Use HasLinkedAgentsInterface interface for linked agents handling

Author: butschster

composer.json

@@ -4,7 +4,7 @@
   "license": "MIT",
   "require": {
     "php": "^8.3",
-    "llm-agents/agents": "^1.2",
+    "llm-agents/agents": "dev-feature/embeddings as 1.0",
     "llm-agents/json-schema-mapper": "^1.0"
   },
   "require-dev": {

src/Interceptors/LinkedAgentsInjector.php

@@ -5,6 +5,7 @@
 namespace LLM\Agents\PromptGenerator\Interceptors;
 
 use LLM\Agents\Agent\AgentRepositoryInterface;
+use LLM\Agents\Agent\HasLinkedAgentsInterface;
 use LLM\Agents\LLM\Prompt\Chat\MessagePrompt;
 use LLM\Agents\LLM\Prompt\Chat\Prompt;
 use LLM\Agents\LLM\Prompt\Chat\PromptInterface;
@@ -27,6 +28,10 @@ public function generate(
     ): PromptInterface {
         \assert($input->prompt instanceof Prompt);
 
+        if (!$input->agent instanceof HasLinkedAgentsInterface) {
+            return $next($input);
+        }
+
         if (\count($input->agent->getAgents()) === 0) {
             return $next($input);
         }