new DeactivateListingMessage(
+                        articleId: $message->articleId,
+                        platformType: $platform->getType(),
+                    ));
+                }
+            }
+
+            return;
+        }
+
+        $platforms = $this->platformRepository->findAll();
+        foreach ($platforms as $platform) {
+            if (!$this->adapterRegistry->has($platform->getType())) {
+                continue;
+            }
+
+            $adapter = $this->adapterRegistry->get($platform->getType());
+            $adapter->updateStock($article, $message->newStock);
+        }
+    }
+}
diff --git a/src/Infrastructure/Messenger/Handler/ValidationHandler.php b/src/Infrastructure/Messenger/Handler/ValidationHandler.php
new file mode 100644
index 0000000..22836a3
--- /dev/null
+++ b/src/Infrastructure/Messenger/Handler/ValidationHandler.php
@@ -0,0 +1,94 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Messenger\Handler;
+
+use App\Domain\Article\Repository\ArticleTypeRepositoryInterface;
+use App\Domain\Pipeline\Repository\AIPipelineJobRepositoryInterface;
+use App\Infrastructure\Messenger\Message\DraftArticleMessage;
+use App\Infrastructure\Messenger\Message\JsonCodingMessage;
+use App\Infrastructure\Messenger\Message\ValidationMessage;
+use Symfony\Component\Messenger\Attribute\AsMessageHandler;
+use Symfony\Component\Messenger\MessageBusInterface;
+use Symfony\Component\Uid\Uuid;
+
+#[AsMessageHandler]
+final class ValidationHandler
+{
+    private const MAX_ATTEMPTS = 3;
+
+    public function __construct(
+        private readonly AIPipelineJobRepositoryInterface $jobRepository,
+        private readonly MessageBusInterface $bus,
+        private readonly ?ArticleTypeRepositoryInterface $articleTypeRepository = null,
+    ) {
+    }
+
+    public function __invoke(ValidationMessage $message): void
+    {
+        $job = $this->jobRepository->findById(Uuid::fromString($message->jobId));
+        if (null === $job) {
+            return;
+        }
+
+        $missing = $this->findMissingFields($message);
+
+        if ([] === $missing) {
+            $this->bus->dispatch(new DraftArticleMessage(
+                jobId: $message->jobId,
+                articleTypeId: $message->articleTypeId,
+                attributes: $message->attributes,
+                condition: 'good',
+                inventoryNumber: null,
+                serialNumber: null,
+            ));
+
+            return;
+        }
+
+        if ($job->getAttemptCount() >= self::MAX_ATTEMPTS) {
+            $job->markNeedsReview('Validation failed after '.self::MAX_ATTEMPTS.' attempts. Missing: '.implode(', ', $missing));
+            $this->jobRepository->save($job);
+
+            return;
+        }
+
+        $job->incrementAttempt($missing);
+        $this->jobRepository->save($job);
+
+        $this->bus->dispatch(new JsonCodingMessage(
+            jobId: $message->jobId,
+            articleTypeId: $message->articleTypeId,
+            specsText: $message->specsText,
+            missingFields: $missing,
+        ));
+    }
+
+    /** @return list<string> attribute names that are required but not present */
+    private function findMissingFields(ValidationMessage $message): array
+    {
+        // Empty attributes always means retry
+        if ([] === $message->attributes) {
+            return ['(no attributes returned by LLM)'];
+        }
+
+        if (null === $this->articleTypeRepository) {
+            return [];
+        }
+
+        $articleType = $this->articleTypeRepository->findById(Uuid::fromString($message->articleTypeId));
+        if (null === $articleType) {
+            return [];
+        }
+
+        $missing = [];
+        foreach ($articleType->getRequiredAttributeDefinitions() as $def) {
+            if (!\array_key_exists($def->getId()->toRfc4122(), $message->attributes)) {
+                $missing[] = $def->getName();
+            }
+        }
+
+        return $missing;
+    }
+}
diff --git a/src/Infrastructure/Messenger/Message/DeactivateListingMessage.php b/src/Infrastructure/Messenger/Message/DeactivateListingMessage.php
new file mode 100644
index 0000000..921c088
--- /dev/null
+++ b/src/Infrastructure/Messenger/Message/DeactivateListingMessage.php
@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Messenger\Message;
+
+final readonly class DeactivateListingMessage
+{
+    public function __construct(
+        public string $articleId,
+        public string $platformType,
+        public int $attemptNumber = 1,
+    ) {
+    }
+}
diff --git a/src/Infrastructure/Messenger/Message/DraftArticleMessage.php b/src/Infrastructure/Messenger/Message/DraftArticleMessage.php
new file mode 100644
index 0000000..6f6bc03
--- /dev/null
+++ b/src/Infrastructure/Messenger/Message/DraftArticleMessage.php
@@ -0,0 +1,19 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Messenger\Message;
+
+final readonly class DraftArticleMessage
+{
+    /** @param array<string, string> $attributes */
+    public function __construct(
+        public string $jobId,
+        public string $articleTypeId,
+        public array $attributes,
+        public string $condition,
+        public ?string $inventoryNumber,
+        public ?string $serialNumber,
+    ) {
+    }
+}
diff --git a/src/Infrastructure/Messenger/Message/EbayTextMessage.php b/src/Infrastructure/Messenger/Message/EbayTextMessage.php
new file mode 100644
index 0000000..1415116
--- /dev/null
+++ b/src/Infrastructure/Messenger/Message/EbayTextMessage.php
@@ -0,0 +1,14 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Messenger\Message;
+
+final readonly class EbayTextMessage
+{
+    public function __construct(
+        public string $jobId,
+        public string $articleId,
+    ) {
+    }
+}
diff --git a/src/Infrastructure/Messenger/Message/JsonCodingMessage.php b/src/Infrastructure/Messenger/Message/JsonCodingMessage.php
new file mode 100644
index 0000000..798856c
--- /dev/null
+++ b/src/Infrastructure/Messenger/Message/JsonCodingMessage.php
@@ -0,0 +1,17 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Messenger\Message;
+
+final readonly class JsonCodingMessage
+{
+    /** @param list<string> $missingFields */
+    public function __construct(
+        public string $jobId,
+        public string $articleTypeId,
+        public string $specsText,
+        public array $missingFields = [],
+    ) {
+    }
+}
diff --git a/src/Infrastructure/Messenger/Message/OrderReceivedMessage.php b/src/Infrastructure/Messenger/Message/OrderReceivedMessage.php
new file mode 100644
index 0000000..dd04e9e
--- /dev/null
+++ b/src/Infrastructure/Messenger/Message/OrderReceivedMessage.php
@@ -0,0 +1,18 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Messenger\Message;
+
+final readonly class OrderReceivedMessage
+{
+    /**
+     * @param array<string, mixed> $rawPayload
+     */
+    public function __construct(
+        public string $platformOrderId,
+        public string $platformType,
+        public array $rawPayload,
+    ) {
+    }
+}
diff --git a/src/Infrastructure/Messenger/Message/PhotoUploadMessage.php b/src/Infrastructure/Messenger/Message/PhotoUploadMessage.php
new file mode 100644
index 0000000..4d53bd1
--- /dev/null
+++ b/src/Infrastructure/Messenger/Message/PhotoUploadMessage.php
@@ -0,0 +1,16 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Messenger\Message;
+
+final readonly class PhotoUploadMessage
+{
+    public function __construct(
+        public string $jobId,
+        public string $articleTypeId,
+        public string $storedPhotoPath,
+        public string $originalFilename,
+    ) {
+    }
+}
diff --git a/src/Infrastructure/Messenger/Message/PublishToChannelMessage.php b/src/Infrastructure/Messenger/Message/PublishToChannelMessage.php
new file mode 100644
index 0000000..29fdd00
--- /dev/null
+++ b/src/Infrastructure/Messenger/Message/PublishToChannelMessage.php
@@ -0,0 +1,13 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Messenger\Message;
+
+final readonly class PublishToChannelMessage
+{
+    public function __construct(
+        public string $articleId,
+    ) {
+    }
+}
diff --git a/src/Infrastructure/Messenger/Message/PxeInventoryMessage.php b/src/Infrastructure/Messenger/Message/PxeInventoryMessage.php
new file mode 100644
index 0000000..fb038e2
--- /dev/null
+++ b/src/Infrastructure/Messenger/Message/PxeInventoryMessage.php
@@ -0,0 +1,17 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Messenger\Message;
+
+final readonly class PxeInventoryMessage
+{
+    public function __construct(
+        public string $jobId,
+        public string $articleTypeId,
+        public string $pxeDump,
+        public string $inventoryNumber,
+        public string $condition,
+    ) {
+    }
+}
diff --git a/src/Infrastructure/Messenger/Message/SpecsResearchMessage.php b/src/Infrastructure/Messenger/Message/SpecsResearchMessage.php
new file mode 100644
index 0000000..2411d8e
--- /dev/null
+++ b/src/Infrastructure/Messenger/Message/SpecsResearchMessage.php
@@ -0,0 +1,16 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Messenger\Message;
+
+final readonly class SpecsResearchMessage
+{
+    public function __construct(
+        public string $jobId,
+        public string $articleTypeId,
+        public string $modelName,
+        public string $serialNumber,
+    ) {
+    }
+}
diff --git a/src/Infrastructure/Messenger/Message/TrackingPushMessage.php b/src/Infrastructure/Messenger/Message/TrackingPushMessage.php
new file mode 100644
index 0000000..2065352
--- /dev/null
+++ b/src/Infrastructure/Messenger/Message/TrackingPushMessage.php
@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Messenger\Message;
+
+final readonly class TrackingPushMessage
+{
+    public function __construct(
+        public string $orderId,
+        public string $trackingNumber,
+        public string $carrier,
+    ) {
+    }
+}
diff --git a/src/Infrastructure/Messenger/Message/UpdateStockOnChannelsMessage.php b/src/Infrastructure/Messenger/Message/UpdateStockOnChannelsMessage.php
new file mode 100644
index 0000000..8ae5232
--- /dev/null
+++ b/src/Infrastructure/Messenger/Message/UpdateStockOnChannelsMessage.php
@@ -0,0 +1,14 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Messenger\Message;
+
+final readonly class UpdateStockOnChannelsMessage
+{
+    public function __construct(
+        public string $articleId,
+        public int $newStock,
+    ) {
+    }
+}
diff --git a/src/Infrastructure/Messenger/Message/ValidationMessage.php b/src/Infrastructure/Messenger/Message/ValidationMessage.php
new file mode 100644
index 0000000..01abe54
--- /dev/null
+++ b/src/Infrastructure/Messenger/Message/ValidationMessage.php
@@ -0,0 +1,17 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Infrastructure\Messenger\Message;
+
+final readonly class ValidationMessage
+{
+    /** @param array<string, string> $attributes */
+    public function __construct(
+        public string $jobId,
+        public string $articleTypeId,
+        public string $specsText,
+        public array $attributes,
+    ) {
+    }
+}
diff --git a/tests/Unit/Infrastructure/AI/Agent/JsonCodingAgentTest.php b/tests/Unit/Infrastructure/AI/Agent/JsonCodingAgentTest.php
new file mode 100644
index 0000000..7f56d42
--- /dev/null
+++ b/tests/Unit/Infrastructure/AI/Agent/JsonCodingAgentTest.php
@@ -0,0 +1,56 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Tests\Unit\Infrastructure\AI\Agent;
+
+use App\Domain\Article\ArticleType;
+use App\Domain\Article\AttributeDefinition;
+use App\Domain\Article\AttributeType;
+use App\Infrastructure\AI\Agent\JsonCodingAgent;
+use App\Infrastructure\AI\OllamaClientInterface;
+use PHPUnit\Framework\MockObject\MockObject;
+use PHPUnit\Framework\TestCase;
+
+final class JsonCodingAgentTest extends TestCase
+{
+    private OllamaClientInterface&MockObject $ollama;
+    private JsonCodingAgent $agent;
+    private ArticleType $type;
+
+    protected function setUp(): void
+    {
+        $this->ollama = $this->createMock(OllamaClientInterface::class);
+        $this->agent = new JsonCodingAgent($this->ollama, 'llama3.2');
+        $this->type = new ArticleType('Notebook');
+        $ramDef = new AttributeDefinition('RAM', AttributeType::String);
+        $this->type->addAttributeDefinition($ramDef);
+    }
+
+    public function testReturnsParsedAttributes(): void
+    {
+        $first = $this->type->getAttributeDefinitions()->first();
+        \assert($first instanceof AttributeDefinition);
+        $defId = $first->getId()->toRfc4122();
+        $this->ollama->method('generate')
+            ->willReturn('```json'."\n".'{"'.$defId.'": "16 GB"}'."\n".'```');
+
+        $result = $this->agent->encode($this->type, 'Dell Latitude 5520: 16 GB RAM, Intel i7');
+
+        self::assertCount(1, $result);
+        self::assertSame('16 GB', array_values($result)[0]);
+    }
+
+    public function testExtractsJsonFromMarkdownFences(): void
+    {
+        $first = $this->type->getAttributeDefinitions()->first();
+        \assert($first instanceof AttributeDefinition);
+        $defId = $first->getId()->toRfc4122();
+        $this->ollama->method('generate')
+            ->willReturn("Here is the JSON:\n```json\n{\"{$defId}\": \"16 GB\"}\n```\nDone.");
+
+        $result = $this->agent->encode($this->type, 'Specs text');
+
+        self::assertArrayHasKey($defId, $result);
+    }
+}
diff --git a/tests/Unit/Infrastructure/AI/Agent/OllamaVisionAgentTest.php b/tests/Unit/Infrastructure/AI/Agent/OllamaVisionAgentTest.php
new file mode 100644
index 0000000..5c8c93a
--- /dev/null
+++ b/tests/Unit/Infrastructure/AI/Agent/OllamaVisionAgentTest.php
@@ -0,0 +1,44 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Tests\Unit\Infrastructure\AI\Agent;
+
+use App\Infrastructure\AI\Agent\OllamaVisionAgent;
+use App\Infrastructure\AI\OllamaClientInterface;
+use PHPUnit\Framework\MockObject\MockObject;
+use PHPUnit\Framework\TestCase;
+
+final class OllamaVisionAgentTest extends TestCase
+{
+    private OllamaClientInterface&MockObject $ollama;
+    private OllamaVisionAgent $agent;
+
+    protected function setUp(): void
+    {
+        $this->ollama = $this->createMock(OllamaClientInterface::class);
+        $this->agent = new OllamaVisionAgent($this->ollama, 'llava');
+    }
+
+    public function testParsesModelAndSerialFromResponse(): void
+    {
+        $this->ollama->method('generateWithImage')
+            ->willReturn("MODEL: Dell Latitude 5520\nSERIAL: ABC12345");
+
+        $result = $this->agent->analyze('/tmp/photo.jpg');
+
+        self::assertSame('Dell Latitude 5520', $result['model']);
+        self::assertSame('ABC12345', $result['serial']);
+    }
+
+    public function testReturnsEmptyStringsWhenNotFound(): void
+    {
+        $this->ollama->method('generateWithImage')
+            ->willReturn('I cannot read the nameplate clearly.');
+
+        $result = $this->agent->analyze('/tmp/photo.jpg');
+
+        self::assertSame('', $result['model']);
+        self::assertSame('', $result['serial']);
+    }
+}
diff --git a/tests/Unit/Infrastructure/Messenger/Handler/ValidationHandlerTest.php b/tests/Unit/Infrastructure/Messenger/Handler/ValidationHandlerTest.php
new file mode 100644
index 0000000..7df201b
--- /dev/null
+++ b/tests/Unit/Infrastructure/Messenger/Handler/ValidationHandlerTest.php
@@ -0,0 +1,85 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Tests\Unit\Infrastructure\Messenger\Handler;
+
+use App\Domain\Article\ArticleType;
+use App\Domain\Article\AttributeDefinition;
+use App\Domain\Article\AttributeType;
+use App\Domain\Pipeline\AIPipelineJob;
+use App\Domain\Pipeline\AIPipelineJobType;
+use App\Domain\Pipeline\Repository\AIPipelineJobRepositoryInterface;
+use App\Infrastructure\Messenger\Handler\ValidationHandler;
+use App\Infrastructure\Messenger\Message\DraftArticleMessage;
+use App\Infrastructure\Messenger\Message\JsonCodingMessage;
+use App\Infrastructure\Messenger\Message\ValidationMessage;
+use PHPUnit\Framework\MockObject\MockObject;
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\Messenger\Envelope;
+use Symfony\Component\Messenger\MessageBusInterface;
+
+final class ValidationHandlerTest extends TestCase
+{
+    private AIPipelineJobRepositoryInterface&MockObject $jobRepo;
+    private MessageBusInterface&MockObject $bus;
+    private AIPipelineJob $job;
+    private ValidationHandler $handler;
+
+    protected function setUp(): void
+    {
+        $this->jobRepo = $this->createMock(AIPipelineJobRepositoryInterface::class);
+        $this->bus = $this->createMock(MessageBusInterface::class);
+        $this->handler = new ValidationHandler($this->jobRepo, $this->bus);
+
+        $this->job = new AIPipelineJob(AIPipelineJobType::Photo, ['test' => true]);
+    }
+
+    public function testDispatchesDraftMessageWhenAllAttributesPresent(): void
+    {
+        $this->jobRepo->method('findById')->willReturn($this->job);
+
+        $type = new ArticleType('Notebook');
+        $ramDef = new AttributeDefinition('RAM', AttributeType::String);
+        $cpuDef = new AttributeDefinition('CPU', AttributeType::String);
+        $type->addAttributeDefinition($ramDef);
+        $type->addAttributeDefinition($cpuDef);
+
+        $attributes = [
+            $ramDef->getId()->toRfc4122() => '16 GB',
+            $cpuDef->getId()->toRfc4122() => 'Intel i7',
+        ];
+
+        $this->bus->expects(self::once())
+            ->method('dispatch')
+            ->with(self::isInstanceOf(DraftArticleMessage::class))
+            ->willReturn(new Envelope(new \stdClass()));
+
+        ($this->handler)(new ValidationMessage(
+            jobId: $this->job->getId()->toRfc4122(),
+            articleTypeId: $type->getId()->toRfc4122(),
+            specsText: 'some specs',
+            attributes: $attributes,
+        ));
+    }
+
+    public function testRetriesJsonCodingWhenFieldsMissingAndUnderLimit(): void
+    {
+        $this->jobRepo->method('findById')->willReturn($this->job);
+
+        $type = new ArticleType('Notebook');
+        $type->addAttributeDefinition(new AttributeDefinition('RAM', AttributeType::String));
+
+        $this->bus->expects(self::once())
+            ->method('dispatch')
+            ->with(self::isInstanceOf(JsonCodingMessage::class))
+            ->willReturn(new Envelope(new \stdClass()));
+
+        ($this->handler)(new ValidationMessage(
+            jobId: $this->job->getId()->toRfc4122(),
+            articleTypeId: $type->getId()->toRfc4122(),
+            specsText: 'some specs',
+            attributes: [],
+        ));
+    }
+}