Update app.py

app.py

@@ -7,16 +7,40 @@ from tools.final_answer import FinalAnswerTool
 
 from Gradio_UI import GradioUI
 
-# Below is an example of a tool that does nothing. Amaze us with your creativity !
+API_URL = "https://api-inference.huggingface.co/models/mistralai/Mistral-7B-Instruct-v0.2"
+headers = {
+    "Authorization": f"Bearer {os.environ['HF_TOKEN']}",
+}
+
 @tool
-def my_custom_tool(arg1:str, arg2:int)-> str: #it's import to specify the return type
-    #Keep this format for the description / args / args description but feel free to modify the tool
-    """A tool that does nothing yet 
+def extract_knowledge_graph(text: str) -> str:
+    """
+    Uses a Hugging Face LLM to extract a simple textual knowledge graph from the input text.
+    
     Args:
-        arg1: the first argument
-        arg2: the second argument
+        text: a paragraph of text
+    
+    Returns:
+        A string listing entities and relationships.
+    """
+    prompt = f"""Extract the entities and their relationships from the following text in the form of a simple knowledge graph with triples.
+
+    Text: "{text}"
+
+    Output format:
+    (Subject) -[Relation]-> (Object)
     """
-    return "What magic will you build ?"
+
+    response = requests.post(API_URL, headers=headers, json={"inputs": prompt})
+    
+    if response.status_code != 200:
+        return f"API error: {response.status_code} - {response.text}"
+    
+    try:
+        outputs = response.json()
+        return outputs[0]["generated_text"]
+    except Exception as e:
+        return f"Could not parse output: {e}"
 
 @tool
 def get_current_time_in_timezone(timezone: str) -> str: