diff --git a/README.md b/README.md
index a642f6f..2af6ce1 100644
--- a/README.md
+++ b/README.md
@@ -35,7 +35,8 @@ return [
 ```php
 use Cloudstudio\Ollama\Facades\Ollama;
 
-$response = Ollama::prompt('Why is the sky blue?')
+$response = Ollama::agent('You are a weather expert...')
+    ->prompt('Why is the sky blue?')
     ->model('llama2')
     ->options(['temperature' => 0.8])
     ->stream(false)
diff --git a/src/Ollama.php b/src/Ollama.php
index 1684605..d2a88e0 100755
--- a/src/Ollama.php
+++ b/src/Ollama.php
@@ -21,6 +21,7 @@ class Ollama
     protected $options;
     protected $stream;
     protected $raw;
+    protected $agent;
 
     /**
      * Ollama class constructor.
@@ -32,6 +33,18 @@ public function __construct(ModelService $modelService)
         $this->options = [];
     }
 
+    /**
+     * Sets the agent for generation.
+     *
+     * @param string $agent
+     * @return $this
+     */
+    public function agent(string $agent)
+    {
+        $this->agent = $agent;
+        return $this;
+    }
+
     /**
      * Sets the prompt for generation.
      *
@@ -40,7 +53,7 @@ public function __construct(ModelService $modelService)
      */
     public function prompt(string $prompt)
     {
-        $this->prompt = $prompt;
+        $this->prompt = $this->agent ? $this->agent . ' ' . $prompt : $prompt;
         return $this;
     }