Added basic StructuredContent

Author: ineersa

src/Schema/Content/TextContent.php

@@ -23,6 +23,7 @@
  *     type: 'text',
  *     text: string,
  *     annotations?: AnnotationsData,
+ *     isError: bool
  * }
  *
  * @author Kyrian Obikwelu <[email protected]>
@@ -34,10 +35,12 @@ class TextContent extends Content
      *
      * @param mixed        $text        The value to convert to text
      * @param ?Annotations $annotations Optional annotations describing the content
+     * @param bool         $isError     Optional, mark response as error
      */
     public function __construct(
         public mixed $text,
         public readonly ?Annotations $annotations = null,
+        public readonly bool $isError = false,
     ) {
         $this->text = (\is_array($text) || \is_object($text))
             ? json_encode($text, \JSON_PRETTY_PRINT) : (string) $text;

src/Schema/Result/CallToolResult.php

@@ -87,6 +87,7 @@ public static function fromArray(array $data): self
     {
         $contents = [];
         $structuredContent = null;
+        $isError = false;
 
         foreach ($data as $item) {
             if (!$item instanceof Content) {
@@ -100,9 +101,13 @@ public static function fromArray(array $data): self
                 'text', 'audio', 'image', 'resource' => $item,
                 default => throw new InvalidArgumentException(\sprintf('Invalid content type in CallToolResult data: "%s".', $item['type'] ?? null)),
             };
+
+            if ('text' === $item->type && $item instanceof TextContent) {
+                $isError = $item->isError;
+            }
         }
 
-        return new self($contents, $structuredContent);
+        return new self($contents, $structuredContent, $isError);
     }
 
     /**
@@ -114,8 +119,12 @@ public static function fromArray(array $data): self
      */
     public function jsonSerialize(): array
     {
+        $result['content'] = [];
+        foreach ($this->content as $item) {
+            $result['content'][] = $item->jsonSerialize();
+        }
+
         $result = [
-            'content' => $this->content,
             'isError' => $this->isError,
         ];